From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: loaded router, excessive getnstimeofday in oprofile Date: Wed, 27 Aug 2008 18:27:35 +0200 Message-ID: <20080827162735.GW26610@one.firstfloor.org> References: <200808220457.40892.denys@visp.net.lb> <20080826201406.GA24827@2ka.mipt.ru> <48B46B48.7030609@cosmosbay.com> <20080826205158.GA15266@2ka.mipt.ru> <87vdxmr53f.fsf@basil.nowhere.org> <48B57BD3.5050206@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andi Kleen , Evgeniy Polyakov , Eric Dumazet , Denys Fedoryshchenko , netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Rick Jones Return-path: Received: from one.firstfloor.org ([213.235.205.2]:50266 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756857AbYH0QZE (ORCPT ); Wed, 27 Aug 2008 12:25:04 -0400 Content-Disposition: inline In-Reply-To: <48B57BD3.5050206@hp.com> Sender: netdev-owner@vger.kernel.org List-ID: > Those banks really want to crank down on latency - to the point they > start disabling interrupt coalescing. I bet they'd toss anything out > they could to shave another microsecond. This change would actually likely lower their latency. -Andi