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authorDavid Ahern <dsahern@gmail.com>2012-02-08 09:32:52 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-02-13 22:54:11 -0200
commitb52956c961be3a04182ae7b776623531601e0fb7 (patch)
tree2f7ebf4a910dc8cd9014ac9df59f7e2441a5b034 /tools/perf/util/evlist.c
parenteca1c3e3f937307331fd1fd5ee5205e57f2131ca (diff)
perf tools: Allow multiple threads or processes in record, stat, top
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>
Diffstat (limited to 'tools/perf/util/evlist.c')
-rw-r--r--tools/perf/util/evlist.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index a57a8cfc5d90..5c61dc57d7c7 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -593,15 +593,15 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
return perf_evlist__mmap_per_cpu(evlist, prot, mask);
}
-int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid,
- pid_t target_tid, uid_t uid, const char *cpu_list)
+int perf_evlist__create_maps(struct perf_evlist *evlist, const char *target_pid,
+ const char *target_tid, uid_t uid, const char *cpu_list)
{
- evlist->threads = thread_map__new(target_pid, target_tid, uid);
+ evlist->threads = thread_map__new_str(target_pid, target_tid, uid);
if (evlist->threads == NULL)
return -1;
- if (uid != UINT_MAX || (cpu_list == NULL && target_tid != -1))
+ if (uid != UINT_MAX || (cpu_list == NULL && target_tid))
evlist->cpus = cpu_map__dummy_new();
else
evlist->cpus = cpu_map__new(cpu_list);
@@ -820,7 +820,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
exit(-1);
}
- if (!opts->system_wide && opts->target_tid == -1 && opts->target_pid == -1)
+ if (!opts->system_wide && !opts->target_tid && !opts->target_pid)
evlist->threads->map[0] = evlist->workload.pid;
close(child_ready_pipe[1]);