linux-kernel - Re: [PATCH v3] ftracetest: Do not use usleep directly

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Date:	Fri, 03 Apr 2015 09:26:16 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	Namhyung Kim <namhyung@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>
CC:	LKML <linux-kernel@...r.kernel.org>,
	Pádraig Brady <P@...igBrady.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Dave Jones <davej@...emonkey.org.uk>,
	Luis Henriques <luis.henriques@...onical.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH v3] ftracetest: Do not use usleep directly

On 04/02/2015 06:27 PM, Namhyung Kim wrote:
> The usleep is only provided on distros from Redhat so running ftracetest
> on other distro resulted in failures due to the missing usleep.
> 
> The reason of using [u]sleep in the test was to generate (scheduler)
> events.  It can be done various ways like this:
> 
> yield() {  ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1; }
> 
> For more information to the history of this patch, please refer to:
> 
> Link: http://lkml.kernel.org/r/1427329943-16896-1-git-send-email-namhyung@kernel.org
> 
> Reported-by: Michael Ellerman <mpe@...erman.id.au>
> Reported-by: Dave Jones <davej@...emonkey.org.uk>
> Reported-by: Luis Henriques <luis.henriques@...onical.com>
> Suggested-by: Pádraig Brady <P@...igBrady.com>
> Acked-by: Steven Rostedt <rostedt@...dmis.org>
> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---

Thanks for getting to this quickly. Applied it to
linux-kselftest next for 4.1

thanks,
-- Shuah

-- 
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@....samsung.com | (970) 217-8978
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