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Subject: Re: [Lse-tech] [RFC]  per cpu slab fix to reduce freemiss
To: dipankar@beaverton.ibm.com
Cc: Bill Hartner <Bill_Hartner@us.ibm.com>, linux-kernel@vger.kernel.org,
       lse <lse-tech@lists.sourceforge.net>,
       "Luck, Tony" <tony.luck@intel.com>
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From: "Mala Anand" <manand@us.ibm.com>
Date: Thu, 1 Aug 2002 08:31:45 -0500
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Dipankar wrote..
>Isn't it possible to tune the cpucache limit by writing to
>/proc/slabinfo so that you avoid frequent draining of free objects ?
>Am I missing something here ?

Are you referring to raising the per cpu array limit? I don't think you
tune that using /proc/slabinfo.  However that does not solve the problem,
it only delays it.  It needs to grow/shrink dynamically based on need. I
am not only referring to frequently draining of free objects but also
as a result of this refilling the object array due to subsequent
allocations and so on.

Regards,
    Mala


   Mala Anand
   IBM Linux Technology Center - Kernel Performance
   E-mail:manand@us.ibm.com
   Phone:838-8088; Tie-line:678-8088






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