On Thu, 2014-12-11 at 14:12 +0900, Masami Hiramatsu wrote: > Hi, > > (2014/12/10 17:19), Namhyung Kim wrote: > > Hi Michael, > > > > On Wed, Dec 10, 2014 at 1:38 PM, Michael Ellerman <m...@ellerman.id.au> > > 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. > > > > I tested it on busybox not Debian, sorry. But it seems busybox's > > sleep doesn't support floating point argument.. > > > > / # ls -l `which sleep` > > lrwxrwxrwx 1 root rooot 7 May 22 2014 /bin/sleep -> > > busybox > > > > / # sleep 0.1 > > sleep: invalid number '0.1' > > I also have same result. Basically, ftracetest should be able to run on > busybox.
Yeah OK. > So, I think we'd better check whether usleep is available, and if not, > fallback > to sleep like as below. > > if which usleep &> /dev/null; then > usleep 1 > else > sleep 0.000001 > fi Why do we need to call (u)sleep anyway? It's generally a bad sign when tests use sleep as it's asking for random timing related failures to creep in. cheers -- 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/
