diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-lock.c | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index c4eb854ff7eb..1e93179c2d30 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -387,7 +387,15 @@ static struct lock_seq_stat *get_seq(struct thread_stat *ts, void *addr) return seq; } -static int bad_hist[4]; +enum broken_state { + BROKEN_ACQUIRE, + BROKEN_ACQUIRED, + BROKEN_CONTENDED, + BROKEN_RELEASE, + BROKEN_MAX, +}; + +static int bad_hist[BROKEN_MAX]; static void report_lock_acquire_event(struct trace_acquire_event *acquire_event, @@ -437,7 +445,7 @@ report_lock_acquire_event(struct trace_acquire_event *acquire_event, broken: /* broken lock sequence, discard it */ ls->discard = 1; - bad_hist[0]++; + bad_hist[BROKEN_ACQUIRE]++; list_del(&seq->list); free(seq); goto end; @@ -481,7 +489,6 @@ report_lock_acquired_event(struct trace_acquired_event *acquired_event, case SEQ_STATE_CONTENDED: contended_term = timestamp - seq->prev_event_time; ls->wait_time_total += contended_term; - if (contended_term < ls->wait_time_min) ls->wait_time_min = contended_term; else if (ls->wait_time_max < contended_term) @@ -492,7 +499,7 @@ report_lock_acquired_event(struct trace_acquired_event *acquired_event, case SEQ_STATE_READ_ACQUIRED: /* broken lock sequence, discard it */ ls->discard = 1; - bad_hist[1]++; + bad_hist[BROKEN_ACQUIRED]++; list_del(&seq->list); free(seq); goto end; @@ -540,7 +547,7 @@ report_lock_contended_event(struct trace_contended_event *contended_event, case SEQ_STATE_CONTENDED: /* broken lock sequence, discard it */ ls->discard = 1; - bad_hist[2]++; + bad_hist[BROKEN_CONTENDED]++; list_del(&seq->list); free(seq); goto end; @@ -594,7 +601,7 @@ report_lock_release_event(struct trace_release_event *release_event, case SEQ_STATE_RELEASED: /* broken lock sequence, discard it */ ls->discard = 1; - bad_hist[3]++; + bad_hist[BROKEN_RELEASE]++; goto free_seq; break; default: @@ -713,6 +720,21 @@ process_raw_event(void *data, int cpu, u64 timestamp, struct thread *thread) process_lock_release_event(data, event, cpu, timestamp, thread); } +static void print_bad_events(int bad, int total) +{ + /* Output for debug, this have to be removed */ + int i; + const char *name[4] = + { "acquire", "acquired", "contended", "release" }; + + pr_info("\n=== output for debug===\n\n"); + pr_info("bad:%d, total:%d\n", bad, total); + pr_info("bad rate:%f\n", (double)(bad / total)); + pr_info("histogram of events caused bad sequence\n"); + for (i = 0; i < BROKEN_MAX; i++) + pr_info(" %10s: %d\n", name[i], bad_hist[i]); +} + /* TODO: various way to print, coloring, nano or milli sec */ static void print_result(void) { @@ -762,20 +784,7 @@ static void print_result(void) pr_info("\n"); } - { - /* Output for debug, this have to be removed */ - int i; - const char *name[4] = - { "acquire", "acquired", "contended", "release" }; - - pr_debug("\n=== output for debug===\n\n"); - pr_debug("bad:%d, total:%d\n", bad, total); - pr_debug("bad rate:%f\n", (double)(bad / total)); - - pr_debug("histogram of events caused bad sequence\n"); - for (i = 0; i < 4; i++) - pr_debug(" %10s: %d\n", name[i], bad_hist[i]); - } + print_bad_events(bad, total); } static int info_threads; |