Bug 676948

Summary: [RFE][6.1] sched: Try not to migrate higher priority RT tasks
Product: Red Hat Enterprise Linux 6 Reporter: Jeremy Eder <jeder>
Component: kernelAssignee: Larry Woodman <lwoodman>
Status: CLOSED ERRATA QA Contact: Zhang Kexin <kzhang>
Severity: high Docs Contact:
Priority: high    
Version: 6.2CC: arozansk, jeder, jipan, kzhang, lwoodman, pzijlstr, syeghiay
Target Milestone: rcKeywords: FutureFeature
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel-2.6.32-128.el6 Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-05-23 20:39:24 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:    
Bug Blocks: 627601    
Attachments:
Description Flags
kernelsharp for 12 threads on 8cpu with 125 kernel
none
kernelsharp for 12 threads on 8cpu with 130 kernel
none
kernelsharp for 16 threads on 8cpu with 125 kernel
none
kernelsharp for 16 threads on 8cpu with 130 kernel none

Comment 3 Larry Woodman 2011-03-19 04:46:35 UTC 
Built & tested a kernel.  Its located in barstool.build:/mnt/redhat/brewroot/scratch/lwoodman/task_3188439/.  Please try it out and let me know if it works ASAP so I get into RHEL6.U1.

Larry Woodman
Comment 10 Aristeu Rozanski 2011-03-30 14:23:54 UTC 
Patch(es) available on kernel-2.6.32-128.el6
Comment 15 Zhang Kexin 2011-04-15 10:25:17 UTC 
Created attachment 492328 [details]
kernelsharp for 12 threads on 8cpu with 125 kernel
Comment 16 Zhang Kexin 2011-04-15 10:25:58 UTC 
Created attachment 492329 [details]
kernelsharp for 12 threads on 8cpu with 130 kernel
Comment 17 Zhang Kexin 2011-04-15 10:26:34 UTC 
Created attachment 492330 [details]
kernelsharp for 16 threads on 8cpu with 125 kernel
Comment 18 Zhang Kexin 2011-04-15 10:27:06 UTC 
Created attachment 492331 [details]
kernelsharp for 16 threads on 8cpu with 130 kernel
Comment 21 errata-xmlrpc 2011-05-23 20:39:24 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/RHSA-2011-0542.html