diff options
| -rw-r--r-- | tools/perf/bench/mem-functions.c | 29 | ||||
| -rw-r--r-- | tools/perf/builtin-bench.c | 6 |
2 files changed, 20 insertions, 15 deletions
diff --git a/tools/perf/bench/mem-functions.c b/tools/perf/bench/mem-functions.c index 1605249d2912..318da3421e69 100644 --- a/tools/perf/bench/mem-functions.c +++ b/tools/perf/bench/mem-functions.c @@ -32,13 +32,17 @@ static int cycles_fd; static const struct option options[] = { OPT_STRING('l', "size", &size_str, "1MB", "Specify the size of the memory buffers. " - "Available units: B, KB, MB, GB and TB (upper and lower)"), + "Available units: B, KB, MB, GB and TB (case insensitive)"), + OPT_STRING('r', "routine", &routine_str, "all", - "Specify the routine to run, \"all\" runs all available routines"), + "Specify the routine to run, \"all\" runs all available routines, \"help\" lists them"), + OPT_INTEGER('i', "iterations", &iterations, - "repeat memcpy() invocation this number of times"), + "Repeat the function this number of times"), + OPT_BOOLEAN('c', "cycles", &use_cycles, "Use a cycles event instead of gettimeofday() to measure performance"), + OPT_END() }; @@ -106,13 +110,13 @@ static double timeval2double(struct timeval *ts) #define print_bps(x) do { \ if (x < K) \ - printf(" %14lf B/Sec\n", x); \ + printf(" %14lf bytes/sec\n", x); \ else if (x < K * K) \ - printf(" %14lfd KB/Sec\n", x / K); \ + printf(" %14lfd KB/sec\n", x / K); \ else if (x < K * K * K) \ - printf(" %14lf MB/Sec\n", x / K / K); \ + printf(" %14lf MB/sec\n", x / K / K); \ else \ - printf(" %14lf GB/Sec\n", x / K / K / K); \ + printf(" %14lf GB/sec\n", x / K / K / K); \ } while (0) struct bench_mem_info { @@ -128,10 +132,10 @@ static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t s double result_bps = 0.0; u64 result_cycles = 0; - printf("Routine %s (%s)\n", r->name, r->desc); + printf("# Routine '%s' (%s)\n", r->name, r->desc); if (bench_format == BENCH_FORMAT_DEFAULT) - printf("# Copying %s Bytes ...\n\n", size_str); + printf("# Copying %s bytes ...\n\n", size_str); if (use_cycles) { result_cycles = info->do_cycles(r, size); @@ -142,7 +146,7 @@ static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t s switch (bench_format) { case BENCH_FORMAT_DEFAULT: if (use_cycles) { - printf(" %14lf cycles/Byte\n", (double)result_cycles/size_total); + printf(" %14lf cycles/byte\n", (double)result_cycles/size_total); } else { print_bps(result_bps); } @@ -192,8 +196,9 @@ static int bench_mem_common(int argc, const char **argv, struct bench_mem_info * break; } if (!info->routines[i].name) { - printf("Unknown routine: %s\n", routine_str); - printf("Available routines...\n"); + if (strcmp(routine_str, "help") && strcmp(routine_str, "h")) + printf("Unknown routine: %s\n", routine_str); + printf("Available routines:\n"); for (i = 0; info->routines[i].name; i++) { printf("\t%s ... %s\n", info->routines[i].name, info->routines[i].desc); diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c index 1b585213ba5a..a8fc948c8ace 100644 --- a/tools/perf/builtin-bench.c +++ b/tools/perf/builtin-bench.c @@ -49,9 +49,9 @@ static struct bench sched_benchmarks[] = { }; static struct bench mem_benchmarks[] = { - { "memcpy", "Benchmark for memcpy()", bench_mem_memcpy }, - { "memset", "Benchmark for memset() tests", bench_mem_memset }, - { "all", "Test all memory benchmarks", NULL }, + { "memcpy", "Benchmark for memcpy() functions", bench_mem_memcpy }, + { "memset", "Benchmark for memset() functions", bench_mem_memset }, + { "all", "Test all memory access benchmarks", NULL }, { NULL, NULL, NULL } }; |