Re: Looking for testers with these NICs

[Adam Kropelin <akropel1@rochester.rr.com>]

On Wed, Oct 09, 2002 at 08:37:48PM -0200, Denis Vlasenko wrote:
> On 9 October 2002 15:14, Adam Kropelin wrote:
> > On Wed, Oct 09, 2002 at 07:31:17PM -0200, Denis Vlasenko wrote:
> > > ewrk3.c
> >
> > I've got a few of these laying around. Send whatever patches you want
> > tested and I'll give it a shot.
> 
> Please do your best in trying to break it, especially since you say you have
> more than one. Can you plug them all in one box?
> 
> I'd suggest SMP/preempt heavy IO. Is there stress test software for NICs?

I've finished beating the heck out of this driver. Over 12 hours of pounding
simultaneously on three NICs in a 2x SMP box running with preempt enabled and
not a single oops, BUG(), or deadlock. I'd say the driver is pretty solid at
this point; vda's locking patches seem to be safe. 

As a sidenote, the max throughput I was able to achieve across three cards was
about 1.4 MBytes/sec. A single card could do about 800 KBytes sec; 2 together
got to 1.2 MBytes/sec. Heavy CPU utilization the whole way, of course, since
these cards do not use DMA. 

--Adam