Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753384AbZAFNHt (ORCPT ); Tue, 6 Jan 2009 08:07:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751630AbZAFNHh (ORCPT ); Tue, 6 Jan 2009 08:07:37 -0500 Received: from victor.provo.novell.com ([137.65.250.26]:40379 "EHLO victor.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751557AbZAFNHg (ORCPT ); Tue, 6 Jan 2009 08:07:36 -0500 Message-ID: <4963584A.4090805@novell.com> Date: Tue, 06 Jan 2009 08:10:34 -0500 From: Gregory Haskins User-Agent: Thunderbird 2.0.0.18 (X11/20081112) MIME-Version: 1.0 To: Ingo Molnar CC: Peter Zijlstra , Matthew Wilcox , Andi Kleen , Chris Mason , Andrew Morton , linux-kernel@vger.kernel.org, linux-fsdevel , linux-btrfs , Thomas Gleixner , Steven Rostedt , Nick Piggin , Linus Torvalds Subject: Re: [PATCH][RFC]: mutex: adaptive spin References: <1230722935.4680.5.camel@think.oraclecorp.com> <20081231104533.abfb1cf9.akpm@linux-foundation.org> <1230765549.7538.8.camel@think.oraclecorp.com> <87r63ljzox.fsf@basil.nowhere.org> <20090103191706.GA2002@parisc-linux.org> <1231093310.27690.5.camel@twins> <20090104184103.GE2002@parisc-linux.org> <1231242031.11687.97.camel@twins> <20090106121052.GA27232@elte.hu> In-Reply-To: <20090106121052.GA27232@elte.hu> X-Enigmail-Version: 0.95.7 OpenPGP: id=D8195319 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig13FC11A962D1BDDF958F15C6" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1455 Lines: 40 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig13FC11A962D1BDDF958F15C6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Ingo Molnar wrote: > There's no time or spin-rate based heuristics in this at all (i.e. thes= e=20 > mutexes are not 'adaptive' at all!), FYI: The original "adaptive" name was chosen in the -rt implementation to reflect that the locks can adaptively spin or sleep, depending on conditions. I realize this is in contrast to the typical usage of the term when it is in reference to the spin-time being based on some empirical heuristics, etc as you mentioned. Sorry for the confusion. Regards, -Greg --------------enig13FC11A962D1BDDF958F15C6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkljWEoACgkQlOSOBdgZUxn72ACfS2VJ9HA2Q3Ud+FqozlY40nMI +EYAn0l0nsRQfX7uZlf6PYlqYL9fGuNb =hQ/V -----END PGP SIGNATURE----- --------------enig13FC11A962D1BDDF958F15C6-- -- 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/