Messages in this thread Patch in this message | | | From | Jiri Olsa <> | Subject | [PATCH 20/21] perf report: Add user data processing stats | Date | Wed, 24 Jan 2018 12:51:42 +0100 |
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Adding user data processing stats for to review the processing. Adding following per-thread counters:
user_data_sample - nb of samples with with PERF_RECORD_MISC_USER_DATA set user_data_event - nb of user data events user_data_match - nb of samples that matched user data event user_data_drop - nb of samples that did not match any user data event and were drop
Link: http://lkml.kernel.org/n/tip-j4zh9fpntjbtjo993cjdn92b@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- tools/perf/builtin-report.c | 6 ++++++ tools/perf/util/thread.h | 8 ++++++++ 2 files changed, 14 insertions(+)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index a1cd5fd793fc..82b2368d208a 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -314,6 +314,7 @@ perf_thread__add_user_data(struct thread *thread, return -ENOMEM; } + thread->stats.user_data_sample++; list_add_tail(&entry->list, &thread->user_data_list); return 0; } @@ -425,6 +426,8 @@ thread__flush_user_data(struct thread *thread, struct user_data *entry, *p; int ret = 0; + thread->stats.user_data_event++; + list_for_each_entry_safe(entry, p, &thread->user_data_list, list) { /* different event, skip it */ if (entry->sample.id != sample->id) @@ -439,6 +442,9 @@ thread__flush_user_data(struct thread *thread, ret = user_data__process(entry, sample, event, rep); if (ret) pr_debug("problem adding hist entry, skipping event\n"); + thread->stats.user_data_match++; + } else { + thread->stats.user_data_drop++; } list_del(&entry->list); diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h index e78b295bbcdb..742bbf8cb285 100644 --- a/tools/perf/util/thread.h +++ b/tools/perf/util/thread.h @@ -22,6 +22,13 @@ struct user_data { struct perf_evsel *evsel; }; +struct thread_stats { + u64 user_data_sample; + u64 user_data_event; + u64 user_data_match; + u64 user_data_drop; +}; + struct thread { union { struct rb_node rb_node; @@ -51,6 +58,7 @@ struct thread { void *addr_space; struct unwind_libunwind_ops *unwind_libunwind_ops; #endif + struct thread_stats stats; }; struct machine; -- 2.13.6
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