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author | Ian Rogers <irogers@google.com> | 2020-05-20 11:20:07 -0700 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-05-28 10:03:28 -0300 |
commit | 7f9eca51c1e8e5acc4264f960c2cdec150f597f9 (patch) | |
tree | a6ebc4b39b9af01c19f2f40870de49b7477e092b | |
parent | 908103991a9970a8e033e9f3aedd092a2c993f49 (diff) | |
download | linux-7f9eca51c1e8e5acc4264f960c2cdec150f597f9.tar.gz linux-7f9eca51c1e8e5acc4264f960c2cdec150f597f9.tar.bz2 linux-7f9eca51c1e8e5acc4264f960c2cdec150f597f9.zip |
perf metricgroup: Delay events string creation
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>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200520182011.32236-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r-- | tools/perf/util/metricgroup.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 70f3f92a3262..6247c9c808d6 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, @@ -488,8 +489,8 @@ 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; @@ -502,6 +503,7 @@ 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); @@ -509,14 +511,6 @@ 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; @@ -527,6 +521,7 @@ 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; bool has_match = false; @@ -550,7 +545,8 @@ 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); if (ret) return ret; } else { @@ -564,13 +560,26 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events, */ for (j = 0; j < count; j++) { - ret = __metricgroup__add_metric(events, group_list, pe, j); + ret = __metricgroup__add_metric( + group_list, pe, j); if (ret) return 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 0; } |