From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Anholt Subject: Re: [PATCH 4/4] cpuidle: Hack iowait weighting to avoid C-state reduction for graphics. Date: Tue, 02 Nov 2010 08:42:24 -0700 Message-ID: <87fwvj7mvz.fsf@pollan.anholt.net> References: <1288643024-5706-1-git-send-email-eric@anholt.net> <1288643024-5706-5-git-send-email-eric@anholt.net> <1288700414.26046.18.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1220887265==" Return-path: In-Reply-To: <1288700414.26046.18.camel@localhost.localdomain> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: ykzhao Cc: linux-acpi@vger.kernel.org, "intel-gfx@lists.freedesktop.org" , arjan@linxu.intel.com List-Id: intel-gfx@lists.freedesktop.org --===============1220887265== Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" --=-=-= Content-Transfer-Encoding: quoted-printable On Tue, 02 Nov 2010 20:20:14 +0800, ykzhao wrote: > On Tue, 2010-11-02 at 04:23 +0800, Eric Anholt wrote: > > Improves nexuiz performance by about 1% on my system. >=20 > CC: Arjan and linux-acpi mailing list. >=20 > It seems that the selection of C-state will become very sensitive to IO > wait after the multi factor is changed from 10 to 1000. > Maybe only one IO/wait will bring that the system can't enter the deep > C-state. Note the original message that said "This patch series is a hack, if it helps anyone I'll rewrite it to do the right thing". --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAkzQMWAACgkQHUdvYGzw6vd6ZwCgiFtCYfrkVo/XHXSUbnC+wFi/ yWsAn0AVV1fdm7g4cnk2GhQnqstQaxj1 =rCVF -----END PGP SIGNATURE----- --=-=-=-- --===============1220887265== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx --===============1220887265==--