From: arno@natisbad•org (Arnaud Ebalard)
To: linux-arm-kernel@lists•infradead.org
Subject: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s
Date: Thu, 21 Nov 2013 23:55:09 +0100 [thread overview]
Message-ID: <87txf54b76.fsf@natisbad.org> (raw)
In-Reply-To: 1385071201.10637.69.camel@edumazet-glaptop2.roam.corp.google.com
Hi eric,
Eric Dumazet <eric.dumazet@gmail•com> writes:
>> > I tested it on my RN2120 (2-core armada XP): I got no problem and the
>> > link saturated w/ apache, nginx and netperf. Good work!
>>
>> Great, thanks for your tests Arnaud. I forgot to mention that all my
>> tests this evening involved this patch as well.
>
> Now you might try to set a lower value
> for /proc/sys/net/ipv4/tcp_limit_output_bytes
On the RN2120, for a file served from /run/shm (for apache and nginx):
Apache nginx netperf
131072: 102 MB/s 112 MB/s 941.11 Mb/s
65536: 102 MB/s 112 MB/s 935.97 Mb/s
32768: 101 MB/s 105 MB/s 940.49 Mb/s
16384: 94 MB/s 90 MB/s 770.07 Mb/s
8192: 83 MB/s 66 MB/s 556.79 Mb/s
On the RN102, this time for apache and nginx, the file is served from
disks (ext4/lvm/raid1):
Apache nginx netperf
131072: 66 MB/s 105 MB/s 925.63 Mb/s
65536: 59 MB/s 105 MB/s 862.55 Mb/s
32768: 62 MB/s 105 MB/s 918.99 Mb/s
16384: 65 MB/s 105 MB/s 927.71 Mb/s
8192: 60 MB/s 104 MB/s 915.63 Mb/s
Values above are for a single flow though.
Cheers,
a+
next prev parent reply other threads:[~2013-11-21 22:55 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-10 13:53 [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s Arnaud Ebalard
2013-11-12 6:48 ` Cong Wang
2013-11-12 7:56 ` Arnaud Ebalard
2013-11-12 8:36 ` Willy Tarreau
2013-11-12 9:14 ` Arnaud Ebalard
2013-11-12 10:01 ` Willy Tarreau
2013-11-12 15:34 ` Arnaud Ebalard
2013-11-13 7:22 ` Willy Tarreau
2013-11-17 14:19 ` Willy Tarreau
2013-11-17 17:41 ` Eric Dumazet
2013-11-19 6:44 ` Arnaud Ebalard
2013-11-19 13:53 ` Eric Dumazet
2013-11-19 17:43 ` Willy Tarreau
2013-11-19 18:31 ` Eric Dumazet
2013-11-19 18:41 ` Willy Tarreau
2013-11-19 23:53 ` Arnaud Ebalard
2013-11-20 0:08 ` Eric Dumazet
2013-11-20 0:35 ` Willy Tarreau
2013-11-20 0:43 ` Eric Dumazet
2013-11-20 0:52 ` Willy Tarreau
2013-11-20 8:50 ` Thomas Petazzoni
2013-11-20 19:21 ` Arnaud Ebalard
2013-11-20 19:11 ` Willy Tarreau
2013-11-20 19:26 ` Arnaud Ebalard
2013-11-20 21:28 ` Arnaud Ebalard
2013-11-20 21:54 ` Willy Tarreau
2013-11-21 0:44 ` Willy Tarreau
2013-11-21 21:51 ` Arnaud Ebalard
2013-11-21 21:52 ` Willy Tarreau
2013-11-21 22:00 ` Eric Dumazet
2013-11-21 22:55 ` Arnaud Ebalard [this message]
2013-11-21 23:23 ` Rick Jones
[not found] ` <20131121183834.GB18513@1wt.eu>
2013-11-21 19:04 ` ARM network performance and dma_mask (was: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s) Thomas Petazzoni
2013-11-21 21:51 ` ARM network performance and dma_mask (was: [BUG, REGRESSION?] 3.11.6+, 3.12: " Willy Tarreau
2013-11-21 22:01 ` ARM network performance and dma_mask Rob Herring
2013-11-21 22:13 ` Willy Tarreau
2013-11-20 17:12 ` [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s Willy Tarreau
2013-11-20 17:30 ` Eric Dumazet
2013-11-20 17:38 ` Willy Tarreau
2013-11-20 18:52 ` David Miller
2013-11-20 17:34 ` Willy Tarreau
2013-11-20 17:40 ` Eric Dumazet
2013-11-20 18:15 ` Willy Tarreau
2013-11-20 18:21 ` Eric Dumazet
2013-11-20 18:29 ` Willy Tarreau
2013-11-20 19:22 ` Arnaud Ebalard
2013-11-18 10:09 ` David Laight
2013-11-18 10:52 ` Willy Tarreau
2013-11-18 10:26 ` Thomas Petazzoni
2013-11-18 10:44 ` Simon Guinot
2013-11-18 16:54 ` Stephen Hemminger
2013-11-18 17:13 ` Eric Dumazet
2013-11-18 10:51 ` Willy Tarreau
2013-11-18 17:58 ` Florian Fainelli
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