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2021-03-06perf test: Fix sample-parsing failure on non-x86 platformsKan Liang
Executing 'perf test 27' fails on s390: [root@t35lp46 perf]# ./perf test -Fv 27 27: Sample parsing --- start --- ---- end ---- Sample parsing: FAILED! [root@t35lp46 perf]# The commit fbefe9c2f87fd392 ("perf tools: Support arch specific PERF_SAMPLE_WEIGHT_STRUCT processing") changes the ins_lat to a model-specific variable only for X86, but perf test still verify the variable in the generic test. Remove the ins_lat check in the generic test. The following patch will add it in the X86 specific test. Fixes: fbefe9c2f87fd392 ("perf tools: Support arch specific PERF_SAMPLE_WEIGHT_STRUCT processing") Reported-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Tested-by: Thomas Richter <tmricht@linux.ibm.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: http://lore.kernel.org/lkml/1614787285-104151-1-git-send-email-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu and thread map leaks in perf_time_to_tsc testNamhyung Kim
It should release the maps at the end. $ perf test -v 71 71: Convert perf time to TSC : --- start --- test child forked, pid 178744 mmap size 528384B 1st event perf time 59207256505278 tsc 13187166645142 rdtsc time 59207256542151 tsc 13187166723020 2nd event perf time 59207256543749 tsc 13187166726393 ================================================================= ==178744==ERROR: LeakSanitizer: detected memory leaks Direct leak of 40 byte(s) in 1 object(s) allocated from: #0 0x7faf601f9e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x55b620cfc00a in cpu_map__trim_new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:79 #2 0x55b620cfca2f in perf_cpu_map__read /home/namhyung/project/linux/tools/lib/perf/cpumap.c:149 #3 0x55b620cfd1ef in cpu_map__read_all_cpu_map /home/namhyung/project/linux/tools/lib/perf/cpumap.c:166 #4 0x55b620cfd1ef in perf_cpu_map__new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:181 #5 0x55b6209ef1b2 in test__perf_time_to_tsc tests/perf-time-to-tsc.c:73 #6 0x55b6209828fb in run_test tests/builtin-test.c:428 #7 0x55b6209828fb in test_and_print tests/builtin-test.c:458 #8 0x55b620984a53 in __cmd_test tests/builtin-test.c:679 #9 0x55b620984a53 in cmd_test tests/builtin-test.c:825 #10 0x55b6209f0cd4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #11 0x55b62087aa88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #12 0x55b62087aa88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #13 0x55b62087aa88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #14 0x7faf5fd2fd09 in __libc_start_main ../csu/libc-start.c:308 SUMMARY: AddressSanitizer: 72 byte(s) leaked in 2 allocation(s). test child finished with 1 ---- end ---- Convert perf time to TSC: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-12-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu map leaks in cpu_map_print testNamhyung Kim
It should be released after printing the map. $ perf test -v 52 52: Print cpu map : --- start --- test child forked, pid 172233 ================================================================= ==172233==ERROR: LeakSanitizer: detected memory leaks Direct leak of 156 byte(s) in 1 object(s) allocated from: #0 0x7fc472518e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x55e63b378f7a in cpu_map__trim_new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:79 #2 0x55e63b37a05c in perf_cpu_map__new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:237 #3 0x55e63b056d16 in cpu_map_print tests/cpumap.c:102 #4 0x55e63b056d16 in test__cpu_map_print tests/cpumap.c:120 #5 0x55e63afff8fb in run_test tests/builtin-test.c:428 #6 0x55e63afff8fb in test_and_print tests/builtin-test.c:458 #7 0x55e63b001a53 in __cmd_test tests/builtin-test.c:679 #8 0x55e63b001a53 in cmd_test tests/builtin-test.c:825 #9 0x55e63b06dc44 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #10 0x55e63aef7a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #11 0x55e63aef7a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #12 0x55e63aef7a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #13 0x7fc47204ed09 in __libc_start_main ../csu/libc-start.c:308 ... SUMMARY: AddressSanitizer: 448 byte(s) leaked in 7 allocation(s). test child finished with 1 ---- end ---- Print cpu map: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-11-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix a memory leak in thread_map_remove testNamhyung Kim
The str should be freed after creating a thread map. Also change the open-coded thread map deletion to a call to perf_thread_map__put(). $ perf test -v 44 44: Remove thread map : --- start --- test child forked, pid 165536 2 threads: 165535, 165536 1 thread: 165536 0 thread: ================================================================= ==165536==ERROR: LeakSanitizer: detected memory leaks Direct leak of 14 byte(s) in 1 object(s) allocated from: #0 0x7f54453ffe8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x7f5444f8c6a7 in __vasprintf_internal libio/vasprintf.c:71 SUMMARY: AddressSanitizer: 14 byte(s) leaked in 1 allocation(s). test child finished with 1 ---- end ---- Remove thread map: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-10-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix a thread map leak in thread_map_synthesize testNamhyung Kim
It missed to call perf_thread_map__put() after using the map. $ perf test -v 43 43: Synthesize thread map : --- start --- test child forked, pid 162640 ================================================================= ==162640==ERROR: LeakSanitizer: detected memory leaks Direct leak of 32 byte(s) in 1 object(s) allocated from: #0 0x7fd48cdaa1f8 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164 #1 0x563e6d5f8d0e in perf_thread_map__realloc /home/namhyung/project/linux/tools/lib/perf/threadmap.c:23 #2 0x563e6d3ef69a in thread_map__new_by_pid util/thread_map.c:46 #3 0x563e6d2cec90 in test__thread_map_synthesize tests/thread-map.c:97 #4 0x563e6d27d8fb in run_test tests/builtin-test.c:428 #5 0x563e6d27d8fb in test_and_print tests/builtin-test.c:458 #6 0x563e6d27fa53 in __cmd_test tests/builtin-test.c:679 #7 0x563e6d27fa53 in cmd_test tests/builtin-test.c:825 #8 0x563e6d2ebce4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #9 0x563e6d175a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #10 0x563e6d175a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #11 0x563e6d175a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #12 0x7fd48c8dfd09 in __libc_start_main ../csu/libc-start.c:308 SUMMARY: AddressSanitizer: 8224 byte(s) leaked in 2 allocation(s). test child finished with 1 ---- end ---- Synthesize thread map: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-9-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu and thread map leaks in switch_tracking testNamhyung Kim
The evlist and cpu/thread maps should be released together. Otherwise the following error was reported by Asan. $ perf test -v 35 35: Track with sched_switch : --- start --- test child forked, pid 159287 Using CPUID GenuineIntel-6-8E-C mmap size 528384B 1295 events recorded ================================================================= ==159287==ERROR: LeakSanitizer: detected memory leaks Direct leak of 40 byte(s) in 1 object(s) allocated from: #0 0x7fa28d9a2e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x5652f5a5affa in cpu_map__trim_new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:79 #2 0x5652f5a5ba1f in perf_cpu_map__read /home/namhyung/project/linux/tools/lib/perf/cpumap.c:149 #3 0x5652f5a5c1df in cpu_map__read_all_cpu_map /home/namhyung/project/linux/tools/lib/perf/cpumap.c:166 #4 0x5652f5a5c1df in perf_cpu_map__new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:181 #5 0x5652f5723bbf in test__switch_tracking tests/switch-tracking.c:350 #6 0x5652f56e18fb in run_test tests/builtin-test.c:428 #7 0x5652f56e18fb in test_and_print tests/builtin-test.c:458 #8 0x5652f56e3a53 in __cmd_test tests/builtin-test.c:679 #9 0x5652f56e3a53 in cmd_test tests/builtin-test.c:825 #10 0x5652f574fcc4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #11 0x5652f55d9a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #12 0x5652f55d9a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #13 0x5652f55d9a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #14 0x7fa28d4d8d09 in __libc_start_main ../csu/libc-start.c:308 SUMMARY: AddressSanitizer: 72 byte(s) leaked in 2 allocation(s). test child finished with 1 ---- end ---- Track with sched_switch: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-8-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu and thread map leaks in keep_tracking testNamhyung Kim
The evlist and the cpu/thread maps should be released together. Otherwise following error was reported by Asan. $ perf test -v 28 28: Use a dummy software event to keep tracking: --- start --- test child forked, pid 156810 mmap size 528384B ================================================================= ==156810==ERROR: LeakSanitizer: detected memory leaks Direct leak of 40 byte(s) in 1 object(s) allocated from: #0 0x7f637d2bce8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x55cc6295cffa in cpu_map__trim_new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:79 #2 0x55cc6295da1f in perf_cpu_map__read /home/namhyung/project/linux/tools/lib/perf/cpumap.c:149 #3 0x55cc6295e1df in cpu_map__read_all_cpu_map /home/namhyung/project/linux/tools/lib/perf/cpumap.c:166 #4 0x55cc6295e1df in perf_cpu_map__new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:181 #5 0x55cc626287cf in test__keep_tracking tests/keep-tracking.c:84 #6 0x55cc625e38fb in run_test tests/builtin-test.c:428 #7 0x55cc625e38fb in test_and_print tests/builtin-test.c:458 #8 0x55cc625e5a53 in __cmd_test tests/builtin-test.c:679 #9 0x55cc625e5a53 in cmd_test tests/builtin-test.c:825 #10 0x55cc62651cc4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #11 0x55cc624dba88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #12 0x55cc624dba88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #13 0x55cc624dba88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #14 0x7f637cdf2d09 in __libc_start_main ../csu/libc-start.c:308 SUMMARY: AddressSanitizer: 72 byte(s) leaked in 2 allocation(s). test child finished with 1 ---- end ---- Use a dummy software event to keep tracking: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-7-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu and thread map leaks in code_reading testNamhyung Kim
The evlist and the cpu/thread maps should be released together. Otherwise following error was reported by Asan. Note that this test still has memory leaks in DSOs so it still fails even after this change. I'll take a look at that too. # perf test -v 26 26: Object code reading : --- start --- test child forked, pid 154184 Looking at the vmlinux_path (8 entries long) symsrc__init: build id mismatch for vmlinux. symsrc__init: cannot get elf header. Using /proc/kcore for kernel data Using /proc/kallsyms for symbols Parsing event 'cycles' mmap size 528384B ... ================================================================= ==154184==ERROR: LeakSanitizer: detected memory leaks Direct leak of 439 byte(s) in 1 object(s) allocated from: #0 0x7fcb66e77037 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:154 #1 0x55ad9b7e821e in dso__new_id util/dso.c:1256 #2 0x55ad9b8cfd4a in __machine__addnew_vdso util/vdso.c:132 #3 0x55ad9b8cfd4a in machine__findnew_vdso util/vdso.c:347 #4 0x55ad9b845b7e in map__new util/map.c:176 #5 0x55ad9b8415a2 in machine__process_mmap2_event util/machine.c:1787 #6 0x55ad9b8fab16 in perf_tool__process_synth_event util/synthetic-events.c:64 #7 0x55ad9b8fab16 in perf_event__synthesize_mmap_events util/synthetic-events.c:499 #8 0x55ad9b8fbfdf in __event__synthesize_thread util/synthetic-events.c:741 #9 0x55ad9b8ff3e3 in perf_event__synthesize_thread_map util/synthetic-events.c:833 #10 0x55ad9b738585 in do_test_code_reading tests/code-reading.c:608 #11 0x55ad9b73b25d in test__code_reading tests/code-reading.c:722 #12 0x55ad9b6f28fb in run_test tests/builtin-test.c:428 #13 0x55ad9b6f28fb in test_and_print tests/builtin-test.c:458 #14 0x55ad9b6f4a53 in __cmd_test tests/builtin-test.c:679 #15 0x55ad9b6f4a53 in cmd_test tests/builtin-test.c:825 #16 0x55ad9b760cc4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #17 0x55ad9b5eaa88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #18 0x55ad9b5eaa88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #19 0x55ad9b5eaa88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #20 0x7fcb669acd09 in __libc_start_main ../csu/libc-start.c:308 ... SUMMARY: AddressSanitizer: 471 byte(s) leaked in 2 allocation(s). test child finished with 1 ---- end ---- Object code reading: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu and thread map leaks in sw_clock_freq testNamhyung Kim
The evlist has the maps with its own refcounts so we don't need to set the pointers to NULL. Otherwise following error was reported by Asan. Also change the goto label since it doesn't need to have two. # perf test -v 25 25: Software clock events period values : --- start --- test child forked, pid 149154 mmap size 528384B mmap size 528384B ================================================================= ==149154==ERROR: LeakSanitizer: detected memory leaks Direct leak of 32 byte(s) in 1 object(s) allocated from: #0 0x7fef5cd071f8 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164 #1 0x56260d5e8b8e in perf_thread_map__realloc /home/namhyung/project/linux/tools/lib/perf/threadmap.c:23 #2 0x56260d3df7a9 in thread_map__new_by_tid util/thread_map.c:63 #3 0x56260d2ac6b2 in __test__sw_clock_freq tests/sw-clock.c:65 #4 0x56260d26d8fb in run_test tests/builtin-test.c:428 #5 0x56260d26d8fb in test_and_print tests/builtin-test.c:458 #6 0x56260d26fa53 in __cmd_test tests/builtin-test.c:679 #7 0x56260d26fa53 in cmd_test tests/builtin-test.c:825 #8 0x56260d2dbb64 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #9 0x56260d165a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #10 0x56260d165a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #11 0x56260d165a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #12 0x7fef5c83cd09 in __libc_start_main ../csu/libc-start.c:308 ... test child finished with 1 ---- end ---- Software clock events period values : FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu and thread map leaks in task_exit testNamhyung Kim
The evlist has the maps with its own refcounts so we don't need to set the pointers to NULL. Otherwise following error was reported by Asan. Also change the goto label since it doesn't need to have two. # perf test -v 24 24: Number of exit events of a simple workload : --- start --- test child forked, pid 145915 mmap size 528384B ================================================================= ==145915==ERROR: LeakSanitizer: detected memory leaks Direct leak of 32 byte(s) in 1 object(s) allocated from: #0 0x7fc44e50d1f8 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164 #1 0x561cf50f4d2e in perf_thread_map__realloc /home/namhyung/project/linux/tools/lib/perf/threadmap.c:23 #2 0x561cf4eeb949 in thread_map__new_by_tid util/thread_map.c:63 #3 0x561cf4db7fd2 in test__task_exit tests/task-exit.c:74 #4 0x561cf4d798fb in run_test tests/builtin-test.c:428 #5 0x561cf4d798fb in test_and_print tests/builtin-test.c:458 #6 0x561cf4d7ba53 in __cmd_test tests/builtin-test.c:679 #7 0x561cf4d7ba53 in cmd_test tests/builtin-test.c:825 #8 0x561cf4de7d04 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #9 0x561cf4c71a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #10 0x561cf4c71a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #11 0x561cf4c71a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #12 0x7fc44e042d09 in __libc_start_main ../csu/libc-start.c:308 ... test child finished with 1 ---- end ---- Number of exit events of a simple workload: FAILED! Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix a memory leak in attr testNamhyung Kim
The get_argv_exec_path() returns a dynamic memory so it should be freed after use. $ perf test -v 17 ... ==141682==ERROR: LeakSanitizer: detected memory leaks Direct leak of 33 byte(s) in 1 object(s) allocated from: #0 0x7f09107d2e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x7f091035f6a7 in __vasprintf_internal libio/vasprintf.c:71 SUMMARY: AddressSanitizer: 33 byte(s) leaked in 1 allocation(s). Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210301140409.184570-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf test: Fix cpu and thread map leaks in basic mmap testNamhyung Kim
The evlist has the maps with its own refcounts so we don't need to set the pointers to NULL. Otherwise following error was reported by Asan. # perf test -v 4 4: Read samples using the mmap interface : --- start --- test child forked, pid 139782 mmap size 528384B ================================================================= ==139782==ERROR: LeakSanitizer: detected memory leaks Direct leak of 40 byte(s) in 1 object(s) allocated from: #0 0x7f1f76daee8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x564ba21a0fea in cpu_map__trim_new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:79 #2 0x564ba21a1a0f in perf_cpu_map__read /home/namhyung/project/linux/tools/lib/perf/cpumap.c:149 #3 0x564ba21a21cf in cpu_map__read_all_cpu_map /home/namhyung/project/linux/tools/lib/perf/cpumap.c:166 #4 0x564ba21a21cf in perf_cpu_map__new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:181 #5 0x564ba1e48298 in test__basic_mmap tests/mmap-basic.c:55 #6 0x564ba1e278fb in run_test tests/builtin-test.c:428 #7 0x564ba1e278fb in test_and_print tests/builtin-test.c:458 #8 0x564ba1e29a53 in __cmd_test tests/builtin-test.c:679 #9 0x564ba1e29a53 in cmd_test tests/builtin-test.c:825 #10 0x564ba1e95cb4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313 #11 0x564ba1d1fa88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365 #12 0x564ba1d1fa88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409 #13 0x564ba1d1fa88 in main /home/namhyung/project/linux/tools/perf/perf.c:539 #14 0x7f1f768e4d09 in __libc_start_main ../csu/libc-start.c:308 ... test child finished with 1 ---- end ---- Read samples using the mmap interface: FAILED! failed to open shell test directory: /home/namhyung/libexec/perf-core/tests/shell Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Stephane Eranian <eranian@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Link: https://lore.kernel.org/r/20210301140409.184570-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06perf daemon: Fix running test for non root userJiri Olsa
John reported that the daemon test is not working for non root user. Changing the tests configurations so it's allowed to run under normal user. Fixes: 2291bb915b55 ("perf tests: Add daemon 'list' command test") Reported-by: John Garry <john.garry@huawei.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210301122510.64402-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-18perf buildid-cache: Add test for 16-byte build-idNicholas Fraser
tests/shell/buildid.sh added an ELF executable with an MD5 build-id to the perf debug cache but did not check whether the object was printed by a subsequent call to "perf buildid-cache -l". It was being omitted from the list. A previous commit fixed the bug that left it out of the list. This adds a test for it. Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Huw Davies <huw@codeweavers.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Song Liu <songliubraving@fb.com> Cc: Tommi Rantala <tommi.t.rantala@nokia.com> Cc: Ulrich Czekalla <uczekalla@codeweavers.com> Link: https://lore.kernel.org/r/c08be235-7434-5208-5f21-e8c9a3265464@codeweavers.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-18perf test: Output the sub testing result in cs-etmLeo Yan
The CoreSight testing contains sub cases, e.g. every CPU iterates the possible conntected sinks and tests the paths between the associated ETM with the found sink. Besides the per-thread testing, it also contains system wide testing and snapshot testing. To easier observe results for the sub cases, this patch introduces a new function arm_cs_report(), it outputs the result as "PASS" or "FAIL" for every sub case; and it records the error in the variable "glb_err" which is used as the final return value when exits the testing. Before: # perf test 73 -v 73: Check Arm CoreSight trace data recording and synthesized samples: --- start --- test child forked, pid 17423 Recording trace (only user mode) with path: CPU0 => tmc_etf0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: Recording trace (only user mode) with path: CPU0 => tmc_etr0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: [...] After: # perf test 73 -v 73: Check Arm CoreSight trace data recording and synthesized samples: --- start --- test child forked, pid 17423 Recording trace (only user mode) with path: CPU0 => tmc_etf0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: CoreSight path testing (CPU0 -> tmc_etf0): PASS Recording trace (only user mode) with path: CPU0 => tmc_etr0 Looking at perf.data file for dumping branch samples: Looking at perf.data file for reporting branch samples: Looking at perf.data file for instruction samples: CoreSight path testing (CPU0 -> tmc_etr0): PASS [...] Signed-off-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Basil Eljuse <basil.eljuse@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Link: http://lore.kernel.org/lkml/20210215115944.535986-3-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-18perf test: Suppress logs in cs-etm testingLeo Yan
With the option '-v' for the verbose logs, "perf test" outputs tons of logs for the CoreSight case, the logs are mainly introduced by the decoding. And it outputs some trivial info from "perf record" command and there have debugging info for CPU number and device name when iterates between ETMs and sinks. For a neat output format, this patch redirects the output logs to "/dev/null", thus can avoid to flood logs. And it removes the redundant log for CPU number and device name, which have already printed out the relevant info in the function record_touch_file(). Signed-off-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Basil Eljuse <basil.eljuse@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Link: http://lore.kernel.org/lkml/20210215115944.535986-2-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-18perf test: Fix unaligned access in sample parsing testNamhyung Kim
The ubsan reported the following error. It was because sample's raw data missed u32 padding at the end. So it broke the alignment of the array after it. The raw data contains an u32 size prefix so the data size should have an u32 padding after 8-byte aligned data. 27: Sample parsing :util/synthetic-events.c:1539:4: runtime error: store to misaligned address 0x62100006b9bc for type '__u64' (aka 'unsigned long long'), which requires 8 byte alignment 0x62100006b9bc: note: pointer points here 00 00 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ #0 0x561532a9fc96 in perf_event__synthesize_sample util/synthetic-events.c:1539:13 #1 0x5615327f4a4f in do_test tests/sample-parsing.c:284:8 #2 0x5615327f3f50 in test__sample_parsing tests/sample-parsing.c:381:9 #3 0x56153279d3a1 in run_test tests/builtin-test.c:424:9 #4 0x56153279c836 in test_and_print tests/builtin-test.c:454:9 #5 0x56153279b7eb in __cmd_test tests/builtin-test.c:675:4 #6 0x56153279abf0 in cmd_test tests/builtin-test.c:821:9 #7 0x56153264e796 in run_builtin perf.c:312:11 #8 0x56153264cf03 in handle_internal_command perf.c:364:8 #9 0x56153264e47d in run_argv perf.c:408:2 #10 0x56153264c9a9 in main perf.c:538:3 #11 0x7f137ab6fbbc in __libc_start_main (/lib64/libc.so.6+0x38bbc) #12 0x561532596828 in _start ... SUMMARY: UndefinedBehaviorSanitizer: misaligned-pointer-use util/synthetic-events.c:1539:4 in Fixes: 045f8cd8542d ("perf tests: Add a sample parsing test") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210214091638.519643-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-17perf tools: Add OCaml demanglingFabian Hemmer
Detect symbols generated by the OCaml compiler based on their prefix. Demangle OCaml symbols, returning a newly allocated string (like the existing Java demangling functionality). Move a helper function (hex) from tests/code-reading.c to util/string.c To test: echo 'Printf.printf "%d\n" (Random.int 42)' > test.ml perf record ocamlopt.opt test.ml perf report -d ocamlopt.opt Signed-off-by: Fabian Hemmer <copy@copy.sh> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> LPU-Reference: 20210203211537.b25ytjb6dq5jfbwx@nyu Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-12perf env: Remove unneeded internal/cpumap inclusionsIan Rogers
Minor cleanup. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20210211183914.4093187-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-11perf tests: Add daemon 'lock' testJiri Olsa
Add a test for the perf daemon 'lock' command ensuring only one instance of daemon can run over one base directory. Committer testing: [root@five ~]# perf test -v daemon 76: daemon operations : --- start --- test child forked, pid 793255 test daemon list test daemon reconfig test daemon stop test daemon signal signal 12 sent to session 'test [793506]' signal 12 sent to session 'test [793506]' test daemon ping test daemon lock test child finished with 0 ---- end ---- daemon operations: Ok [root@five ~]# Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20210208200908.1019149-25-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-11perf tests: Add daemon 'ping' command testJiri Olsa
Add a test for the perf daemon 'ping' command. The tests verifies the ping command gets proper answer from sessions. Committer testing: [root@five ~]# perf test daemon 76: daemon operations : Ok [root@five ~]# perf test -v daemon 76: daemon operations : --- start --- test child forked, pid 792143 test daemon list test daemon reconfig test daemon stop test daemon signal signal 12 sent to session 'test [792415]' signal 12 sent to session 'test [792415]' test daemon ping test child finished with 0 ---- end ---- daemon operations: Ok [root@five ~]# Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20210208200908.1019149-24-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-11perf tests: Add daemon 'signal' command testJiri Olsa
Add a test for the perf daemon 'signal' command. The test sends a signal to configured sessions and verifies the perf data files were generated accordingly. Committer testing: [root@five ~]# perf test daemon 76: daemon operations : Ok [root@five ~]# perf test -v daemon 76: daemon operations : --- start --- test child forked, pid 790017 test daemon list test daemon reconfig test daemon stop test daemon signal signal 12 sent to session 'test [790268]' signal 12 sent to session 'test [790268]' test child finished with 0 ---- end ---- daemon operations: Ok [root@five ~]# Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20210208200908.1019149-23-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-11perf tests: Add daemon 'stop' command testJiri Olsa
Add a test for the perf daemon 'stop' command. The test stops the daemon and verifies all the configured sessions are properly terminated. Committer testing: [root@five ~]# time perf test daemon 76: daemon operations : Ok [root@five ~]# time perf test -v daemon 76: daemon operations : --- start --- test child forked, pid 788560 test daemon list test daemon reconfig test daemon stop test child finished with 0 ---- end ---- daemon operations: Ok # Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20210208200908.1019149-22-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-11perf tests: Add daemon reconfig testJiri Olsa
Add a test for daemon reconfiguration. The test changes the configuration file and checks that the session is changed properly. Committer testing: [root@five ~]# perf test daemon 76: daemon operations : Ok [root@five ~]# time perf test daemon 76: daemon operations : Ok real 0m6.055s user 0m0.174s sys 0m0.147s [root@five ~]# time perf test -v daemon 76: daemon operations : --- start --- test child forked, pid 786863 test daemon list test daemon reconfig test child finished with 0 ---- end ---- daemon operations: Ok real 0m6.127s user 0m0.222s sys 0m0.165s [root@five ~]# Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20210208200908.1019149-21-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-11perf tests: Add daemon 'list' command testJiri Olsa
Add test for basic perf daemon listing via the CSV output mode (-x option). Check that the configured sessions display expected values. Committer testing: [root@five ~]# perf test daemon 76: daemon operations : Ok [root@five ~]# [root@five ~]# perf test -v daemon 76: daemon operations : --- start --- test child forked, pid 785037 test daemon list test child finished with 0 ---- end ---- daemon operations: Ok [root@five ~]# Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20210208200908.1019149-20-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-08perf test: Support PERF_SAMPLE_WEIGHT_STRUCTKan Liang
Support the new sample type for sample-parsing test case. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/1612296553-21962-8-git-send-email-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-03perf test: Add parse-metric memory bandwidth testcaseJohn Garry
Event duration_time in a metric expression requires special handling. Improve test coverage by including a metric whose expression includes duration_time. The actual metric is a copied from the L1D_Cache_Fill_BW metric on my broadwell machine. Signed-off-by: John Garry <john.garry@huawei.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linuxarm@openeuler.org Link: http://lore.kernel.org/lkml/1611578842-5749-1-git-send-email-john.garry@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-01-20Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-01-20perf test: Add test case for PERF_SAMPLE_CODE_PAGE_SIZEStephane Eranian
Extend sample-parsing test cases to support new sample type PERF_SAMPLE_CODE_PAGE_SIZE. Signed-off-by: Stephane Eranian <eranian@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210105195752.43489-7-kan.liang@linux.intel.com Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-01-15perf test: Fix shadow stat test for non-bash shellsNamhyung Kim
It was using some bash-specific features and failed to parse when running with a different shell like below: root@kbl-ppc:~/kbl-ws/perf-dev/lck-9077/acme.tmp/tools/perf# ./perf test 83 -vv 83: perf stat metrics (shadow stat) test : --- start --- test child forked, pid 3922 ./tests/shell/stat+shadow_stat.sh: 19: ./tests/shell/stat+shadow_stat.sh: [[: not found ./tests/shell/stat+shadow_stat.sh: 24: ./tests/shell/stat+shadow_stat.sh: [[: not found ./tests/shell/stat+shadow_stat.sh: 30: ./tests/shell/stat+shadow_stat.sh: [[: not found (standard_in) 2: syntax error ./tests/shell/stat+shadow_stat.sh: 36: ./tests/shell/stat+shadow_stat.sh: [[: not found ./tests/shell/stat+shadow_stat.sh: 19: ./tests/shell/stat+shadow_stat.sh: [[: not found ./tests/shell/stat+shadow_stat.sh: 24: ./tests/shell/stat+shadow_stat.sh: [[: not found ./tests/shell/stat+shadow_stat.sh: 30: ./tests/shell/stat+shadow_stat.sh: [[: not found (standard_in) 2: syntax error ./tests/shell/stat+shadow_stat.sh: 36: ./tests/shell/stat+shadow_stat.sh: [[: not found ./tests/shell/stat+shadow_stat.sh: 45: ./tests/shell/stat+shadow_stat.sh: declare: not found test child finished with -1 ---- end ---- perf stat metrics (shadow stat) test: FAILED! Reported-by: Jin Yao <yao.jin@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Laight <david.laight@aculab.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20210114050609.1258820-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24perf stat aggregation: Add separate thread memberJames Clark
A separate field isn't strictly required. The core field could be re-used for thread IDs as a single field was used previously. But separating them will avoid confusion and catch potential errors where core IDs are read as thread IDs and vice versa. Also remove the placeholder id field which is now no longer used. Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-13-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24perf stat aggregation: Add separate core memberJames Clark
Add core as a separate member so that it doesn't have to be packed into the int value. Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-12-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24perf stat aggregation: Add separate die memberJames Clark
Add die as a separate member so that it doesn't have to be packed into the int value. Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-11-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24perf stat aggregation: Add separate socket memberJames Clark
Add socket as a separate member so that it doesn't have to be packed into the int value. When the socket ID was larger than 8 bits the output appeared corrupted or incomplete. For example, here on ThunderX2 'perf stat' reports a socket of -1 and an invalid die number: ./perf stat -a --per-die The socket id number is too big. Performance counter stats for 'system wide': S-1-D255 128 687.99 msec cpu-clock # 57.240 CPUs utilized ... S36-D0 128 842.34 msec cpu-clock # 70.081 CPUs utilized ... And with --per-core there is an entry with an invalid core ID: ./perf stat record -a --per-core The socket id number is too big. Performance counter stats for 'system wide': S-1-D255-C65535 128 671.04 msec cpu-clock # 54.112 CPUs utilized ... S36-D0-C0 4 28.27 msec cpu-clock # 2.279 CPUs utilized ... This fixes the "Session topology" self test on ThunderX2. After this fix the output contains the correct socket and die IDs and no longer prints a warning about the size of the socket ID: ./perf stat --per-die -a Performance counter stats for 'system wide': S36-D0 128 169,869.39 msec cpu-clock # 127.501 CPUs utilized ... S3612-D0 128 169,733.05 msec cpu-clock # 127.398 CPUs utilized Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-10-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24perf stat aggregation: Add separate node memberJames Clark
Add node as a separate member so that it doesn't have to be packed into the int value. Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-9-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24perf stat: Replace aggregation ID with a structJames Clark
Replace all occurences of the usage of int with the new struct cpu_aggr_id. No functional changes. Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-5-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24perf tests: Improve topology test to check all aggregation typesJames Clark
Improve the topology test to check all aggregation types. This is to lock down the behaviour before 'id' is changed into a struct in later commits. Committer testing: $ perf test topology 41: Session topology: Ok $ $ perf test -v topology 41: Session topology: --- start --- test child forked, pid 965552 templ file: /tmp/perf-test-mO7NtI Problems creating module maps, continuing anyway... CPU 0, core 0, socket 0 CPU 1, core 1, socket 0 CPU 2, core 2, socket 0 CPU 3, core 4, socket 0 CPU 4, core 5, socket 0 CPU 5, core 6, socket 0 CPU 6, core 8, socket 0 CPU 7, core 9, socket 0 CPU 8, core 10, socket 0 CPU 9, core 12, socket 0 CPU 10, core 13, socket 0 CPU 11, core 14, socket 0 CPU 12, core 0, socket 0 CPU 13, core 1, socket 0 CPU 14, core 2, socket 0 CPU 15, core 4, socket 0 CPU 16, core 5, socket 0 CPU 17, core 6, socket 0 CPU 18, core 8, socket 0 CPU 19, core 9, socket 0 CPU 20, core 10, socket 0 CPU 21, core 12, socket 0 CPU 22, core 13, socket 0 CPU 23, core 14, socket 0 test child finished with 0 ---- end ---- Session topology: Ok $ Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: John Garry <john.garry@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20201126141328.6509-2-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-17perf test: Make sample-parsing test aware of PERF_SAMPLE_{CODE,DATA}_PAGE_SIZEArnaldo Carvalho de Melo
To fix this: $ perf test -v 27 27: Sample parsing : --- start --- test child forked, pid 586013 sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating test child finished with -1 ---- end ---- Sample parsing: FAILED! $ This patchset is still not completely merged, so when adding the PERF_SAMPLE_CODE_PAGE_SIZE to 'struct perf_sample' we need to add the bits added in this patch for 'perf_sample.data_page_size'. Fixes: 251cc77b8176de37 ("tools headers UAPI: Update tools's copy of linux/perf_event.h") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-17perf tools: Add support to read build id from compressed elfJiri Olsa
Adding support to decompress file before reading build id. Adding filename__read_build_id and change its current versions to read_build_id. Shutting down stderr output of perf list in the shell test: 82: Check open filename arg using perf trace + vfs_getname : Ok because with decompression code in the place we the filename__read_build_id function is more verbose in case of error and the test did not account for that. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20201214105457.543111-7-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-15perf test: Fix metric parsing testKajol Jain
Commit e1c92a7fbbc5 ("perf tests: Add another metric parsing test") add another test for metric parsing. The test goes through all metrics compiled for arch within pmu events and try to parse them. Right now this test is failing in powerpc machine. Result in power9 platform: [command]# ./perf test 10 10: PMU events : 10.1: PMU event table sanity : Ok 10.2: PMU event map aliases : Ok 10.3: Parsing of PMU event table metrics : Skip (some metrics failed) 10.4: Parsing of PMU event table metrics with fake PMUs : FAILED! Issue is we are passing different runtime parameter value in "expr__find_other" and "expr__parse" function which is called from function `metric_parse_fake`. And because of this parsing of hv-24x7 metrics is failing. [command]# ./perf test 10 -vv ..... hv_24x7/pm_mcs01_128b_rd_disp_port01,chip=1/ not found expr__parse failed test child finished with -1 ---- end ---- PMU events subtest 4: FAILED! This patch fix this issue and change runtime parameter value to '0' in expr__parse function. Result in power9 platform after this patch: [command]# ./perf test 10 10: PMU events : 10.1: PMU event table sanity : Ok 10.2: PMU event map aliases : Ok 10.3: Parsing of PMU event table metrics : Skip (some metrics failed) 10.4: Parsing of PMU event table metrics with fake PMUs : Ok Fixes: e1c92a7fbbc5 ("perf tests: Add another metric parsing test") Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Link: http://lore.kernel.org/lkml/20201119152411.46041-1-kjain@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' event attribute config ↵Arnaldo Carvalho de Melo
methods perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for alternative 'struct evlist' constructorsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' event selection methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' create maps methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' evsel list methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' tracking event methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' sample id lookup methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' sample parsing methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' stats methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-30perf evlist: Use the right prefix for 'struct evlist' 'workload' methodsArnaldo Carvalho de Melo
perf_evlist__ is for 'struct perf_evlist' methods, in tools/lib/perf/, go on completing this split. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>