From: Valdis.Kletnieks@vt.edu
To: Stephen Hemminger <shemminger@vyatta.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>, TB <lkml@techboom.com>,
netdev <netdev@vger.kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: Divide error in bictcp_cong_avoid ?
Date: Wed, 04 May 2011 15:31:21 -0400 [thread overview]
Message-ID: <16668.1304537481@localhost> (raw)
In-Reply-To: Your message of "Wed, 04 May 2011 11:33:51 PDT." <20110504113351.4643a0c9@nehalam>
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On Wed, 04 May 2011 11:33:51 PDT, Stephen Hemminger said:
> What kernel version? I suspect they are running something really old
> kernel like RHEL 5 since BIC has not been the default congestion control for
> several years.
Pretty bleeding edge here, and BIC is *still* the default:
% uname -a
Linux turing-police.cc.vt.edu 2.6.39-rc5-mmotm0429 #1 SMP PREEMPT Sat Apr 30 00:36:49 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux
% zgrep -i BIC /proc/config.gz
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=m
CONFIG_DEFAULT_BIC=y
CONFIG_DEFAULT_TCP_CONG="bic"
Why? Because BIC was working "well enough", so I never changed it by hand, and
"make oldconfig" never changed it automagically either. Now,
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next prev parent reply other threads:[~2011-05-04 19:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-04 16:03 Divide error in bictcp_cong_avoid ? TB
2011-05-04 17:49 ` Randy Dunlap
2011-05-04 18:33 ` Stephen Hemminger
2011-05-04 18:35 ` Randy Dunlap
2011-05-04 19:03 ` TB
2011-05-04 18:56 ` David Miller
2011-05-04 19:31 ` Valdis.Kletnieks [this message]
2011-05-04 19:37 ` Stephen Hemminger
2011-05-04 19:40 ` David Miller
2011-05-04 20:01 ` Valdis.Kletnieks
2011-05-04 20:04 ` [PATCH] tcp_cubic: limit delayed_ack ratio to prevent divide error Stephen Hemminger
2011-05-04 20:53 ` Brandeburg, Jesse
2011-05-06 16:15 ` TB
2011-05-06 16:53 ` Stephen Hemminger
2011-05-06 17:39 ` TB
2011-05-11 14:49 ` TB
2011-05-11 15:22 ` Stephen Hemminger
2011-05-11 15:35 ` TB
2011-05-08 22:52 ` David Miller
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