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Date: Fri, 26 Dec 2014 00:17:25 +0100 From: Pavel Machek <pavel@....cz> To: Steven Rostedt <rostedt@...dmis.org> Cc: Michael Ellerman <mpe@...erman.id.au>, namhyung@...nel.org, masami.hiramatsu.pt@...achi.com, linux-kernel@...r.kernel.org Subject: Re: [PATCH] ftracetest: Replace usleep with sleep 0.000001 On Sat 2014-12-20 17:07:25, Steven Rostedt wrote: > On Sat, 20 Dec 2014 21:42:13 +0100 > Pavel Machek <pavel@....cz> wrote: > > > On Wed 2014-12-10 15:38:27, Michael Ellerman wrote: > > > usleep is a Fedoraism, it's not generally available on Debian based > > > systems AFAICS. > > > > > > GNU sleep accepts a floating point argument, so use that instead. > > > > > > Signed-off-by: Michael Ellerman <mpe@...erman.id.au> > > > > Could ftrace user interface be enhanced not to need random delays? > > > > Not sure what you are talking about. These "random delays" are not for > the interface, but instead to force some events to happen and to make > sure they did. > > As the subject states, this is for "ftracetest" which is the selftests > for ftrace. > > The usleep is basically a "do something to trigger events", and we > don't want to wait long in doing it. Yep, I misunderstood, sorry. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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