linux-kernel - Re: Need to enable caches in SMP ? (was Kernel 2.6 SMP very slow with ServerWorks LE Chipset)

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Message-ID: <458189FD.2080805@wolfmountaingroup.com>
Date:	Thu, 14 Dec 2006 10:29:33 -0700
From:	"Jeff V. Merkey" <jmerkey@...fmountaingroup.com>
To:	Alan <alan@...rguk.ukuu.org.uk>
CC:	Bob <spam@...eurl.co.uk>, linux-kernel@...r.kernel.org
Subject: Re: Need to enable caches in SMP ? (was Kernel 2.6 SMP very slow
 with ServerWorks LE Chipset)

Alan wrote:

>>As per Alan's suggestion I decompressed the kernel source tree with the 
>>processes pegged to one CPU then the other, and as he predicted it took 
>>vastly longer on one CPU than the other, but I don't know what that 
>>implies, or how to fix it.
>>    
>>
>
>>>From the timing it sounds like one processor cache is disabled which is a
>little peculiar to say the least.
>
>Alan
>-
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enable the L1 cache in the processor. BIOS settings, no doubt.

Jeff
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