From db5742b6849ed7f01d764e6755b8ab2b422f29b2 Mon Sep 17 00:00:00 2001 From: Kan Liang Date: Tue, 4 Jun 2019 15:50:42 -0700 Subject: perf stat: Support per-die aggregation It is useful to aggregate counts per die. E.g. Uncore becomes die-scope on Xeon Cascade Lake-AP. Introduce a new option "--per-die" to support per-die aggregation. The global id for each core has been changed to socket + die id + core id. The global id for each die is socket + die id. Add die information for per-core aggregation. The output of per-core aggregation will be changed from "S0-C0" to "S0-D0-C0". Any scripts which rely on the output format of per-core aggregation probably be broken. For 'perf stat record/report', there is no die information when processing the old perf.data. The per-die result will be the same as per-socket. Committer notes: Renamed 'die' variable to 'die_id' to fix the build in some systems: CC /tmp/build/perf/builtin-script.o cc1: warnings being treated as errors builtin-stat.c: In function 'perf_env__get_die': builtin-stat.c:963: error: declaration of 'die' shadows a global declaration util/util.h:19: error: shadowed declaration is here mv: cannot stat `/tmp/build/perf/.builtin-stat.o.tmp': No such file or directory Signed-off-by: Kan Liang Reviewed-by: Jiri Olsa Cc: Andi Kleen Cc: Peter Zijlstra Link: https://lkml.kernel.org/n/tip-bsnhx7vgsuu6ei307mw60mbj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/stat.c | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/stat.c') diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index c3115d939b0b..d91fe754b6d2 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -272,6 +272,7 @@ process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel switch (config->aggr_mode) { case AGGR_THREAD: case AGGR_CORE: + case AGGR_DIE: case AGGR_SOCKET: case AGGR_NONE: if (!evsel->snapshot) -- cgit v1.2.3