Hi,
(2014/12/10 17:19), Namhyung Kim wrote:
> Hi Michael,
>
> On Wed, Dec 10, 2014 at 1:38 PM, Michael Ellerman <[email protected]> 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.
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
Thank you,
--
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Research Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
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