From owner-freebsd-arch@FreeBSD.ORG Mon Jun 5 17:26:55 2006 Return-Path: X-Original-To: freebsd-arch@freebsd.org Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 64B1B16A5A6 for ; Mon, 5 Jun 2006 17:26:55 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from wx-out-0102.google.com (wx-out-0102.google.com [66.249.82.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id 988C043D46 for ; Mon, 5 Jun 2006 17:26:54 +0000 (GMT) (envelope-from asmrookie@gmail.com) Received: by wx-out-0102.google.com with SMTP id i31so774352wxd for ; Mon, 05 Jun 2006 10:26:53 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:sender:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=G0l6KDWilDMBe1X3v+0UJq5eeZOCAuTZpmbNJVfM3HXbSxd+JezeE7YMpQAYJhj4KseX/8eHj6nmlQcMGUecW9j2txEr1VuQbnasvfLn4I0GNkfG+yNEccGVl3DhzSa1xgqQpgYU0BYGXzJe0IvorfQENv94Rpk5QUmdUulZe/Y= Received: by 10.70.59.6 with SMTP id h6mr6296101wxa; Mon, 05 Jun 2006 10:26:53 -0700 (PDT) Received: by 10.70.37.15 with HTTP; Mon, 5 Jun 2006 10:26:53 -0700 (PDT) Message-ID: <3bbf2fe10606051026k7a9bcba4udea9ce369fea6ce4@mail.gmail.com> Date: Mon, 5 Jun 2006 19:26:53 +0200 From: "Attilio Rao" Sender: asmrookie@gmail.com To: "Poul-Henning Kamp" , freebsd-arch@freebsd.org, "Robert Watson" In-Reply-To: <20279.1149527318@critter.freebsd.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200606051700.k55H0OeJ092393@chez.mckusick.com> <20279.1149527318@critter.freebsd.dk> X-Google-Sender-Auth: da6fcc5fa0bec17e Cc: Subject: Re: Why use `thread' as an argument of Syscalls? X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Jun 2006 17:27:05 -0000 2006/6/5, Poul-Henning Kamp : > It would be a good Junior Kernel Hacker project to try to replace > these passed arguments with curproc and see if a measurable difference > in performance is obtained. There's another thing to consider: having an argument-passing structure, will improve 'reentrancy' of the kernel. Attilio -- Peace can only be achieved by understanding - A. Einstein