On 11/14/2012 2:19 AM, John Morris wrote: > While sitting around waiting for the umpteenth time for the Xenomai > kernel to build, this time with Michael's config just to help narrow > things down, I compiled up LinuxCNC xenomai-user. > > Latency-test works. And on the same kernel that, combined with > xenomai-kernel, hangs! 64-bit uniprocessor running several glxgears > (why's that the test we always use?), loading up Firefox with a buggy > load of saved tabs, compiling that same xenomai kernel and spinning > shapes around in FreeCAD, latency-test reported 7ms/6ms jitter. Sorry, John, I lost the bubble. What CPU/motherboard/etc was this?
As for the silly glxgears test, I think the original intent was to use it as a quick exercise of the X/OpenGL/driver path and perhaps as a benchmark of the graphics performance if the path works (although graphics guys are quick to tell us it isn't a benchmark). For latency testing purposes, it might help smoke out problems with the graphics subsystem---some drivers and some chips grab hold of DMA for example. Obviously, we've not thought our way through anything resembling a proper test suite. Regards, Kent ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
