[lkml]   [2003]   [May]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: web page on O(1) scheduler
On Wed, 2003-05-21 at 08:49, David Mosberger wrote:

> I think the web pages should be most relevant to the HPTC (high
> performance technical computing) community, since this is the
> community that is most likely affected by some of the performance
> oddities of the O(1) scheduler. Certainly anyone using OpenMP on
> Intel platforms (x86 and ia64) may want to take a look.

oh you mean the OpenMP broken behavior of calling sched_yield() in a
tight loop to implement spinlocks ?

I'd guess that instead of second guessing the runtime, they should use
the pthreads primitives which are the fastest for the platform one would
hope.. (eg futexes nowadays)
[unhandled content-type:application/pgp-signature]
 \ /
  Last update: 2005-03-22 13:35    [W:0.138 / U:1.912 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site