From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>, Andrii Nakryiko <andriin@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@chromium.org>, Kajol Jain <kjain@linux.ibm.com>,
Andi Kleen <ak@linux.intel.com>,
John Garry <john.garry@huawei.com>,
Jin Yao <yao.jin@linux.intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
Kim Phillips <kim.phillips@amd.com>,
linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
linux-perf-users@vger.kernel.org,
Vince Weaver <vincent.weaver@maine.edu>,
Stephane Eranian <eranian@google.com>,
Ian Rogers <irogers@google.com>
Subject: [RFC PATCH v3 11/14] perf metricgroup: delay events string creation
Date: Thu, 7 May 2020 22:36:26 -0700 [thread overview]
Message-ID: <20200508053629.210324-12-irogers@google.com> (raw)
In-Reply-To: <20200508053629.210324-1-irogers@google.com>
Currently event groups are placed into groups_list at the same time as
the events string containing the events is built. Separate these two
operations and build the groups_list first, then the event string from
the groups_list. This adds an ability to reorder the groups_list that
will be used in a later patch.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/metricgroup.c | 38 +++++++++++++++++++++++------------
1 file changed, 25 insertions(+), 13 deletions(-)
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 2c684fd3c4e3..2a6456fa178b 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -90,6 +90,7 @@ struct egroup {
const char *metric_expr;
const char *metric_unit;
int runtime;
+ bool has_constraint;
};
static struct evsel *find_evsel_group(struct evlist *perf_evlist,
@@ -497,8 +498,8 @@ int __weak arch_get_runtimeparam(void)
return 1;
}
-static int __metricgroup__add_metric(struct strbuf *events,
- struct list_head *group_list, struct pmu_event *pe, int runtime)
+static int __metricgroup__add_metric(struct list_head *group_list,
+ struct pmu_event *pe, int runtime)
{
struct egroup *eg;
@@ -511,6 +512,7 @@ static int __metricgroup__add_metric(struct strbuf *events,
eg->metric_expr = pe->metric_expr;
eg->metric_unit = pe->unit;
eg->runtime = runtime;
+ eg->has_constraint = metricgroup__has_constraint(pe);
if (expr__find_other(pe->metric_expr, NULL, &eg->pctx, runtime) < 0) {
expr__ctx_clear(&eg->pctx);
@@ -518,14 +520,6 @@ static int __metricgroup__add_metric(struct strbuf *events,
return -EINVAL;
}
- if (events->len > 0)
- strbuf_addf(events, ",");
-
- if (metricgroup__has_constraint(pe))
- metricgroup__add_metric_non_group(events, &eg->pctx);
- else
- metricgroup__add_metric_weak_group(events, &eg->pctx);
-
list_add_tail(&eg->nd, group_list);
return 0;
@@ -536,6 +530,7 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
{
struct pmu_events_map *map = perf_pmu__find_map(NULL);
struct pmu_event *pe;
+ struct egroup *eg;
int i, ret = -EINVAL;
if (!map)
@@ -554,7 +549,8 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
if (!strstr(pe->metric_expr, "?")) {
- ret = __metricgroup__add_metric(events, group_list, pe, 1);
+ ret = __metricgroup__add_metric(group_list,
+ pe, 1);
} else {
int j, count;
@@ -565,13 +561,29 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
* those events to group_list.
*/
- for (j = 0; j < count; j++)
- ret = __metricgroup__add_metric(events, group_list, pe, j);
+ for (j = 0; j < count; j++) {
+ ret = __metricgroup__add_metric(
+ group_list, pe, j);
+ }
}
if (ret == -ENOMEM)
break;
}
}
+ if (!ret) {
+ list_for_each_entry(eg, group_list, nd) {
+ if (events->len > 0)
+ strbuf_addf(events, ",");
+
+ if (eg->has_constraint) {
+ metricgroup__add_metric_non_group(events,
+ &eg->pctx);
+ } else {
+ metricgroup__add_metric_weak_group(events,
+ &eg->pctx);
+ }
+ }
+ }
return ret;
}
--
2.26.2.645.ge9eca65c58-goog
next prev parent reply other threads:[~2020-05-08 5:37 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-08 5:36 [RFC PATCH v3 00/14] Share events between metrics Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 01/14] perf parse-events: expand add PMU error/verbose messages Ian Rogers
2020-05-09 0:14 ` Andi Kleen
2020-05-08 5:36 ` [RFC PATCH v3 02/14] perf test: improve pmu event metric testing Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 03/14] lib/bpf hashmap: increase portability Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 04/14] libbpf: Fix memory leak and possible double-free in hashmap__clear Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 05/14] perf expr: fix memory leaks in bison Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 06/14] perf evsel: fix 2 memory leaks Ian Rogers
2020-05-09 0:39 ` Andi Kleen
2020-05-09 0:41 ` Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 07/14] perf expr: migrate expr ids table to libbpf's hashmap Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 08/14] perf metricgroup: change evlist_used to a bitmap Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 09/14] perf metricgroup: free metric_events on error Ian Rogers
2020-05-21 17:07 ` Arnaldo Carvalho de Melo
2020-05-08 5:36 ` [RFC PATCH v3 10/14] perf metricgroup: always place duration_time last Ian Rogers
2020-05-08 5:36 ` Ian Rogers [this message]
2020-05-08 5:36 ` [RFC PATCH v3 12/14] perf metricgroup: order event groups by size Ian Rogers
2020-05-09 0:25 ` Andi Kleen
2020-05-09 0:40 ` Ian Rogers
2020-05-09 2:40 ` Andi Kleen
2020-05-20 7:46 ` Ian Rogers
2020-05-08 5:36 ` [RFC PATCH v3 13/14] perf metricgroup: remove duped metric group events Ian Rogers
2020-05-09 0:38 ` Andi Kleen
2020-05-08 5:36 ` [RFC PATCH v3 14/14] perf metricgroup: add options to not group or merge Ian Rogers
2020-05-09 0:12 ` [RFC PATCH v3 00/14] Share events between metrics Andi Kleen
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