linux-kernel - Re: [PATCH v3 2/2] perf stat: add interval printing

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Date:	Sat, 19 Jan 2013 00:03:05 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	Andi Kleen <ak@...ux.intel.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH v3 2/2] perf stat: add interval printing

On Fri, Jan 18, 2013 at 7:30 PM, Andi Kleen <ak@...ux.intel.com> wrote:
>>       if (forks) {
>>               close(go_pipe[1]);
>> +             if (interval) {
>> +                     while (!waitpid(child_pid, &status, WNOHANG)) {
>> +                             ret = nanosleep(&ts, NULL);
>> +                             if (ret == 0 && interval)
>> +                                     print_interval();
>
> It would be good to make sure that if someone Ctrl-Cs
> you still print the latest interval(even if shorter)
>
Ok, I can remove the test. The interval is redundant here anyway.
Will post V4 shortly.
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