From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <48A2FC17.9070302@redhat.com> Date: Wed, 13 Aug 2008 08:21:59 -0700 From: Ulrich Drepper MIME-Version: 1.0 Subject: Re: pthread_create() slow for many threads; also time to revisit 64b context switch optimization? References: <20080813104445.GA24632@elte.hu> <20080813063533.444c650d@infradead.org> <48A2EE07.3040003@redhat.com> <20080813142529.GB21129@elte.hu> <48A2F157.7000303@redhat.com> <20080813151007.GA8780@elte.hu> In-Reply-To: <20080813151007.GA8780@elte.hu> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Molnar Cc: 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" List-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ingo Molnar wrote: > i find it pretty unacceptable these days that we limit any aspect of > pure 64-bit apps in any way to 4GB (or any other 32-bit-ish limit). Sure, but if we can pin-point the sub-archs for which it is the problem then a flag to optionally request it is even easier to handle. You'd simply ignore the flag for anything but the P4 architecture. I personally have no problem removing the whole thing because I have no such machine running anymore. But there are people out there who have. - -- a?? Ulrich Drepper a?? Red Hat, Inc. a?? 444 Castro St a?? Mountain View, CA a?? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkii/BcACgkQ2ijCOnn/RHQ8FACfZFV+WaBmS6UNqZZ/xDfV/Z7z gIAAoJSmbauchdaIVIebz8N2rPrszAMF =WAzJ -----END PGP SIGNATURE----- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org