Re: 2.5.50-BK + 24 CPUs

From: William Lee Irwin III (
Date: Sun Dec 08 2002 - 18:01:09 EST

On Sun, 2002-12-08 at 13:28, William Lee Irwin III wrote:
>> Hmm. What happened to that pipe buffer size increase patch? That sounds
>> like it might help here, but only if those things are trying to shove
>> more than 4KB through the pipe at a time.

On Sun, Dec 08, 2002 at 03:22:58PM -0800, David S. Miller wrote:
> You probably mean the zero-copy pipe patches, which I think really
> should go in. The most recent version of the diffs I saw didn't
> use the zero copy bits unless the trasnfers were quite large so it
> should be ok and not pessimize small transfers.
> That patch has been gathering cobwebs for more than a year now when I
> first did it, let's push this in already :-)

I was actually referring to one that explicitly used larger pipe
buffers, but this sounds useful too.

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