Re: Poor gige performance with 2.4.20-pre*

[Richard Gooch <rgooch@xxxxxxxxxxxxxxx>]

Benjamin LaHaise writes:
> On Sun, Sep 29, 2002 at 12:34:02AM -0600, Richard Gooch wrote:
> > This is all on a LAN (of course; expecting good performance from a WAN
> > is pretty futile). I use a buffer size of 256 KiB.
> 
> From my experience tuning on a 550MHz P3 Xeon, you're better off
> using a buffer size of 8-16KB that stays in the L1 cache.  Of
> course, that was without actually doing anything useful with the
> data being transferred.  Gige really does need a faster cpu in the
> ghz+ range.  As for ns83820, it's a work in progress.  Some of the
> recent bugfixes may have reduced performance, so it may need to be
> retuned.

Using 8 KiB buffer reduces performance, 16 KiB is almost the same as
using 256 KiB.

                                Regards,

                                        Richard....
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