David Mosberger wrote:
> $ httperf --rate 1000 --num-conns 1000000 --verbose --hog --server HOST \
> --uri pathto30KBfile
Hmm, ditto, except I was way down at --rate 300 (was seeing client
errors of fd-unavail). Have ulimited upwards but am still seeing
them..
> on 3 clients (for a total of 3000 conns/sec). You can't go higher
> than 1000 conn/sec per client (IP address) because otherwise you run
> out of port space (due to TIME_WAIT).
You can hike /proc/sys/net/ipv4/tcp_tw_recycle for that.
> This load worked well for a machine with a single GigE card. All
> network tunables were on the default setting (in particular, the tx
> queue len was 300, which is were the losses came from).
>
> With this load, I saw bad RTT values in the route cache within a
> couple of seconds after starting the third httperf generator. It then
> took a bit longer (on the order of 1-2 minutes) until the first
> TCPAbortFailed errors started to pop up
I saw a few AbortOnTimeouts, but no AbortFailed counts.
Those should be TCPAbortOnTimeout counts, rather than TCPAbortFailed
errors, I would expect? Why AbortFailed? Coming from IP via
tcp_transmit_skb()?
thanks,
Nivedita
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Jun 07 2003 - 22:00:22 EST