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From "William A. Rowe, Jr." <wr...@rowe-clan.net>
Subject Re: [users@httpd] Processor usage
Date Wed, 17 May 2006 00:26:00 GMT
Bill Jones wrote:
> On 5/16/06, Mario Henley Becerril Geldis 
> <Mario.H.Becerril@edomex.gob.mx> wrote:
> 
>>  Hi all,
>>
>>  I have a box with Winbugs 2003(win 2003) and apache http server that 
>> have 4
>> processors , the performance monitor report that the third processor have
>> usage of 85%, rest of processor have a usage of around 20-25%.
>>
>>  My question is, Do you know how Apache get processor resources? is 
>> normal
>> that behavior?
> 
> Does your Windows 2003 Server support Processor Affinity?  If so you
> can assign Apache to a set of two processors and left two free for the
> operating system and other things like a database application.

Since httpd isn't setting affinity, and is chewing on multiple threads, I'll
bet dollars to donuts the third thread isn't httpd's consumption.  Incidently,
it means the kernel schedule will be favoring cpu's 1, 2 and 4 for httpd.

Bill

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