Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750946AbWEISyw (ORCPT ); Tue, 9 May 2006 14:54:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750955AbWEISyw (ORCPT ); Tue, 9 May 2006 14:54:52 -0400 Received: from [194.90.237.34] ([194.90.237.34]:3397 "EHLO mtlexch01.mtl.com") by vger.kernel.org with ESMTP id S1750946AbWEISyv (ORCPT ); Tue, 9 May 2006 14:54:51 -0400 Date: Tue, 9 May 2006 21:55:33 +0300 From: "Michael S. Tsirkin" To: Shirley Ma Cc: Hoang-Nam Nguyen , linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, Marcus Eder , openib-general@openib.org, openib-general-bounces@openib.org, Christoph Raisch , Roland Dreier Subject: Re: Re: [PATCH 07/16] ehca: interrupt handling routines Message-ID: <20060509185533.GG22825@mellanox.co.il> Reply-To: "Michael S. Tsirkin" References: <20060509184451.GF22825@mellanox.co.il> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i X-OriginalArrivalTime: 09 May 2006 18:58:33.0578 (UTC) FILETIME=[91DA04A0:01C6739A] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 653 Lines: 18 Quoting r. Shirley Ma : > No, CPU utilization wasn't reduced. When you use single CQ, NAPI polls on both RX/TX. I think NAPI's point is to reduce the interrupt rate. Wouldn't this reduce CPU load? > netperf, iperf, mpstat, netpipe, oprofiling, what's your suggestion? netperf has -C which gives CPU load, which is handy. Running vmstat in another window also works reasoably well. -- MST - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/