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perf tools: Allow multiple threads or processes in record, stat, top

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Allow a user to collect events for multiple threads or processes
using a comma separated list.

e.g., collect data on a VM and its vhost thread:
  perf top -p 21483,21485
  perf stat -p 21483,21485 -ddd
  perf record -p 21483,21485

or monitoring vcpu threads
  perf top -t 21488,21489
  perf stat -t 21488,21489 -ddd
  perf record -t 21488,21489

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1328718772-16688-1-git-send-email-dsahern@gmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
David Ahern
2012-02-08 09:32:52 -07:00
committed by Arnaldo Carvalho de Melo
parent eca1c3e3f9
commit b52956c961
18 changed files with 185 additions and 56 deletions
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tools/perf/util/evsel.c
+1 -1
View File
@@ -130,7 +130,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts)
attr->mmap = track;
attr->comm = track;
if (opts->target_pid == -1 && opts->target_tid == -1 && !opts->system_wide) {
if (!opts->target_pid && !opts->target_tid && !opts->system_wide) {
attr->disabled = 1;
attr->enable_on_exec = 1;
}