Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760691AbYHOTBU (ORCPT ); Fri, 15 Aug 2008 15:01:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758066AbYHOTBD (ORCPT ); Fri, 15 Aug 2008 15:01:03 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:49832 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758030AbYHOTBB (ORCPT ); Fri, 15 Aug 2008 15:01:01 -0400 Date: Fri, 15 Aug 2008 21:00:34 +0200 From: Ingo Molnar To: Ulrich Drepper Cc: Jamie Lokier , Arjan van de Ven , akpm@linux-foundation.org, hugh@veritas.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, briangrant@google.com, cgd@google.com, mbligh@google.com, Linus Torvalds , Thomas Gleixner , "H. Peter Anvin" Subject: Re: pthread_create() slow for many threads; also time to revisit 64b context switch optimization? Message-ID: <20080815190034.GA15356@elte.hu> References: <48A2F157.7000303@redhat.com> <20080813151007.GA8780@elte.hu> <48A2FC17.9070302@redhat.com> <20080813154043.GA11886@elte.hu> <48A303EE.8070002@redhat.com> <20080813160218.GB18037@elte.hu> <20080815155457.GA5210@shareable.org> <48A5B943.1010607@gmail.com> <20080815171913.GB23600@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 811 Lines: 26 * Ulrich Drepper wrote: > On Fri, Aug 15, 2008 at 10:19 AM, Ingo Molnar wrote: > > ( also, just to make sure: all Linux kernel versions will ignore such > > extra flags, so you can just update glibc to use this flag > > unconditionally, correct? ) > > As soon as the patch hits Linus' tree I can change the code. it's upstream now: | commit cd98a04a59e2f94fa64d5bf1e26498d27427d5e7 | Author: Ingo Molnar | Date: Wed Aug 13 18:02:18 2008 +0200 | | x86: add MAP_STACK mmap flag thanks everyone, Ingo -- 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/