Bug 466427 - Significant regression in time() performance
Significant regression in time() performance
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
urgent Severity high
: rc
: ---
Assigned To: Jiri Pirko
Martin Jenner
: Regression, Reopened, ZStream
Depends On: 461184
  Show dependency treegraph
Reported: 2008-10-10 04:08 EDT by RHEL Product and Program Management
Modified: 2015-05-04 21:15 EDT (History)
11 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2008-11-04 05:29:54 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description RHEL Product and Program Management 2008-10-10 04:08:02 EDT
This bug has been copied from bug #461184 and has been proposed
to be backported to 5.2 z-stream (EUS).
Comment 2 RHEL Product and Program Management 2008-10-10 04:39:57 EDT
This bugzilla has Keywords: Regression.  

Since no regressions are allowed between releases, 
it is also being proposed as a blocker for this release.  

Please resolve ASAP.
Comment 3 Jay Turner 2008-10-10 06:36:44 EDT
Guys, I'm a little confused why this fix is being proposed for z-stream.  The change which caused the problem was introduced into the 2.6.18-98.el5 kernel (i.e. well after the z-stream kernel.)  There's nothing to "fix" in the 92.1.13.el5 kernel.
Comment 4 Jiri Skrabal 2008-10-10 07:21:41 EDT
Jay, thanks for clarification. Closing the bug.
Comment 5 Jiri Pirko 2008-10-10 11:24:20 EDT
Jay, we need this patch to correct the bug previously done by linux-2.6-x86_64-gettimeofday-fixes-for-hpet-pmtimer-tsc.patch (bz250708). So basically we will bring the bug with mentioned patch and we will fix it by this in the same build. I think it's the best way to solve this issue.
Comment 6 Don Howard 2008-10-10 11:30:18 EDT
Hi Jiri, Jay -

This is related to bz 462860 (5.2.z).  We need both patches together.
Comment 7 Jay Turner 2008-10-10 12:39:44 EDT
OK, now I understand.  Just didn't want people doing needless work.
Comment 8 Jiri Pirko 2008-10-13 09:50:42 EDT
in kernel-2.6.18-92.1.15.el5

you can download RPMs from http://people.redhat.com/jpirko/.el52z/92.1.15/
Comment 12 errata-xmlrpc 2008-11-04 05:29:54 EST
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


Note You need to log in before you can comment on or make changes to this bug.