Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262279AbTEFCgq (ORCPT ); Mon, 5 May 2003 22:36:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262280AbTEFCgp (ORCPT ); Mon, 5 May 2003 22:36:45 -0400 Received: from TYO202.gate.nec.co.jp ([202.32.8.202]:60923 "EHLO TYO202.gate.nec.co.jp") by vger.kernel.org with ESMTP id S262279AbTEFCgl (ORCPT ); Mon, 5 May 2003 22:36:41 -0400 To: Mark Grosberg Cc: "Richard B. Johnson" , linux-kernel@vger.kernel.org Subject: Re: [RFD] Combined fork-exec syscall. References: Reply-To: Miles Bader System-Type: i686-pc-linux-gnu Blat: Foop From: Miles Bader Date: 06 May 2003 11:48:57 +0900 In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 877 Lines: 16 Mark Grosberg writes: > And maybe on your 797.90 BogoMips super fast machine the extra syscall > doesn't matter. But on my current server hardware (16.59 BogoMIPS) it is a > savings. Are you sure it's really all that bad? The machines I use are even slower (~6 bogomips), but system calls still seem pretty fast; I've measured them as having about a total 65-instruction overhead on my arch -- which is a lot slower than a function call to be sure, but presumably the actual work done by the system call ends up being more. -Miles -- `The suburb is an obsolete and contradictory form of human settlement' - 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/