Re: sched_yield() makes OpenLDAP slow

[Robert Hancock]

linux-os (Dick Johnson) wrote:
> I reported thet sched_yield() wasn't working (at least as expected)
> back in March of 2004.
>
>  		for(;;)
>                      sched_yield();
>
> ... takes 100% CPU time as reported by `top`. It should take
> practically 0. Somebody said that this was because `top` was
> broken, others said that it was because I didn't know how to
> code. Nevertheless, the problem was not fixed, even after
> schedular changes were made for the current version.

This is what I would expect if run on an otherwise idle machine. 
sched_yield just puts you at the back of the line for runnable 
processes, it doesn't magically cause you to go to sleep somehow.

--
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@xxxxxxxxxxxxx
Home Page: http://www.roberthancock.com/

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