| *SOLVED* Using cpuunits to enforce CPU proportional shares [message #10021] |
Mon, 05 February 2007 15:47  |
Pradeep Padala
Messages: 18
Registered: June 2006
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Junior Member |
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Hi,
I am trying to enforce a CPU usage ratio by using the cpuunits option instead of cpulimit. For ex. I want to make sure that two VEs ve1, ve2 should have a CPU consumption ratio of 3:1 (proportional shares). I know that I can use cpulimit to do this, but is it possible to use cpuunits ? If I run two CPU consuming applications in ve1 and ve2, and specify a 3:1 ratio of cpuunits, would the VEs consume CPU in that ratio ?
I experimented with a simple while(1) loop and it doesn't seem to follow this. If this doesn't work, what's the use of specifying cpuunits ?
Pradeep
[Updated on: Wed, 07 February 2007 07:09] by Moderator Report message to a moderator |
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| Re: Using cpuunits to enforce CPU proportional shares [message #10027 is a reply to message #10021] |
Mon, 05 February 2007 16:46  |
Vasily Tarasov
Messages: 1345
Registered: January 2006
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Senior Member |
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Hello,
Actually it should work as you expect: if cpuunits is 3:1, then first VE should have 3 times more CPU. So let's find out why this is not right for you.
Please, provide the information about the kernel you're using, how did you conduct the test, <veid>.conf files, vz.conf files, contents of /proc/user_beancounters, /proc/fairsched, /proc/fairsched2.
Thanks,
Vasily.
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