From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29089 invoked by alias); 30 Mar 2003 23:59:49 -0000 Mailing-List: contact libc-hacker-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-hacker-owner@sources.redhat.com Received: (qmail 29073 invoked from network); 30 Mar 2003 23:59:49 -0000 Received: from unknown (HELO gateway.sf.frob.com) (64.160.55.131) by sources.redhat.com with SMTP; 30 Mar 2003 23:59:49 -0000 Received: from magilla.sf.frob.com (magilla.sf.frob.com [198.49.250.228]) by gateway.sf.frob.com (Postfix) with ESMTP id 41FC7354C; Sun, 30 Mar 2003 15:59:48 -0800 (PST) Received: (from roland@localhost) by magilla.sf.frob.com (8.11.6/8.11.6) id h2UNxln00873; Sun, 30 Mar 2003 15:59:47 -0800 Date: Mon, 31 Mar 2003 07:18:00 -0000 Message-Id: <200303302359.h2UNxln00873@magilla.sf.frob.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: Jakub Jelinek Cc: Ulrich Drepper , Glibc hackers Subject: Re: [PATCH] sparc* bits/atomic.h In-Reply-To: Jakub Jelinek's message of Sunday, 30 March 2003 18:47:00 -0500 <20030330184700.J13397@devserv.devel.redhat.com> X-Shopping-List: (1) Eugenic gold (2) Irritating obnoxious pencils (3) Significant corruption (4) Wishy-washy acne intrusions X-SW-Source: 2003-03/txt/msg00145.txt.bz2 > On Sun, Mar 30, 2003 at 03:40:01PM -0800, Roland McGrath wrote: > > > sparc32 (not v9) lacks compare and swap, so it is implemented using > > > test-and-set and a global lock. IMHO better than no locking at all, > > > performance will suck as usually on those aging boxes. > > > > Are there any actual MP boxes using those chips that Linux runs on? > > Yes, there are. Oh well, tough noogies for them.