From: Eric Dumazet <dada1@cosmosbay•com>
To: Jesper Dangaard Brouer <hawk@diku•dk>
Cc: netdev <netdev@vger•kernel.org>,
Netfilter Developers <netfilter-devel@vger•kernel.org>
Subject: Re: [PATCH] netfilter: finer grained nf_conn locking
Date: Mon, 30 Mar 2009 22:41:43 +0200 [thread overview]
Message-ID: <49D12E87.4090005@cosmosbay.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0903302224120.13385@ask.diku.dk>
Jesper Dangaard Brouer a écrit :
> On Mon, 30 Mar 2009, Eric Dumazet wrote:
>
>> Jesper Dangaard Brouer a écrit :
>>>
>>>> Eric Dumazet wrote:
>>>>> "tbench 8" results on my 8 core machine (32bit kernel, with
>>>>> conntracking on) : 2319 MB/s instead of 2284 MB/s
>>>
>>> How do you achieve this impressing numbers?
>>> Is it against localhost? (10Gbit/s is max 1250 MB/s)
>>>
>>
>> tbench is a tcp test on localhost yes :)
>
> I see!
>
> Using a Sun 10GbE NIC I was only getting a throughput of 556.86 MB/sec
> with 64 procs (between an AMD Phenom X4 and a Core i7). (Not tuned
> multi queues yet ...)
>
> Against localhost I'm getting (not with applied patch):
>
> 1336.42 MB/sec on my AMD phenom X4 9950 Quad-Core Processor
>
> 1552.81 MB/sec on my Core i7 920 (4 physical cores, plus 4 threads)
Strange results, compared to my E5420 (I thought i7 was faster ??)
>
> 2274.53 MB/sec on my dual CPU Xeon E5420 (8 cores)
Yes, my dev machine is a dual E5420 (8 cores) at 3.00 GHz
gcc version here is 4.3.3
>
>
>> Good to test tcp stack without going to NIC hardware
>
> Yes true, but this also stresses the process scheduler, I'm seeing
> around 800.000 context switches per sec on the Dual CPU Xeon system.
>
Indeed, tbench is a mix of tcp and process scheduler test/bench
next prev parent reply other threads:[~2009-03-30 20:41 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-18 5:19 [RFT 0/4] Netfilter/iptables performance improvements Stephen Hemminger
2009-02-18 5:19 ` [RFT 1/4] iptables: lock free counters Stephen Hemminger
2009-02-18 10:02 ` Patrick McHardy
2009-02-19 19:47 ` [PATCH] " Stephen Hemminger
2009-02-19 23:46 ` Eric Dumazet
2009-02-19 23:56 ` Rick Jones
2009-02-20 1:03 ` Stephen Hemminger
2009-02-20 1:18 ` Rick Jones
2009-02-20 9:42 ` Patrick McHardy
2009-02-20 22:57 ` Rick Jones
2009-02-21 0:35 ` Rick Jones
2009-02-20 9:37 ` Patrick McHardy
2009-02-20 18:10 ` [PATCH] iptables: xt_hashlimit fix Eric Dumazet
2009-02-20 18:33 ` Jan Engelhardt
2009-02-28 1:54 ` Jan Engelhardt
2009-02-28 6:56 ` Eric Dumazet
2009-02-28 8:22 ` Jan Engelhardt
2009-02-24 14:31 ` Patrick McHardy
2009-02-27 14:02 ` [PATCH] iptables: lock free counters Eric Dumazet
2009-02-27 16:08 ` [PATCH] rcu: increment quiescent state counter in ksoftirqd() Eric Dumazet
2009-02-27 16:34 ` Paul E. McKenney
2009-03-02 10:55 ` [PATCH] iptables: lock free counters Patrick McHardy
2009-03-02 17:47 ` Eric Dumazet
2009-03-02 21:56 ` Patrick McHardy
2009-03-02 22:02 ` Stephen Hemminger
2009-03-02 22:07 ` Patrick McHardy
2009-03-02 22:17 ` Paul E. McKenney
2009-03-02 22:27 ` Eric Dumazet
2009-02-18 5:19 ` [RFT 2/4] Add mod_timer_noact Stephen Hemminger
2009-02-18 9:20 ` Ingo Molnar
2009-02-18 9:30 ` David Miller
2009-02-18 11:01 ` Ingo Molnar
2009-02-18 11:39 ` Jarek Poplawski
2009-02-18 12:37 ` Ingo Molnar
2009-02-18 12:33 ` Patrick McHardy
2009-02-18 21:39 ` David Miller
2009-02-18 21:51 ` Ingo Molnar
2009-02-18 22:04 ` David Miller
2009-02-18 22:42 ` Peter Zijlstra
2009-02-18 22:47 ` David Miller
2009-02-18 22:56 ` Stephen Hemminger
2009-02-18 10:07 ` Patrick McHardy
2009-02-18 12:05 ` [patch] timers: add mod_timer_pending() Ingo Molnar
2009-02-18 12:33 ` Patrick McHardy
2009-02-18 12:50 ` Ingo Molnar
2009-02-18 12:54 ` Patrick McHardy
2009-02-18 13:47 ` Ingo Molnar
2009-02-18 17:00 ` Oleg Nesterov
2009-02-18 18:23 ` Ingo Molnar
2009-02-18 18:58 ` Oleg Nesterov
2009-02-18 19:24 ` Ingo Molnar
2009-02-18 10:29 ` [RFT 2/4] Add mod_timer_noact Patrick McHardy
2009-02-18 5:19 ` [RFT 3/4] Use mod_timer_noact to remove nf_conntrack_lock Stephen Hemminger
2009-02-18 9:54 ` Patrick McHardy
2009-02-18 11:05 ` Jarek Poplawski
2009-02-18 11:08 ` Patrick McHardy
2009-02-18 14:01 ` Eric Dumazet
2009-02-18 14:04 ` Patrick McHardy
2009-02-18 14:22 ` Eric Dumazet
2009-02-18 14:27 ` Patrick McHardy
2009-02-18 5:19 ` [RFT 4/4] netfilter: Get rid of central rwlock in tcp conntracking Stephen Hemminger
2009-02-18 9:56 ` Patrick McHardy
2009-02-18 14:17 ` Eric Dumazet
2009-02-19 22:03 ` Stephen Hemminger
2009-03-28 16:55 ` [PATCH] netfilter: finer grained nf_conn locking Eric Dumazet
2009-03-29 0:48 ` Stephen Hemminger
2009-03-30 19:57 ` Eric Dumazet
2009-03-30 20:05 ` Stephen Hemminger
2009-04-06 12:07 ` Patrick McHardy
2009-04-06 12:32 ` Jan Engelhardt
2009-04-06 17:25 ` Stephen Hemminger
2009-03-30 18:57 ` Rick Jones
2009-03-30 19:20 ` Eric Dumazet
2009-03-30 19:38 ` Jesper Dangaard Brouer
2009-03-30 19:54 ` Eric Dumazet
2009-03-30 20:34 ` Jesper Dangaard Brouer
2009-03-30 20:41 ` Eric Dumazet [this message]
2009-03-30 21:25 ` Jesper Dangaard Brouer
2009-03-30 22:44 ` Rick Jones
2009-03-31 19:52 ` Jesper Dangaard Brouer
2009-03-31 20:23 ` Eric Dumazet
2009-03-31 20:35 ` Rick Jones
2009-03-31 20:52 ` Jesper Dangaard Brouer
2009-02-18 21:55 ` [RFT 4/4] netfilter: Get rid of central rwlock in tcp conntracking David Miller
2009-02-18 23:23 ` Patrick McHardy
2009-02-18 23:35 ` Stephen Hemminger
2009-02-18 8:30 ` [RFT 0/4] Netfilter/iptables performance improvements Eric Dumazet
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