Return-Path: Mailing-List: contact tomcat-user-help@jakarta.apache.org; run by ezmlm Delivered-To: mailing list tomcat-user@jakarta.apache.org Received: (qmail 99316 invoked from network); 2 Feb 2001 20:16:51 -0000 Received: from proxycas.softwaredesign.com.br (200.245.10.242) by h31.sny.collab.net with SMTP; 2 Feb 2001 20:16:51 -0000 Received: (from root@localhost) by proxycas.softwaredesign.com.br (8.9.3/8.9.3) id SAA21725 for tomcat-user@jakarta.apache.org; Fri, 2 Feb 2001 18:16:50 -0200 Received: from softwaredesign.com.br (maq146.softwaredesign.com.br [10.0.0.146]) by proxycas.softwaredesign.com.br (8.9.3/8.9.3) with ESMTP id SAA21685 for ; Fri, 2 Feb 2001 18:16:49 -0200 Message-ID: <3A7B15FF.2000009@softwaredesign.com.br> Date: Fri, 02 Feb 2001 18:18:07 -0200 From: =?ISO-8859-1?Q?Rog=E9rio?= Meneguelli Gatto Organization: Software Design =?ISO-8859-1?Q?Inform=E1tica?= Ltda User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; m18) Gecko/20001108 Netscape6/6.0 X-Accept-Language: pt-br, en MIME-Version: 1.0 To: tomcat-user@jakarta.apache.org Subject: Re: performance References: <3A7B095B.87AAFD2A@rubysolutions.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-scanner: scanned by Inflex 0.1.5 - (http://www.inflex.co.za/) X-Spam-Rating: h31.sny.collab.net 1.6.2 0/1000/N Steve Ruby wrote: > I've heard that there is only an advantage to running native-threads > in an SMP situation, my results don't support that AT ALL.. This is just a guess, but I'd say IO blocking is responsible for the better native threads results. In green threads mode, there's only one OS thread, and if you block on IO your whole application hangs; on native threads, only the actual caller thread will block. And Servlets and JDBC are all about IO... BTW, I've been using IBM JDK 1.3.0 on linux 2.2.18, native threads, and am very satisfied. -- Rog�rio Meneguelli Gatto | ICQ# 25775025 Analista de Sistemas Pleno | +55 19 3254-6518 ext 223 Software Design Inform�tica | http://www.softwaredesign.com.br God is a comic playing to an audience that's afraid to laugh