lkml.org 
[lkml]   [2009]   [Feb]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Bugme-new] [Bug 12562] New: High overhead while switching or synchronizing threads on different cores
From Valdis.Kletnieks@vt ...
DateMon, 02 Feb 2009 22:56:49 -0500
On Mon, 02 Feb 2009 08:43:55 +0100, Thomas Pilarski said:
> Am Freitag, den 30.01.2009, 08:57 +0100 schrieb Mike Galbraith:
> > One of those "don't _ever_ do that" things?
>
> I did not known random() uses a system call. It's rather unrealistic to
> have five million system calls in a second. By adding a small loop with
> some calculations near the random, the problem disappears too.
> It is a unlucky chosen data generator.

Am I the only one that's scared by the concept of anything that beats
on random numbers enough to need 5 million of them a second, but is still
using the relatively sucky one that's in most glibc's? :)

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2009-02-03 05:01    [from the cache]
©2003-2010