From mboxrd@z Thu Jan 1 00:00:00 1970 From: trem Subject: Re: 2.6.24.7-rt14 Date: Sat, 28 Jun 2008 15:19:22 +0200 Message-ID: References: <1214256117.8701.13.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-kernel@vger.kernel.org To: linux-rt-users@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:58914 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751988AbYF1NXO (ORCPT ); Sat, 28 Jun 2008 09:23:14 -0400 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1KCaOU-0008TO-JA for linux-rt-users@vger.kernel.org; Sat, 28 Jun 2008 13:23:10 +0000 Received: from atoulouse-256-1-67-205.w86-205.abo.wanadoo.fr ([86.205.194.205]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 28 Jun 2008 13:23:10 +0000 Received: from tremyfr by atoulouse-256-1-67-205.w86-205.abo.wanadoo.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 28 Jun 2008 13:23:10 +0000 In-Reply-To: <1214256117.8701.13.camel@localhost.localdomain> Sender: linux-rt-users-owner@vger.kernel.org List-ID: Hi I've done some test with cyclictest on -rt13 and -r14, and I'm surprise= of the result. To do this test, I've installed a -rt13 and -rt14 on a box, rebooted on= a kernel, and run this command (no other command). Of course, the .config is the = same for both kernel. On -rt13, I've got this : [trem@localhost rt-tests]$ sudo ./cyclictest -t 1 -p 80 -n -i 10000 -l = 100000 1.00 0.97 0.69 1/158 4177 =20 T: 0 ( 4177) P:80 I:10000 C: 100000 Min: 1 Act: 2 Avg: 2 Max= : 10 On -rt14, I4ve got this : [trem@localhost rt-tests]$ sudo ./cyclictest -t 1 -p 80 -n -i 10000 -l = 100000 1.00 0.97 0.70 1/158 4132 =20 T: 0 ( 4125) P:80 I:10000 C: 100000 Min: 1 Act: 6 Avg: 2 Max= : 17 The Max is clearly higher on -rt14. regards, Philippe (trem) Steven Rostedt a =E9crit : > We are pleased to announce the 2.6.24.7-rt14 tree, which can be > downloaded from the location: >=20 > http://rt.et.redhat.com/download/ >=20 > Information on the RT patch can be found at: >=20 > http://rt.wiki.kernel.org/index.php/Main_Page >=20 > Changes since 2.6.24.7-rt13 >=20 > - rwlock pi_lock fixes on waking up multiple readers (Steven Rosted= t) >=20 > - revert adaptive locks from RCU (Thomas Gleixner) > [ for some reason, using RCU causes some latency spikes, this > may be a sign of something going wrong in RCU itself ] >=20 > - rwlock mutex owner fix for waking up reader with readers held (St= even Rostedt) >=20 > - rwlock remove waiter from pi_list on above fix (Steven Rostedt an= d > Thomas Gleixner) >=20 > - rwlock replace macro with inline (Thomas Gleixner) >=20 > - rwlock pending namespace updates (Thomas Gleixner) >=20 > - rwlock debug check (Thomas Gleixner) >=20 > - futex fix fault (Thomas Gleixner) >=20 > - x86_64 fix copy user (Linus Torvalds) >=20 > to build a 2.6.24.7-rt14 tree, the following patches should be applie= d: >=20 > http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.24.tar.bz2 > http://kernel.org/pub/linux/kernel/v2.6/patch-2.6.24.7.bz2 > http://rt.et.redhat.com/download/patch-2.6.24.7-rt14.bz2 >=20 >=20 > And like always, my RT version of Matt Mackall's ketchup will get thi= s > for you nicely: >=20 > http://people.redhat.com/srostedt/rt/tools/ketchup-0.9.8-rt3 >=20 >=20 > The broken out patches are also available. >=20 >=20 >=20 > -- Steve >=20 >=20 >=20 > -- > To unsubscribe from this list: send the line "unsubscribe linux-rt-us= ers" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20 -- To unsubscribe from this list: send the line "unsubscribe linux-rt-user= s" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html