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Date: Fri, 6 May 2022 22:34:09 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Riccardo Mancini <rickyman7@...il.com>,
Kim Phillips <kim.phillips@....com>,
Madhavan Srinivasan <maddy@...ux.ibm.com>,
Shunsuke Nakamura <nakamura.shun@...itsu.com>,
Florian Fischer <florian.fischer@...q.space>,
Andi Kleen <ak@...ux.intel.com>,
John Garry <john.garry@...wei.com>,
Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
Adrian Hunter <adrian.hunter@...el.com>,
James Clark <james.clark@....com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: [PATCH 4/5] perf metrics: Support all tool events
Previously duration_time was hard coded, which was ok until
commit b03b89b35003 ("perf stat: Add user_time and system_time events")
added additional tool events. Do for all tool events what was previously
done just for duration_time.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/util/metricgroup.c | 87 ++++++++++++++++++++---------------
tools/perf/util/stat-shadow.c | 27 +++++++++--
2 files changed, 75 insertions(+), 39 deletions(-)
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index d8492e339521..7a5f488aef02 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -728,22 +728,23 @@ static int metricgroup__build_event_string(struct strbuf *events,
{
struct hashmap_entry *cur;
size_t bkt;
- bool no_group = true, has_duration = false;
+ bool no_group = true, has_tool_events = false;
+ bool tool_events[PERF_TOOL_MAX] = {false};
int ret = 0;
#define RETURN_IF_NON_ZERO(x) do { if (x) return x; } while (0)
hashmap__for_each_entry(ctx->ids, cur, bkt) {
const char *sep, *rsep, *id = cur->key;
+ enum perf_tool_event ev;
pr_debug("found event %s\n", id);
- /*
- * Duration time maps to a software event and can make
- * groups not count. Always use it outside a
- * group.
- */
- if (!strcmp(id, "duration_time")) {
- has_duration = true;
+
+ /* Always move tool events outside of the group. */
+ ev = perf_tool_event__from_str(id);
+ if (ev != PERF_TOOL_NONE) {
+ has_tool_events = true;
+ tool_events[ev] = true;
continue;
}
/* Separate events with commas and open the group if necessary. */
@@ -802,16 +803,25 @@ static int metricgroup__build_event_string(struct strbuf *events,
RETURN_IF_NON_ZERO(ret);
}
}
- if (has_duration) {
- if (no_group) {
- /* Strange case of a metric of just duration_time. */
- ret = strbuf_addf(events, "duration_time");
- } else if (!has_constraint)
- ret = strbuf_addf(events, "}:W,duration_time");
- else
- ret = strbuf_addf(events, ",duration_time");
- } else if (!no_group && !has_constraint)
+ if (!no_group && !has_constraint) {
ret = strbuf_addf(events, "}:W");
+ RETURN_IF_NON_ZERO(ret);
+ }
+ if (has_tool_events) {
+ int i;
+
+ perf_tool_event__for_each_event(i) {
+ if (tool_events[i]) {
+ if (!no_group) {
+ ret = strbuf_addch(events, ',');
+ RETURN_IF_NON_ZERO(ret);
+ }
+ no_group = false;
+ ret = strbuf_addstr(events, perf_tool_event__to_str(i));
+ RETURN_IF_NON_ZERO(ret);
+ }
+ }
+ }
return ret;
#undef RETURN_IF_NON_ZERO
@@ -1117,7 +1127,7 @@ static int metricgroup__add_metric_sys_event_iter(const struct pmu_event *pe,
/**
* metric_list_cmp - list_sort comparator that sorts metrics with more events to
- * the front. duration_time is excluded from the count.
+ * the front. tool events are excluded from the count.
*/
static int metric_list_cmp(void *priv __maybe_unused, const struct list_head *l,
const struct list_head *r)
@@ -1125,15 +1135,19 @@ static int metric_list_cmp(void *priv __maybe_unused, const struct list_head *l,
const struct metric *left = container_of(l, struct metric, nd);
const struct metric *right = container_of(r, struct metric, nd);
struct expr_id_data *data;
- int left_count, right_count;
+ int i, left_count, right_count;
left_count = hashmap__size(left->pctx->ids);
- if (!expr__get_id(left->pctx, "duration_time", &data))
- left_count--;
+ perf_tool_event__for_each_event(i) {
+ if (!expr__get_id(left->pctx, perf_tool_event__to_str(i), &data))
+ left_count--;
+ }
right_count = hashmap__size(right->pctx->ids);
- if (!expr__get_id(right->pctx, "duration_time", &data))
- right_count--;
+ perf_tool_event__for_each_event(i) {
+ if (!expr__get_id(right->pctx, perf_tool_event__to_str(i), &data))
+ right_count--;
+ }
return right_count - left_count;
}
@@ -1331,26 +1345,27 @@ static int parse_ids(bool metric_no_merge, struct perf_pmu *fake_pmu,
*out_evlist = NULL;
if (!metric_no_merge || hashmap__size(ids->ids) == 0) {
- char *tmp;
+ int i;
/*
- * We may fail to share events between metrics because
- * duration_time isn't present in one metric. For example, a
- * ratio of cache misses doesn't need duration_time but the same
- * events may be used for a misses per second. Events without
- * sharing implies multiplexing, that is best avoided, so place
- * duration_time in every group.
+ * We may fail to share events between metrics because a tool
+ * event isn't present in one metric. For example, a ratio of
+ * cache misses doesn't need duration_time but the same events
+ * may be used for a misses per second. Events without sharing
+ * implies multiplexing, that is best avoided, so place
+ * all tool events in every group.
*
* Also, there may be no ids/events in the expression parsing
* context because of constant evaluation, e.g.:
* event1 if #smt_on else 0
- * Add a duration_time event to avoid a parse error on an empty
- * string.
+ * Add a tool event to avoid a parse error on an empty string.
*/
- tmp = strdup("duration_time");
- if (!tmp)
- return -ENOMEM;
+ perf_tool_event__for_each_event(i) {
+ char *tmp = strdup(perf_tool_event__to_str(i));
- ids__insert(ids->ids, tmp);
+ if (!tmp)
+ return -ENOMEM;
+ ids__insert(ids->ids, tmp);
+ }
}
ret = metricgroup__build_event_string(&events, ids, modifier,
has_constraint);
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index ea4c35e4f1da..979c8cb918f7 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -833,10 +833,31 @@ static int prepare_metric(struct evsel **metric_events,
u64 metric_total = 0;
int source_count;
- if (!strcmp(metric_events[i]->name, "duration_time")) {
- stats = &walltime_nsecs_stats;
- scale = 1e-9;
+ if (evsel__is_tool(metric_events[i])) {
source_count = 1;
+ switch (metric_events[i]->tool_event) {
+ case PERF_TOOL_DURATION_TIME:
+ stats = &walltime_nsecs_stats;
+ scale = 1e-9;
+ break;
+ case PERF_TOOL_USER_TIME:
+ stats = &ru_stats.ru_utime_usec_stat;
+ scale = 1e-6;
+ break;
+ case PERF_TOOL_SYSTEM_TIME:
+ stats = &ru_stats.ru_stime_usec_stat;
+ scale = 1e-6;
+ break;
+ case PERF_TOOL_NONE:
+ pr_err("Invalid tool event 'none'");
+ abort();
+ case PERF_TOOL_MAX:
+ pr_err("Invalid tool event 'max'");
+ abort();
+ default:
+ pr_err("Unknown tool event '%s'", evsel__name(metric_events[i]));
+ abort();
+ }
} else {
v = saved_value_lookup(metric_events[i], cpu_map_idx, false,
STAT_NONE, 0, st,
--
2.36.0.512.ge40c2bad7a-goog
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