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From: "Pádraig Brady" <P@draigBrady.com>
To: abhishek agarwal <abhigem.126@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [Perf] Adding timeout option
Date: Fri, 19 Oct 2012 13:28:40 -0700	[thread overview]
Message-ID: <5081B7F8.7040302@draigBrady.com> (raw)
In-Reply-To: <CAMjzKwXZLGX7EM7dVOHWcN-8Ay40bbhiR4v5M352Xd2g2uHY1g@mail.gmail.com>

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.

  reply	other threads:[~2012-10-20 16:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-13 15:54 [Perf] Adding timeout option abhishek agarwal
2012-10-19 20:28 ` Pádraig Brady [this message]
2012-10-21  4:18   ` abhishek agarwal
2012-10-22 11:02     ` Pádraig Brady

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