Bug 712252 - vmscan: correctly check if reclaimer should schedule during shrink_slab
Summary: vmscan: correctly check if reclaimer should schedule during shrink_slab
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.2
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Andrea Arcangeli
QA Contact: Caspar Zhang
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-06-09 23:25 UTC by Andrea Arcangeli
Modified: 2013-07-03 07:30 UTC (History)
5 users (show)

Fixed In Version: kernel-2.6.32-169.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-12-06 13:38:28 UTC
Target Upstream Version:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:1530 0 normal SHIPPED_LIVE Moderate: Red Hat Enterprise Linux 6 kernel security, bug fix and enhancement update 2011-12-06 01:45:35 UTC

Description Andrea Arcangeli 2011-06-09 23:25:41 UTC 
Description of problem: It has been reported on some laptops that kswapd is consuming large amounts of CPU and not being scheduled when SLUB is enabled during large amounts of file copying.


Version-Release number of selected component (if applicable):


How reproducible: not clear


Steps to Reproduce:
1. run a large amount of small file copying
2.
3.
  
Actual results: higher kswapd utilization


Expected results: lower kswapd untilization and better latency


Additional info:
Comment 2 RHEL Program Management 2011-06-13 09:29:54 UTC 
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has 
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed 
products. This request is not yet committed for inclusion in an Update release.
Comment 3 Aristeu Rozanski 2011-07-18 15:27:54 UTC 
Patch(es) available on kernel-2.6.32-169.el6
Comment 7 errata-xmlrpc 2011-12-06 13:38:28 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2011-1530.html
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