Re: sched_yield() makes OpenLDAP slow

From: Bernardo Innocenti
Date: Wed Aug 17 2005 - 21:26:16 EST


Joseph Fannin wrote:

> The behavior of sched_yield changed for 2.6. I suppose the man
> page didn't get updated.

Now I remember reading about that on LWN or maybe KernelTraffic.
Thanks!

>>I also think OpenLDAP is wrong. First, it should be calling
>>pthread_yield() because slapd is a multithreading process
>>and it just wants to run the other threads. See:
>
> Is it possible that this problem has been noticed and fixed
> already?

The OpenLDAP 2.3.5 source still looks like this.
I've filed a report in OpenLDAP's issue tracker:

http://www.openldap.org/its/index.cgi/Incoming?id=3950;page=2

--
// Bernardo Innocenti - Develer S.r.l., R&D dept.
\X/ http://www.develer.com/

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