On Tuesday 10 October 2006 22:49, Linas Vepstas wrote:
> Andrew, please apply/forward upstream.
>
> The following set of 21 patches (!) are all aimed at the the
> spidernet ethernet device driver. The spidernet is an etherenet
> controller built into the Toshiba southbridge for the PowerPC Cell
> processor. (This is the only device in existance that with this
> ethernet hardware in it).
>
> These patches re-package/re-order/re-cleanup a previous
> set of patches I've previously mailed. Thus, some have
> been previously Acked-by lines, most do not. Most of
> these patches are tiny, and handle problems that cropped
> up during testing. Sorry about there being so many of them.
>
> The first set of 12 patches fix a large variety of mostly
> minor bugs.
>
> The important patches are 13 through 17: these overcome a
> debilitating performance problem on transmit (6 megabits
> per second !!) on transmit of patches 500 bytes or larger.
> After applying these, I am able to get the following:
>
> pkt sz speed (100K buffs) speed (4M buffs)
> ------ ----------------- ----------------
> 1500 700 Mbits/sec 951 Mbits/sec
> 1000 658 Mbits/sec 770
> 800 600 648
> 500 500 500
> 300 372 372
> 60 70 70
>
> Above buf size refers to /proc/sys/net/core/wmem_default
Excellent work! I guess this the best tx performance we've
seen so far on this hardware.
Consider this as an Acked-by: for all the patches, I'll save
the effort of replying to each one of them separately.
Jeff, do you plan on merging these fixes for 2.6.19?
Arnd <><
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