Subject: Re: Faster pipes, now with uvm_loan()
To: Jason R Thorpe <thorpej@zembu.com>
From: Frank van der Linden <fvdl@wasabisystems.com>
List: tech-kern
Date: 04/09/2001 22:32:03
On Mon, Apr 09, 2001 at 01:20:46PM -0700, Jason R Thorpe wrote:
> He already said in a previous message that on fast machines, the new pipe
> code didn't improve things really at all.  But it's nice to see that there's
> an improvement when using uvm_loan().

Oh yeah. I remember running pipe benchmarks and comparing NetBSD and
FreeBSD. FreeBSD came out a lot better (since it already had the
faster code), but I did run that on a slower machine, a P5-200.

The extra 15% with uvm_loan is pretty cool.

- Frank

-- 
Frank van der Linden                           fvdl@wasabisystems.com
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