From daca23b2007595b6a48255ca08c763f56050d1c5 Mon Sep 17 00:00:00 2001 From: Jin Yao Date: Tue, 5 Mar 2019 21:05:42 +0800 Subject: perf diff: Support --cpu filter option To improve 'perf diff', implement a --cpu filter option. Multiple CPUs can be provided as a comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2. Default is to report samples on all CPUs. For example, perf diff --cpu 0,1 It only diff the samples for CPU0 and CPU1. Signed-off-by: Jin Yao Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jin Yao Cc: Kan Liang Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1551791143-10334-3-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-diff.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tools/perf/Documentation') diff --git a/tools/perf/Documentation/perf-diff.txt b/tools/perf/Documentation/perf-diff.txt index 036d65bded51..8c2c229faf50 100644 --- a/tools/perf/Documentation/perf-diff.txt +++ b/tools/perf/Documentation/perf-diff.txt @@ -163,6 +163,11 @@ OPTIONS the end of perf.data.old and analyzes the perf.data from the timestamp 3971.150589 to the end of perf.data. +--cpu:: Only diff samples for the list of CPUs provided. Multiple CPUs can + be provided as a comma-separated list with no space: 0,1. Ranges of + CPUs are specified with -: 0-2. Default is to report samples on all + CPUs. + COMPARISON ---------- The comparison is governed by the baseline file. The baseline perf.data -- cgit v1.2.3