From: "Michael S. Tsirkin" <mst@mellanox.co.il>
To: Shirley Ma <xma@us.ibm.com>
Cc: Hoang-Nam Nguyen <HNGUYEN@de.ibm.com>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
Marcus Eder <MEDER@de.ibm.com>,
openib-general@openib.org, openib-general-bounces@openib.org,
Christoph Raisch <RAISCH@de.ibm.com>,
Roland Dreier <rdreier@cisco.com>
Subject: Re: [openib-general] Re: [PATCH 07/16] ehca: interrupt handling routines
Date: Tue, 9 May 2006 21:44:52 +0300 [thread overview]
Message-ID: <20060509184451.GF22825@mellanox.co.il> (raw)
In-Reply-To: <OF22D08323.20D303C1-ON87257169.0063C980-88257169.006A41AB@us.ibm.com>
Quoting r. Shirley Ma <xma@us.ibm.com>:
> According to some results from different resouces, NAPI only gives 3%-10% performance improvement on single CQ.
When you say performance you mean bandwidth.
But I think it should improve the CPU utilization on RX side significantly.
If it does, that an important metric as well.
> I am trying a simple NAPI patch on splitting CQ now to see how much performance there.
What are you using for a benchmark?
--
MST
next prev parent reply other threads:[~2006-05-09 18:44 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4450A196.2050901@de.ibm.com>
2006-05-04 21:29 ` [openib-general] " Roland Dreier
2006-05-05 13:05 ` Heiko J Schick
2006-05-05 14:49 ` Roland Dreier
2006-05-09 12:35 ` Heiko J Schick
2006-05-09 16:23 ` Roland Dreier
2006-05-09 16:49 ` Michael S. Tsirkin
[not found] ` <OF22D08323.20D303C1-ON87257169.0063C980-88257169.006A41AB@us.ibm.com>
2006-05-09 18:36 ` [openib-general] " Roland Dreier
2006-05-09 18:44 ` Michael S. Tsirkin [this message]
[not found] ` <OF9332FF11.38007290-ON87257169.00673F71-88257169.006C7F6E@us.ibm.com>
2006-05-09 18:55 ` Michael S. Tsirkin
2006-05-09 18:57 ` [openib-general] " Heiko J Schick
2006-05-09 19:04 ` Stephen Hemminger
[not found] ` <OF6CAB9865.804CAFBB-ON87257169.006C3DBC-88257169.00718277@us.ibm.com>
2006-05-09 20:20 ` Michael S. Tsirkin
[not found] ` <OFD1053717.15B4F49A-ON87257169.007531E1-88257169.007AD29E@us.ibm.com>
2006-05-10 5:33 ` Michael S. Tsirkin
2006-05-09 23:35 ` [openib-general] " Segher Boessenkool
2006-05-09 13:15 ` Christoph Hellwig
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