diff options
| -rw-r--r-- | tools/perf/builtin-lock.c | 68 | ||||
| -rwxr-xr-x | tools/perf/tests/shell/lock_contention.sh | 15 |
2 files changed, 60 insertions, 23 deletions
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index 6f79175365a8..0d280093b19a 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -1390,6 +1390,34 @@ static int dump_info(void) return rc; } +static const struct evsel_str_handler lock_tracepoints[] = { + { "lock:lock_acquire", evsel__process_lock_acquire, }, /* CONFIG_LOCKDEP */ + { "lock:lock_acquired", evsel__process_lock_acquired, }, /* CONFIG_LOCKDEP, CONFIG_LOCK_STAT */ + { "lock:lock_contended", evsel__process_lock_contended, }, /* CONFIG_LOCKDEP, CONFIG_LOCK_STAT */ + { "lock:lock_release", evsel__process_lock_release, }, /* CONFIG_LOCKDEP */ +}; + +static const struct evsel_str_handler contention_tracepoints[] = { + { "lock:contention_begin", evsel__process_contention_begin, }, + { "lock:contention_end", evsel__process_contention_end, }, +}; + +static int process_event_update(struct perf_tool *tool, + union perf_event *event, + struct evlist **pevlist) +{ + int ret; + + ret = perf_event__process_event_update(tool, event, pevlist); + if (ret < 0) + return ret; + + /* this can return -EEXIST since we call it for each evsel */ + perf_session__set_tracepoints_handlers(session, lock_tracepoints); + perf_session__set_tracepoints_handlers(session, contention_tracepoints); + return 0; +} + typedef int (*tracepoint_handler)(struct evsel *evsel, struct perf_sample *sample); @@ -1545,28 +1573,19 @@ next: print_bad_events(bad, total); } -static const struct evsel_str_handler lock_tracepoints[] = { - { "lock:lock_acquire", evsel__process_lock_acquire, }, /* CONFIG_LOCKDEP */ - { "lock:lock_acquired", evsel__process_lock_acquired, }, /* CONFIG_LOCKDEP, CONFIG_LOCK_STAT */ - { "lock:lock_contended", evsel__process_lock_contended, }, /* CONFIG_LOCKDEP, CONFIG_LOCK_STAT */ - { "lock:lock_release", evsel__process_lock_release, }, /* CONFIG_LOCKDEP */ -}; - -static const struct evsel_str_handler contention_tracepoints[] = { - { "lock:contention_begin", evsel__process_contention_begin, }, - { "lock:contention_end", evsel__process_contention_end, }, -}; - static bool force; static int __cmd_report(bool display_info) { int err = -EINVAL; struct perf_tool eops = { + .attr = perf_event__process_attr, + .event_update = process_event_update, .sample = process_sample_event, .comm = perf_event__process_comm, .mmap = perf_event__process_mmap, .namespaces = perf_event__process_namespaces, + .tracing_data = perf_event__process_tracing_data, .ordered_events = true, }; struct perf_data data = { @@ -1585,17 +1604,19 @@ static int __cmd_report(bool display_info) symbol_conf.sort_by_name = true; symbol__init(&session->header.env); - if (!perf_session__has_traces(session, "lock record")) - goto out_delete; + if (!data.is_pipe) { + if (!perf_session__has_traces(session, "lock record")) + goto out_delete; - if (perf_session__set_tracepoints_handlers(session, lock_tracepoints)) { - pr_err("Initializing perf session tracepoint handlers failed\n"); - goto out_delete; - } + if (perf_session__set_tracepoints_handlers(session, lock_tracepoints)) { + pr_err("Initializing perf session tracepoint handlers failed\n"); + goto out_delete; + } - if (perf_session__set_tracepoints_handlers(session, contention_tracepoints)) { - pr_err("Initializing perf session tracepoint handlers failed\n"); - goto out_delete; + if (perf_session__set_tracepoints_handlers(session, contention_tracepoints)) { + pr_err("Initializing perf session tracepoint handlers failed\n"); + goto out_delete; + } } if (setup_output_field(false, output_fields)) @@ -1633,9 +1654,12 @@ static int __cmd_contention(int argc, const char **argv) { int err = -EINVAL; struct perf_tool eops = { + .attr = perf_event__process_attr, + .event_update = process_event_update, .sample = process_sample_event, .comm = perf_event__process_comm, .mmap = perf_event__process_mmap, + .tracing_data = perf_event__process_tracing_data, .ordered_events = true, }; struct perf_data data = { @@ -1698,7 +1722,7 @@ static int __cmd_contention(int argc, const char **argv) pr_err("lock contention BPF setup failed\n"); goto out_delete; } - } else { + } else if (!data.is_pipe) { if (!perf_session__has_traces(session, "lock record")) goto out_delete; diff --git a/tools/perf/tests/shell/lock_contention.sh b/tools/perf/tests/shell/lock_contention.sh index 04bf604e3c6f..f7bd0d8eb5c3 100755 --- a/tools/perf/tests/shell/lock_contention.sh +++ b/tools/perf/tests/shell/lock_contention.sh @@ -53,7 +53,7 @@ test_bpf() if ! perf lock con -b true > /dev/null 2>&1 ; then echo "[Skip] No BPF support" - exit + return fi # the perf lock contention output goes to the stderr @@ -65,9 +65,22 @@ test_bpf() fi } +test_record_concurrent() +{ + echo "Testing perf lock record and perf lock contention at the same time" + perf lock record -o- -- perf bench sched messaging 2> /dev/null | \ + perf lock contention -i- -E 1 -q 2> ${result} + if [ $(cat "${result}" | wc -l) != "1" ]; then + echo "[Fail] Recorded result count is not 1:" $(cat "${result}" | wc -l) + err=1 + exit + fi +} + check test_record test_bpf +test_record_concurrent exit ${err} |