From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965562AbXCAUUL (ORCPT ); Thu, 1 Mar 2007 15:20:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965563AbXCAUUL (ORCPT ); Thu, 1 Mar 2007 15:20:11 -0500 Received: from densedata.com ([217.160.171.7]:2195 "EHLO densedata.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965562AbXCAUUJ (ORCPT ); Thu, 1 Mar 2007 15:20:09 -0500 Message-ID: <45E738C3.7010807@densedata.com> Date: Thu, 01 Mar 2007 21:34:11 +0100 From: Johann Borck User-Agent: Icedove 1.5.0.9 (X11/20061220) MIME-Version: 1.0 To: David Lang CC: linux-kernel@vger.kernel.org Subject: Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3 References: <20070222074044.GA4158@elte.hu> <20070222113148.GA3781@2ka.mipt.ru> <20070226172812.GC22454@2ka.mipt.ru> <20070226195416.GA11188 <20070301081808.GD7217@2ka.mipt.ru> <45E7287D.7000104@densedata.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org David Lang wrote: > > On Thu, 1 Mar 2007, Johann Borck wrote: > >> I reported this a while ago and suggested to have the number of >> pending accepts reported with the event to save that last syscall. >> I created an ab replacement based on kevent, and at least with my >> machines, which are comparable to each other, the load on client >> dropped from 100% to 2% or something. ab just doesn't give meaningful >> results (if the client is not way more powerful). With that new >> client I get very similar results for epoll and kevent, from 1000 >> through to 26000 concurrent requests, the results have been posted on >> kevent-homepage in october, I just checked it with new version, but >> there's no significant difference. >> >> this is the benchmark with kevent-based client: >> http://tservice.net.ru/~s0mbre/blog/2006/10/11#2006_10_11 >> btw, each result is average over 1,000,000 requests >> >> and just for comparison, this is on the same machines using ab: >> http://tservice.net.ru/~s0mbre/blog/2006/10/08#2006_10_08 > > is this client avaialble? and what patches need to be added to the > kernel to use it? > It's based on an older version of kevent, so I'll have to adapt it a bit for use with recent patch, no other than kevent is necessary. I'll post a link when it's cleaned up, if you want. Johann > David Lang >