On 19/10/06, Bill Moran <[EMAIL PROTECTED]> wrote:
In response to Jason Thomson <[EMAIL PROTECTED]>:
> Scott Long wrote:
> > Conrad Burger wrote:
> >
> >> Hi
> >>
> >> It looks like there is a "new" version of the bce driver in HEAD.
> >> When will it be incorporated into Releng_6?
> >
> >
> > It will be merged when someone, preferably 2-3 people, tell me that
> > the changes in HEAD work for them. So far, no one has.
> >
> > Scott
> > _______________________________________________
>
> Using the driver from HEAD* in the latest RELENG_6 didn't fix our
> problems.
>
> We could still trigger the Watchdog timeout when copying a local file to
> an NFS mounted filesystem (UDP mount, GigE speeds).
Same here, although it seemed to require a lot more effort to produce the
problem.
I see there have been additional updates to the driver in the past 10
hours. I'll grab those and try again to see if they help any.
--
Bill Moran
Collaborative Fusion Inc.
Would it be possible for someone to provide instructions on how to
compile the new bce driver in HEAD on RELENG_6?
Just to give you an idea of the problem we are sitting with.
Attached is an image of a comparison between a FreeBSD 5.4 with em and
a FreeBSD 6.2-pre with bce. The blue line is the 5.4 system. You will
notice how smooth the graph is for the 5.4 system. The image can also
be downloaded at
"http://www.mxit.co.za/mxa_227430610303000_sess.png_bytesinout.png";
Both systems run the same java app and both receive the same load.
On the 6.2-pre network I/Os sometime takes up to 7 seconds to complete.
We are starting to think that the performance difference might have
something to do with synchronization within the bce dirver/SMP network
stack... we don't know enough so any help would be much appreciated!
Does anyone know how to disable interrupt coalescing on the bce driver?
Regards
Conrad
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![http://www.mxit.co.za/mxa_227430610303000_sess.png_bytesinout.png"](http://www.mxit.co.za/mxa_227430610303000_sess.png_bytesinout.png"){kind=link}