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Bug 748212

Summary: Description of cpu.rt_period_us cpu.rt_runtime_us is incorrect.
Product: Red Hat Enterprise Linux 6 Reporter: Etsuji Nakai <enakai>
Component: doc-Resource_Management_GuideAssignee: Martin Prpič <mprpic>
Status: CLOSED CURRENTRELEASE QA Contact: ecs-bugs
Severity: medium Docs Contact:
Priority: unspecified    
Version: 6.2Keywords: Documentation
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-12-07 12:39:59 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:

Description Etsuji Nakai 2011-10-23 04:30:46 UTC 
Description of problem:

According to the kernel document:

 http://www.mjmwired.net/kernel/Documentation/scheduler/sched-rt-group.txt

"cpu.rt_period_us/rt_runtime_us" parameters of cgroup is relevant only to realtime scheduling processes.

However, RHEL6 documentation:

 http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Resource_Management_Guide/index.html#sec-cpu

describes as if it can be applied to normal processes. I suspect this is incorrect.
Comment 3 Etsuji Nakai 2011-10-27 14:26:03 UTC 
The correction in the Red Hat internal stage looks good. Thanks.
Comment 4 Martin Prpič 2011-10-27 14:35:10 UTC 
Moving to ON_QA. Changes described in comment #2 and applied in Red_Hat_Enterprise_Linux-Resource_Management_Guide-6-web-en-US-2-30.el5 and later.

Cheers,
Martin