Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2992670AbWKAQxO (ORCPT ); Wed, 1 Nov 2006 11:53:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S2992675AbWKAQxO (ORCPT ); Wed, 1 Nov 2006 11:53:14 -0500 Received: from mailer.campus.mipt.ru ([194.85.82.4]:13785 "EHLO mailer.campus.mipt.ru") by vger.kernel.org with ESMTP id S2992670AbWKAQxM (ORCPT ); Wed, 1 Nov 2006 11:53:12 -0500 Date: Wed, 1 Nov 2006 19:24:03 +0300 From: Evgeniy Polyakov To: Pavel Machek Cc: David Miller , Ulrich Drepper , Andrew Morton , netdev , Zach Brown , Christoph Hellwig , Chase Venters , Johann Borck , linux-kernel@vger.kernel.org Subject: Re: [take22 0/4] kevent: Generic event handling mechanism. Message-ID: <20061101162403.GA29783@2ka.mipt.ru> References: <1154985aa0591036@2ka.mipt.ru> <1162380963981@2ka.mipt.ru> <20061101130614.GB7195@atrey.karlin.mff.cuni.cz> <20061101132506.GA6433@2ka.mipt.ru> <20061101160551.GA2598@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <20061101160551.GA2598@elf.ucw.cz> User-Agent: Mutt/1.5.9i X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-1.7.5 (mailer.campus.mipt.ru [194.85.82.4]); Wed, 01 Nov 2006 19:40:37 +0300 (MSK) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-1.7.5 (2ka.mipt.ru [0.0.0.0]); Wed, 01 Nov 2006 19:25:23 +0300 (MSK) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1135 Lines: 28 On Wed, Nov 01, 2006 at 05:05:51PM +0100, Pavel Machek (pavel@ucw.cz) wrote: > Hi! Hi Pavel. > > Kevent is a generic subsytem which allows to handle event notifications. > > It supports both level and edge triggered events. It is similar to > > poll/epoll in some cases, but it is more scalable, it is faster and > > allows to work with essentially eny kind of events. > > Quantifying "how much more scalable" would be nice, as would be some > example where it is useful. ("It makes my webserver twice as fast on > monster 64-cpu box"). Trivial kevent web-server can handle 3960+ req/sec on Xeon 2.4Ghz with 1Gb RAM, epoll based - 2200-2500 req/sec. 100 Mbit wire is filled almost 100% (10582.7 KB/s of data without TCP and below headers). More benchmarks created by me and Johann Borck can be found on project's homepage as long as all my sources used in tests. -- Evgeniy Polyakov - 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/