On Wednesday 12 January 2005 05:19 pm, Robert Olsson wrote:
> Jeremy M. Guthrie writes:
> > Here is what it looked like I was getting before from the old driver...
> > that took me down to 8mbps.
> >
> > "printk: 4624 messages suppressed.
> > dst cache overflow
> > printk: 4630 messages suppressed.
> > dst cache overflow
> > printk: 4631 messages suppressed.
> > dst cache overflow
> > printk: 4646 messages suppressed.
> > dst cache overflow
> > printk: 4645 messages suppressed.
> > dst cache overflow"
>
> Thanks!
>
> This a known problem. Remember I asked you about this. We're now in the
> RCU route-hash problem again. This is not necessary solved by more CPU
> as higher t-put forces more dst-entries to be freed aand we get
> closer to max_size.
>
> As your traffic looks sane double your bucket size of the route hash to
> start with. Use the boot option w. rhash_entries. look at rtstat
Does it make sense that the driver would kill throughput and force us to
output these types of messages?
--
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Jeremy M. Guthrie jeremy.guthrie@xxxxxxxxxx
Senior Network Engineer Phone: 608-298-1061
Berbee Fax: 608-288-3007
5520 Research Park Drive NOC: 608-298-1102
Madison, WI 53711
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