Bug 216468

Summary:	CONFIG_SCHEDSTATS NEEDS should be turned off
Product:	Red Hat Enterprise Linux 5	Reporter:	Anil S Keshavamurthy <akeshava>
Component:	kernel	Assignee:	Anil S Keshavamurthy <akeshava>
Status:	CLOSED WONTFIX	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	high
Version:	5.0	CC:	dzickus
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Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2006-12-21 21:59:58 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Anil S Keshavamurthy 2006-11-20 17:30:19 UTC

Description of problem:
RHEL5 Beta2 kernel has CONFIG_SCHEDSTATS set to "Y", as this config does not
help in detecting system stability and only useful for performance tunning.


Version-Release number of selected component (if applicable):
RHEL5 Beta2


Additional info:
We have in the past has measured the TPCC performance and we have seen a
degradation of 0.5 to 1% on a 4P madison.

Comment 1 Don Zickus 2006-12-21 21:59:58 UTC

This is needed by IBM and until Intel provides the area of code that is the
bottleneck for their perf tests or someone provides a knob to disable this
option at boot time, I am inclined to leave the option enabled.