Home
Reading
Searching
Subscribe
Sponsors
Statistics
Posting
Contact
Spam
Lists
Links
About
Hosting
Filtering
Features Download
Marketing
Archives
FAQ
Blog
 
Gmane
From: Zhang, Yanmin <yanmin_zhang <at> linux.intel.com>
Subject: AIM7 40% regression with 2.6.26-rc1
Newsgroups: gmane.linux.kernel
Date: Tuesday 6th May 2008 05:48:24 UTC (over 8 years ago)
Comparing with kernel 2.6.25, AIM7 (use tmpfs) has more than 40% with
2.6.26-rc1
on my 8-core stoakley, 16-core tigerton, and Itanium Montecito. Bisect
located
below patch.

64ac24e738823161693bf791f87adc802cf529ff is first bad commit
commit 64ac24e738823161693bf791f87adc802cf529ff
Author: Matthew Wilcox 
Date:   Fri Mar 7 21:55:58 2008 -0500

    Generic semaphore implementation


After I manually reverted the patch against 2.6.26-rc1 while fixing lots of
conflictions/errors, aim7 regression became less than 2%.

-yanmin
 
CD: 3ms