From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vasily Khoruzhick Subject: Re: Interrupt latency on some 945GM platforms Date: Wed, 15 Sep 2010 10:07:09 +0300 Message-ID: <201009151007.14212.anarsoul@gmail.com> References: <201009132336.17310.anarsoul@gmail.com> <201009141529.53179.anarsoul@gmail.com> <20100914224111.GA14467@sucs.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1313060967==" Return-path: Received: from mail-ew0-f49.google.com (mail-ew0-f49.google.com [209.85.215.49]) by gabe.freedesktop.org (Postfix) with ESMTP id 09F789E7F0 for ; Wed, 15 Sep 2010 00:08:14 -0700 (PDT) Received: by ewy9 with SMTP id 9so4048072ewy.36 for ; Wed, 15 Sep 2010 00:08:14 -0700 (PDT) In-Reply-To: <20100914224111.GA14467@sucs.org> 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: Sitsofe Wheeler Cc: Venkatesh Pallipadi , Thomas Gleixner , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org --===============1313060967== Content-Type: multipart/signed; boundary="nextPart2859747.OCWnCCh9yA"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit --nextPart2859747.OCWnCCh9yA Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =D0=92 =D1=81=D0=BE=D0=BE=D0=B1=D1=89=D0=B5=D0=BD=D0=B8=D0=B8 =D0=BE=D1=82 = 15 of September 2010 01:41:11 =D0=B0=D0=B2=D1=82=D0=BE=D1=80 Sitsofe Wheele= r =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB: > On Tue, Sep 14, 2010 at 03:29:48PM +0300, Vasily Khoruzhick wrote: > > =D0=92 =D1=81=D0=BE=D0=BE=D0=B1=D1=89=D0=B5=D0=BD=D0=B8=D0=B8 =D0=BE=D1= =82 14 of September 2010 12:52:57 =D0=B0=D0=B2=D1=82=D0=BE=D1=80 Thomas Gle= ixner=20 =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB: > > > Can you try with NOHZ enabled and the following on the kernel command= =20 line: > > > processor.max_cstate=3D1 > >=20 > > It works in this case (gears in glxgears move smoothly) > >=20 > > > If that works, then try > > >=20 > > > processor.max_cstate=3D2 > >=20 > > Nope, it doesn't work with max_cstate=3D2 >=20 > Perhaps intel_idle is being used? Any mention of it in dmesg? Nope, acpi_idle is being used, intel_idle doesn't support my CPU (it's c2d= =20 t5500): [ 0.653279] intel_idle: does not run on family 6 model 15 Regards Vasily --nextPart2859747.OCWnCCh9yA Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) iEYEABECAAYFAkyQcKIACgkQRM6pQpltKE7cxACfXLp0iVRlxazmUnJINtstDaPw ETQAn0k7uo7Udgqt6VUkH8f67kHfE9RQ =Odja -----END PGP SIGNATURE----- --nextPart2859747.OCWnCCh9yA-- --===============1313060967== 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 --===============1313060967==--