Did you already reconfugure it as a 2-core system and perharps also disable the Hyperthreading?
On Fri, Feb 6, 2009 at 12:36 PM, Eric H. Johnson <[email protected]> wrote: > Hi all, > > I now have a working system running with an SMP enabled kernel, including > the necessary drivers. I am getting some odd results both from latency-test > and running EMC. Here are the results I got from latency-test on xubuntu > without SMP enabled: > > Max Interval Max Jitter > Servo Thread 1002816 6484 > Base Thread 30998 7148 > > > On the SMP kernel, I am generally getting worse results, and when I run my > configuration from the non-SMP kernel, I will get an overrun error at > startup that I don't get when run on the non-smp kernel. > > Here are typical results: > > Max Interval Max Jitter > Servo Thread 995748 6514 > Base Thread 30712 6028 > > But I had one instance (run for 15 minutes or so) as good as: > > Max Interval Max Jitter > Servo Thread 994058 5192 > Base Thread 29517 4997 > > I have also had instances where Max Jitter exceeded 10000. The thing is, if > I get a high value, it happens right after I start latency test. It very > rarely will get larger than the initial large value. > > So I am wondering if this is an anomaly of both the way latency-test and emc > / realtime start up, or if the results are really that bad. The max interval > values are consistently better, plus watching last interval generally gives > values approximately averaging 991000 and 24750 respectively which are > better than when run on the non-smp kernel. > > Regards, > Eric > > > > > ------------------------------------------------------------------------------ > Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) > software. With Adobe AIR, Ajax developers can use existing skills and code to > build responsive, highly engaging applications that combine the power of local > resources and data with the reach of the web. Download the Adobe AIR SDK and > Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
