From: Zhu Yi <yi.zhu@intel.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"Shi, Alex" <alex.shi@intel.com>
Subject: Re: [RFC PATCH] accounting for socket backlog
Date: Mon, 01 Mar 2010 10:17:07 +0800 [thread overview]
Message-ID: <1267409827.23196.44.camel@debian> (raw)
In-Reply-To: <1267189945.2822.1572.camel@edumazet-laptop>
On Fri, 2010-02-26 at 21:12 +0800, Eric Dumazet wrote:
> Well, if you have one processor, and a process doesnt want to yield
> the cpu (apart of sofirq of course that is filling the backlog while
> your process tries to empty it), your machine is dead. This is
> critical too :)
If you only have one CPU, this won't happen. Because while the receiver
is busy processing the backlog, no senders will have the chance to be
scheduled to Tx more. And with the limited backlog, it won't take long
for the receiver to finish processing all the frames in the backlog.
Thanks,
-yi
next prev parent reply other threads:[~2010-03-01 2:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-25 3:13 [RFC PATCH] accounting for socket backlog Zhu Yi
2010-02-25 8:31 ` David Miller
2010-02-26 2:44 ` Zhu Yi
2010-02-26 5:52 ` David Miller
2010-02-25 11:24 ` Eric Dumazet
2010-02-26 2:34 ` Zhu Yi
2010-02-26 13:12 ` Eric Dumazet
2010-03-01 2:17 ` Zhu Yi [this message]
2010-03-01 2:29 ` Eric Dumazet
2010-03-01 3:03 ` Zhu Yi
2010-03-01 3:12 ` Eric Dumazet
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