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RE: Disable CPU limits in Openshift V4



Dell Customer Communication

You might be hitting the watchman throttler. Check out this RH article for some details (if you have access):

 

How does the OpenShift throttler plugin work and how can it be configured?

  https://access.redhat.com/solutions/1202813

 

Randall Theobald

Common Engineering – Performance

Dell Software Group  |  Office of the CTO

randall_theobald at dell.com  |  RR1-C336

 

From: Andrei Colta [mailto:andrey colta gmail com]
Sent: Monday, September 22, 2014 3:07 PM
To: Philibert Romain
Cc: users; dev lists openshift redhat com
Subject: Re: Disable CPU limits in Openshift V4

 

Hi,

Basically this is the default, and it doesn't work.

I have tested with stress and only after stopping cgconfig and cgred services  cpu limit got removed, but still need to investigate and test.

Regards,
Andrei

 

On Mon, Sep 22, 2014 at 5:58 PM, Philibert Romain <romain philibert worldline com> wrote:

Hi Andrei

 

You can change cpu_cfs_quota_us to 100000 in resource_limits.conf

https://github.com/openshift/origin-server/blob/master/node/conf/resource_limits.conf#L51

 

It will remove the quota on the CPU.

You want more informations about CPU Cgroup, take a look at https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Resource_Management_Guide/sec-cpu.html

 

Cheers

Romain

 

De : users-bounces lists openshift redhat com [mailto:users-bounces lists openshift redhat com] De la part de Andrei Colta
Envoyé : lundi 22 septembre 2014 16:54
À : users; dev lists openshift redhat com
Objet : Disable CPU limits in Openshift V4

 

Hello all,

I would like to disable CPU limits for all APPs/gears on a specific node.

Does anyone knows how to do this?

Regards,
Andrei

 



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