(2014/12/23 16:08), Michael Ellerman wrote: > On Tue, 2014-12-23 at 13:21 +0900, Namhyung Kim wrote: >> On Sat, Dec 20, 2014 at 05:07:25PM -0500, Steven Rostedt wrote: >>> On Sat, 20 Dec 2014 21:42:13 +0100 >>> Pavel Machek <pa...@ucw.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 <m...@ellerman.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. >> >> Right. AFAIK what ftracetest expects is a scheduler event so it >> doesn't need to be the [u]sleep. > > Would /bin/true work in that case?
As other scripts doing, just (echo "forked") would be enough. It forks sub shell and wait for that. Please check test.d/kprobe/kprobe_args.tc Thanks! -- Masami HIRAMATSU Software Platform Research Dept. Linux Technology Research Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu...@hitachi.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
