Re: VM tuning

From: Dennis (
Date: Fri Jun 09 2000 - 12:17:12 EST

At 05:38 PM 6/9/00 +0100, Alan Cox wrote:
>> So, how can linux be "tuned" to guarantee a preallocation of X number of
>> buffers? Given an understanding of the queues in the machine, its not
>> difficult to estimate. In 'BSD we can allocate 8000 buffers and limit the
>> software so that memory will never be exhaused. Can this be done in linux?
>> Memory is cheap, there is no reason for 500 or even 3000 buffers to cripple
>> a router.
>Memory for stuff like socket buffers is drawn from the common pools and
>returned to it. If you are basically just routing then it is feasible to
>modify kfree_skb() to keep at least a certain amount of buffers handy.

thats not "tuning", thats hacking. Not what I had hoped for.


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