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-shadow.c | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/stat-shadow.c') diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 83d8094be4fe..027b09aaa4cf 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -12,6 +12,7 @@ /* * AGGR_GLOBAL: Use CPU 0 * AGGR_SOCKET: Use first CPU of socket + * AGGR_DIE: Use first CPU of die * AGGR_CORE: Use first CPU of core * AGGR_NONE: Use matching CPU * AGGR_THREAD: Not supported? -- cgit v1.2.3