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

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Message-ID: <20150330212947.4648ce88@grimm.local.home>
Date:	Mon, 30 Mar 2015 21:29:47 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Pádraig Brady <P@...igBrady.com>
Cc:	Namhyung Kim <namhyung@...nel.org>,
	Shuah Khan <shuahkh@....samsung.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Dave Jones <davej@...emonkey.org.uk>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: Re: [PATCH] ftracetest: Do not use usleep

On Tue, 31 Mar 2015 02:08:06 +0100
Pádraig Brady <P@...igBrady.com> wrote:

> > I'm okay with ping though but worried if some tiny system might lack
> > the ping command..
> 
> I'd use a fallback method like:
> 
>   yield() { sleep .001 || usleep 1 || sleep 1; }
> 
> Then just s/usleep 1/yield/

yield() { ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1; } ;-)


-- Steve
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