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Bug 472818 - reassess the default I/O scheduler for RHEL
Summary: reassess the default I/O scheduler for RHEL
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Jeff Moyer
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-11-24 20:32 UTC by Jeff Moyer
Modified: 2010-11-11 14:41 UTC (History)
5 users (show)

Fixed In Version: 2.6.32-18.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-11-11 14:41:37 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)

Description Jeff Moyer 2008-11-24 20:32:14 UTC
Description of problem:

The default I/O scheduler for the kernel is cfq, and RHEL inherits this.  Let's reassess this based on performance numbers in a variety of workloads that our customers care about.

Comment 1 RHEL Program Management 2009-06-15 21:02:08 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

Comment 6 Mike Gahagan 2010-08-24 21:13:33 UTC
cfq is the default IO scheduler in 6.0. Performance and scheduling issues that have come are being handled by separate bugs so I think we can go ahead and verify this one.

Comment 7 releng-rhel@redhat.com 2010-11-11 14:41:37 UTC
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.


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