[TEST/REVIEW] CPU accounting patches

Andre Guibert de Bruet andy at siliconlandmark.com
Fri Jan 27 19:15:17 PST 2006

On Jan 27, 2006, at 3:50 AM, Mike Jakubik wrote:

> Kevin Oberman wrote:
>> Good accounting is very important to some, but the issue of  
>> dealing with reduced clock speed is almost certainly of no issue  
>> when it comes to charging for computer use. I can't imagine any  
>> reason someone would be paying for CPU time on a processor not  
>> running "full out".
>> The only time that this might be an issue is when thermal  
>> management takes over. I'd hope that thermal management would  
>> never kick in on a commercial compute server, but, if it did, the  
>> customer should, at least, only pay for the number of seconds the  
>> job would have run had it been properly cooled. (Actually, he  
>> should probably pay less as his time is also being wasted.)
> As a user from the 2.x days, i would much rather have the great  
> increase of context switching performance than super accurate cpu  
> accounting that i will never use. FreeBSD needs to focus on  
> performance now.

These are my exact thoughts on the matter!


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