diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2023-04-07 00:06:09 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-07 03:52:37 +0300 |
| commit | aae7e4534adbd96598d06e449d4f05867b0ed23f (patch) | |
| tree | 885f3ee56e4b32e79bf302c554190a38c4859281 /tools | |
| parent | 954cdac74e1e7aca518c8ef49d4fa70c8ae72d7b (diff) | |
| download | linux-aae7e4534adbd96598d06e449d4f05867b0ed23f.tar.xz | |
perf lock contention: Update total/bad stats for hidden entries
When -E option is used, it only prints the given number of entries but
the event stat at the end should have the numbers for entire entries.
Likewise, -S option will hide entries that don't have the named
function in the callstack. Also update event stat for them.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230406210611.1622492-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-lock.c | 11 | ||||
| -rw-r--r-- | tools/perf/util/bpf_lock_contention.c | 4 | ||||
| -rw-r--r-- | tools/perf/util/lock-contention.h | 1 |
3 files changed, 15 insertions, 1 deletions
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index 01b318d6c80a..7742fa255c44 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -1726,6 +1726,17 @@ static void print_contention_result(struct lock_contention *con) break; } + if (print_nr_entries) { + /* update the total/bad stats */ + while ((st = pop_from_result())) { + total += use_bpf ? st->nr_contended : 1; + if (st->broken) + bad++; + } + } + /* some entries are collected but hidden by the callstack filter */ + total += con->nr_filtered; + if (use_bpf) print_bpf_events(total, &con->fails); else diff --git a/tools/perf/util/bpf_lock_contention.c b/tools/perf/util/bpf_lock_contention.c index 0071058ac3d2..ea4f697d2a9f 100644 --- a/tools/perf/util/bpf_lock_contention.c +++ b/tools/perf/util/bpf_lock_contention.c @@ -299,8 +299,10 @@ int lock_contention_read(struct lock_contention *con) if (con->save_callstack) { bpf_map_lookup_elem(stack, &key.stack_id, stack_trace); - if (!match_callstack_filter(machine, stack_trace)) + if (!match_callstack_filter(machine, stack_trace)) { + con->nr_filtered += data.count; goto next; + } } switch (con->aggr_mode) { diff --git a/tools/perf/util/lock-contention.h b/tools/perf/util/lock-contention.h index 3ed1cad370fc..fa16532c971c 100644 --- a/tools/perf/util/lock-contention.h +++ b/tools/perf/util/lock-contention.h @@ -141,6 +141,7 @@ struct lock_contention { int stack_skip; int aggr_mode; int owner; + int nr_filtered; bool save_callstack; }; |