> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:networking-
> [EMAIL PROTECTED] On Behalf Of Andrew Gallatin
> Sent: Monday, June 18, 2007 10:13 AM
> To: Garrett D'Amore
> Cc: Skavberg, Robin; [email protected]
> Subject: Re: [networking-discuss] FW: 10GB Network Interface
Throughput
> 
> 
> Garrett D'Amore writes:
>  >
>  > I'm working on this area of performance.  If you aren't using jumbo
>  > frames, you need a card that supports LSO.  The only option at the
>  > moment is "xge" (Neterion.)
>  >
> 
> Since GLDv3 will apparently never be stabilized and made available for
> use by IHVs, it would be really nice if you could at least add {T,L}SO
> support to GLDv2.  This would get you at least one more 10GbE NIC
> supporting LSO.
> 
>  > For all other NICs, the per-packet-overheads associated with 1500
> byte
>  > frames are quite limiting at 10Gb.  I'm spending a lot of time
> examining
>  > ways to improve this for Solaris Nevada, some of these may be
> backported
>  > to Solaris 10 in the future.
> 
> As an interesting data point, Solaris has the best 1500b *receive*
> rate of any OS I've tested recently.  Even without LRO, I'm able to
> receive a single stream at nearly 7.5Gb/s (sent via TSO from a FreeBSD
> or Linux host) on Solaris/amd64.

Similar experience here... T2000 1500mtu numbers are much lower than
amd64 or course, 
and multiple hw rings (one per core) are a "must have" on T2000, as well
as on any other Niagara system...
Leonid

> 
> 
> Drew
> 
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