[PATCH] ibm_newemac: Increase number of default rx-/tx-buffers
jwboyer at gmail.com
Sun Jan 6 08:48:05 EST 2008
On Sun, 06 Jan 2008 07:53:06 +1100
Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote:
> On Sat, 2008-01-05 at 13:38 +0100, Stefan Roese wrote:
> > On Saturday 05 January 2008, Benjamin Herrenschmidt wrote:
> > > On Sat, 2008-01-05 at 10:50 +0100, Stefan Roese wrote:
> > > > Performance tests done by AMCC have shown that 256 buffer increase the
> > > > performance of the Linux EMAC driver. So let's update the default
> > > > values to match this setup.
> > > >
> > > > Signed-off-by: Stefan Roese <sr at denx.de>
> > > > ---
> > >
> > > Do we have the numbers ? Did they also measure latency ?
> > I hoped this question would not come. ;) No, unfortunately I don't have any
> > numbers. Just the recommendation from AMCC to always use 256 buffers.
> Ok. Well, it's just a .config option so I suppose the patch is fine. Can
> you also update the defconfigs (at least for the recent AMCC boards) ?
No need for a defconfig update patch. Paul or I usually do a general
defconfig update for most boards before the next kernel version. This
will get picked up then.
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