lkml.org 
[lkml]   [2005]   [Jun]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: Update: Industry db benchmark result
Date
Andi Kleen wrote on Wednesday, June 22, 2005 4:44 PM
> "Chen, Kenneth W" <kenneth.w.chen@intel.com> writes:
> >
> > It's been hovering around -13%.
>
> Do you have an educated guess where the 13% loss is comming from?

Process scheduler is the prime suspect. Earlier scheduler experiments
on top of 2.6.11 showed that it was about 10% regression. Similar
experiments repeated on top of 2.6.12-rc4 indicated about a much
smaller 4%. Other area are O_DIRECT (2%), and possibly scsi.

- Ken

-
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: 2005-06-23 02:22    [W:0.024 / U:0.516 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site