lkml.org 
[lkml]   [2002]   [Jan]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRE: smp cputime issues
On Tue, 1 Jan 2002, M. Edward Borasky wrote:
> The obvious question is: how do the printed *elapsed* (wall clock) times
> compare with a stopwatch timing of the same run??

sorry,

should have included that all timings are consistent.
(usr/sys vs reported wall clock time vs external stop watch time)

for reference: the effect arises for a several different memory types
(pc133, pc133 ecc, pc133 reg ecc, pc2100) and the impact is similar.
thus if it was only a memory bandwidth issue, i would expect
the results to depend more on the memory/chipset in question.

regards,
--
Steinar Hauan, dept of ChemE -- hauan@cmu.edu
Carnegie Mellon University, Pittsburgh PA, USA

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:18    [W:0.065 / U:0.904 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site