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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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10
tools/perf/util/top.c
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@@ -69,11 +69,11 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
ret += SNPRINTF(bf + ret, size - ret, "], ");
if (top->target_pid != -1)
ret += SNPRINTF(bf + ret, size - ret, " (target_pid: %d",
if (top->target_pid)
ret += SNPRINTF(bf + ret, size - ret, " (target_pid: %s",
top->target_pid);
else if (top->target_tid != -1)
ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %d",
else if (top->target_tid)
ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %s",
top->target_tid);
else if (top->uid_str != NULL)
ret += SNPRINTF(bf + ret, size - ret, " (uid: %s",
@@ -85,7 +85,7 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
ret += SNPRINTF(bf + ret, size - ret, ", CPU%s: %s)",
top->evlist->cpus->nr > 1 ? "s" : "", top->cpu_list);
else {
if (top->target_tid != -1)
if (top->target_tid)
ret += SNPRINTF(bf + ret, size - ret, ")");
else
ret += SNPRINTF(bf + ret, size - ret, ", %d CPU%s)",