From: David Miller <davem@davemloft.net>
To: dborkman@redhat.com
Cc: netdev@vger.kernel.org, linux-sctp@vger.kernel.org,
matija.glavinic-pecotic.ext@nsn.com, alexander.sverdlin@nsn.com,
vyasevich@gmail.com
Subject: Re: [PATCH net] Revert "net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer"
Date: Mon, 14 Apr 2014 16:48:39 -0400 (EDT) [thread overview]
Message-ID: <20140414.164839.2032159104530481155.davem@davemloft.net> (raw)
In-Reply-To: <1397504717-19566-1-git-send-email-dborkman@redhat.com>
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 14 Apr 2014 21:45:17 +0200
> This reverts commit ef2820a735f7 ("net: sctp: Fix a_rwnd/rwnd management
> to reflect real state of the receiver's buffer") as it introduced a
> serious performance regression on SCTP over IPv4 and IPv6, though a not
> as dramatic on the latter. Measurements are on 10Gbit/s with ixgbe NICs.
>
> Current state:
...
> With the reverted patch applied, the SCTP/IPv4 performance is back
> to normal on latest upstream for IPv4 and IPv6 and has same throughput
> as 3.4.2 test kernel, steady and interval reports are smooth again.
>
> Fixes: ef2820a735f7 ("net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer")
> Reported-by: Peter Butler <pbutler@sonusnet.com>
> Reported-by: Dongsheng Song <dongsheng.song@gmail.com>
> Reported-by: Fengguang Wu <fengguang.wu@intel.com>
> Tested-by: Peter Butler <pbutler@sonusnet.com>
> Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Applied and queued up for -stable.
next prev parent reply other threads:[~2014-04-14 20:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-14 19:45 [PATCH net] Revert "net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer" Daniel Borkmann
2014-04-14 19:57 ` Vlad Yasevich
2014-04-16 6:57 ` Matija Glavinic Pecotic
2014-04-16 8:39 ` Dongsheng Song
2014-04-16 9:02 ` Alexander Sverdlin
2014-04-16 11:55 ` Matija Glavinic Pecotic
2014-04-16 13:32 ` Vlad Yasevich
2014-04-16 18:50 ` Vlad Yasevich
2014-04-16 19:05 ` Daniel Borkmann
2014-04-16 19:24 ` Matija Glavinic Pecotic
2014-04-16 19:47 ` Vlad Yasevich
2014-04-21 19:12 ` Matija Glavinic Pecotic
2014-04-14 20:48 ` David Miller [this message]
2014-04-15 8:46 ` Alexander Sverdlin
2014-04-15 8:57 ` Daniel Borkmann
2014-04-15 6:43 ` Alexander Sverdlin
2014-04-15 7:08 ` Daniel Borkmann
2014-04-15 14:27 ` Butler, Peter
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