From: Frederic Weisbecker on
On Wed, May 12, 2010 at 10:40:01AM +0200, Stephane Eranian wrote:
> By default, event inheritance across fork and pthread_create was
> on but the -i option of stat and record, which enabled inheritance,
> led to believe it was off by default.
> This patch fixes this logic by inverting the meaning of the -i option.
> By default inheritance is on whether you attach to a process (-p), a
> thread (-t) or start a process. If you pass -i, then you turn off
> inheritance. Turning off inheritance if you don't need it, helps
> limit perf resource usage as well.
> The patch also fixes perf stat -t xxxx and perf record -t xxxx
> which did not start the counters.
> Signed-off-by: Stephane Eranian <eranian(a)>

Acked-by: Frederic Weisbecker <fweisbec(a)>

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)
More majordomo info at
Please read the FAQ at