diff options
| author | David Ahern <dsahern@gmail.com> | 2012-02-08 09:32:52 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-02-13 22:54:11 -0200 |
| commit | b52956c961be3a04182ae7b776623531601e0fb7 (patch) | |
| tree | 2f7ebf4a910dc8cd9014ac9df59f7e2441a5b034 /tools/perf/util/usage.c | |
| parent | eca1c3e3f937307331fd1fd5ee5205e57f2131ca (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/usage.c')
| -rw-r--r-- | tools/perf/util/usage.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/usage.c b/tools/perf/util/usage.c index d0c013934f30..52bb07c6442a 100644 --- a/tools/perf/util/usage.c +++ b/tools/perf/util/usage.c @@ -83,7 +83,7 @@ void warning(const char *warn, ...) va_end(params); } -uid_t parse_target_uid(const char *str, pid_t tid, pid_t pid) +uid_t parse_target_uid(const char *str, const char *tid, const char *pid) { struct passwd pwd, *result; char buf[1024]; @@ -91,8 +91,8 @@ uid_t parse_target_uid(const char *str, pid_t tid, pid_t pid) if (str == NULL) return UINT_MAX; - /* CPU and PID are mutually exclusive */ - if (tid > 0 || pid > 0) { + /* UID and PID are mutually exclusive */ + if (tid || pid) { ui__warning("PID/TID switch overriding UID\n"); sleep(1); return UINT_MAX; |