linux-kernel - Re: [PATCH] ftracetest: replace usleep by sleep

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Message-ID: <20150326094226.0b0986d8@gandalf.local.home>
Date:	Thu, 26 Mar 2015 09:42:26 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Pádraig Brady <P@...igBrady.com>
Cc:	Luis Henriques <luis.henriques@...onical.com>,
	Shuah Khan <shuahkh@....samsung.com>,
	Namhyung Kim <namhyung@...nel.org>,
	linux-kernel@...r.kernel.org,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Subject: Re: [PATCH] ftracetest: replace usleep by sleep

On Thu, 26 Mar 2015 02:50:50 +0000
Pádraig Brady <P@...igBrady.com> wrote:

> >>  echo 'sched:sched_switch' > set_event
> >> -usleep 1
> >> +sleep 0.001
> > 
> > We had patches out about this, because sleep 0.001 is not always
> > supported either.
> 
> really?
> In that edge case you might:

It's not too much of an edge case, as it is busybox that has issue.

-- Steve

> 
>   sleep .001 || sleep 1
> 
> Pádraig.

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