Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264448AbUDSNqy (ORCPT ); Mon, 19 Apr 2004 09:46:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264420AbUDSNhN (ORCPT ); Mon, 19 Apr 2004 09:37:13 -0400 Received: from mail.shareable.org ([81.29.64.88]:14500 "EHLO mail.shareable.org") by vger.kernel.org with ESMTP id S264418AbUDSN3V (ORCPT ); Mon, 19 Apr 2004 09:29:21 -0400 Date: Mon, 19 Apr 2004 14:28:36 +0100 From: Jamie Lokier To: Johannes Stezenbach , Eric , linux-kernel@vger.kernel.org, "Stephan T. Lavavej" Subject: Re: Process Creation Speed Message-ID: <20040419132836.GA14341@mail.shareable.org> References: <200404170219.i3H2JYal007333@localhost.localdomain> <200404182115.20922.eric@cisu.net> <20040419030456.GA11717@mail.shareable.org> <200404190043.04358.eric@cisu.net> <20040419094833.GB13007@mail.shareable.org> <20040419120957.GB3764@convergence.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040419120957.GB3764@convergence.de> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 787 Lines: 17 Johannes Stezenbach wrote: > > > > None of this answers the question which is relevant to linux-kernel: > > > > why does process creation take 7.5ms and fail to scale with CPU > > > > internal clock speed over a factor of 4 (600MHz x86 to 2.2GHz x86). > > http://bulk.fefe.de/scalability/ has some benchmarks on the issue. > But I guess the numbers depend heavily on the server/CGI software used. Nice page. The graphs there show fork() taking 250-350 microseconds, which is quite fast. Where is the 7.5ms complaint coming from? -- Jamie - 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/