Re: [Perf] Adding timeout option

[Pádraig Brady]

On 10/13/2012 08:54 AM, abhishek agarwal wrote:
> Hi folks..
>
> I was thinking that why cant we have a timeout option in perf stat
> command.  The timeout feature will help us to profile a process for a
> stipulated time (preferably in millisecs) and make perf stat return
> after that time.
> Eg:
>
> perf stat --timeout=10 sleep 100
>
> This will make perf return and report stats after 10 ms...
>
> Hope anyone can shed some more light on the idea

It seems preferable to use the timeout program to do this.
Either sending a handled signal to the perf process like:

    timeout -s HUP 10 perf stat sleep 100

Or even better, just use that to kill the monitored process itself

    perf stat timeout 10 sleep 100

cheers,
Pádraig.
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