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Bug 651809

Summary: FEAT: feature request. disable iostat collection in gendisk [rhel-5.3.z]
Product: Red Hat Enterprise Linux 5 Reporter: RHEL Program Management <pm-rhel>
Component: kernelAssignee: Jiri Pirko <jpirko>
Status: CLOSED ERRATA QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: high Docs Contact:
Priority: low    
Version: 5.3CC: chinang.ma, cward, dhoward, dzickus, jmarchan, jpirko, jplans, matthew.r.wilcox, nmurray, pm-eus, rkhan
Target Milestone: rcKeywords: FutureFeature, ZStream
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel-2.6.18-128.28.1.el5 Doc Type: Enhancement
Doc Text:
When the system was under workload, the accounting of partition input/output statistics could negatively affect the performance. This updates introduces the possibility to turn the I/O accounting off by changing the value in /sys/block/[device_name]/queue/iostats.
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-01-13 08:19:27 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 484158    
Bug Blocks:    

Description RHEL Program Management 2010-11-10 11:11:19 UTC
This bug has been copied from bug #484158 and has been proposed
to be backported to 5.3 z-stream (EUS).

Comment 4 Don Howard 2010-11-10 19:32:10 UTC
*** Bug 646908 has been marked as a duplicate of this bug. ***

Comment 8 Jiri Pirko 2010-12-01 23:15:43 UTC
in kernel-2.6.18-128.28.1.el5

linux-2.6-block-disable-iostat-collection-in-gendisk.patch
linux-2.6-block-fix-request-flags.patch

Comment 11 Jaromir Hradilek 2011-01-12 14:44:07 UTC
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
When the system was under workload, the accounting of partition input/output statistics could negatively affect the performance. This updates introduces the possibility to turn the I/O accounting off by changing the value in /sys/block/[device_name]/queue/iostats.

Comment 13 errata-xmlrpc 2011-01-13 08:19:27 UTC
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.

http://rhn.redhat.com/errata/RHBA-2011-0140.html