From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Brownell Subject: Re: Preempt-RT on OMAP3? Date: Mon, 6 Apr 2009 03:25:45 -0700 Message-ID: <200904060325.45758.david-b@pacbell.net> References: <5a7b8b7b0904052025g74325484h66335606bebea5a3@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from smtp125.sbc.mail.sp1.yahoo.com ([69.147.65.184]:45551 "HELO smtp125.sbc.mail.sp1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754826AbZDFKZs (ORCPT ); Mon, 6 Apr 2009 06:25:48 -0400 In-Reply-To: <5a7b8b7b0904052025g74325484h66335606bebea5a3@mail.gmail.com> Content-Disposition: inline Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Hugo Vincent Cc: linux-omap@vger.kernel.org On Sunday 05 April 2009, Hugo Vincent wrote: > I'm trying to get the realtime patch set to work on OMAP3 (Gumstix > Overo). Linux-omap 2.6.29 with the RT patches -rt1 or -rt2 work mostly > as is (MUSB and the usb-gadget layer have quite a few problems, and Like what? Way back in 2.6.10 MUSB behaved relatively sanely. But that's a while back. ;) > the realtime self-test stuff picks up a few problems to do with > spinlock usage etc, but most things seem to mostly work correctly for > my needs). Running cyclictest with various types of loads gives an > average latency of ~30-50 usec and worst case up around 300 usec.