From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philippe Gerum In-Reply-To: References: Content-Type: text/plain Date: Thu, 23 Apr 2009 11:37:11 +0200 Message-Id: <1240479431.6990.30.camel@domain.hid> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] adeos patch 2.6.28.9-x86-2.2-07 feedback List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: vikesh rambaran Cc: xenomai-help On Thu, 2009-04-23 at 11:20 +0200, vikesh rambaran wrote: > Hi > > Thanx for the updated patch. Some feedback ... > > I tested it with Xenomai 2.4.7 under Ubuntu 8.04.2 on three different > platforms > (AMD Athlon Desktop, Intel Core 2 Desktop, Intel Core Duo Laptop) > > Typical system lockups when in the gnome desktop do NOT occur > anymore ! Great :) > > Initial observations when compared to Xenomai 2.4.5 with > adeos-ipipe-2.6.24-x86-2.0-07.patch. : > > 1. Latency test shows a slight increase of about 5 to 10 % on the > Intel platforms. > (Still need to do the comparison on the AMD platform). This translates > to less than 5 uS > so it's ok for our case. > > 2. On the Intel Core 2 Desktop, our application has a much more > significant max scheduling jitter > of about 125 uS (compared with < 60uS for Xenomia 2.4.5). This > 'increased jitter' does not > show up on the other two platforms. Still trying to trace this one. Time for an I-pipe tracer log, with latency -f. I guess this pathological jitter should trigger with standard tests as well; if it does not, well, there might be other regression spots in the APIs. .config would help as well. TIA, > Already played around with > different ACPI and SMI settings, but no joy (: > > > Keep well > Vicki > > _______________________________________________ > Xenomai-help mailing list > Xenomai-help@domain.hid > https://mail.gna.org/listinfo/xenomai-help -- Philippe.