From: David Miller <davem@davemloft.net>
To: jesse.brandeburg@intel.com
Cc: leitao@linux.vnet.ibm.com, netdev@vger.kernel.org
Subject: Re: e1000 performance issue in 4 simultaneous links
Date: Thu, 10 Jan 2008 17:28:30 -0800 (PST) [thread overview]
Message-ID: <20080110.172830.16409182.davem@davemloft.net> (raw)
In-Reply-To: <36D9DB17C6DE9E40B059440DB8D95F5204275B04@orsmsx418.amr.corp.intel.com>
From: "Brandeburg, Jesse" <jesse.brandeburg@intel.com>
Date: Thu, 10 Jan 2008 12:52:15 -0800
> I hope this explanation makes sense, but what it comes down to is that
> combining hardware round robin balancing with NAPI is a BAD IDEA.
Absolutely agreed on all counts.
No IRQ balancing should be done at all for networking device
interrupts, with zero exceptions. It destroys performance.
next prev parent reply other threads:[~2008-01-11 1:28 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-10 16:17 e1000 performance issue in 4 simultaneous links Breno Leitao
2008-01-10 16:36 ` Ben Hutchings
2008-01-10 16:51 ` Jeba Anandhan
2008-01-10 17:31 ` Breno Leitao
2008-01-10 18:18 ` Kok, Auke
2008-01-10 18:37 ` Rick Jones
2008-01-10 18:26 ` Rick Jones
2008-01-10 20:52 ` Brandeburg, Jesse
2008-01-11 1:28 ` David Miller [this message]
2008-01-11 11:09 ` Benny Amorsen
2008-01-12 1:41 ` David Miller
2008-01-12 5:13 ` Denys Fedoryshchenko
2008-01-30 16:57 ` Kok, Auke
2008-01-11 16:20 ` Breno Leitao
2008-01-11 16:48 ` Eric Dumazet
2008-01-11 17:36 ` Denys Fedoryshchenko
2008-01-11 18:45 ` Breno Leitao
2008-01-11 18:19 ` Breno Leitao
2008-01-11 18:48 ` Rick Jones
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