On 2/11/2012 3:25 PM, gene heskett wrote: > Greetings all; > > Sorta one of those days to hibernate, 3" of snow blowing all over, 19F etc > in north central WV today. > > So I'm sitting here with a couple ssh sessions going to that box, motor > power off etc. > > I found that installing ksysguard give me a remote system monitoring > facility, and am hoping its not lying to me. > > My base_thread is 20,000 now, which would I would think, show up as several > percent of the 2nd cpu, the red line in the ksysguard system tabs display. > When linuxcnc isn't running, I see, possibly at 10 second intervals, a > barely visible spike to perhaps 0.5%, with isolcpus=1 in effect I've no > clue what that might be. > > With linuxcnc running (without the taskset launch), and carving the logo, I > see an occasional spike to perhaps 2% at about that same 10 second > interval. And a spike to maybe 5% if I do something in axis like adjust > the feed override slider. > > With a 20 microsecond base thread, and a 3 microsecond reset timing set in > the .hal file, ISTM that core 2's usage should be higher that that. I do > see in this utilities process list, an 'rtkit' that is caught using 2 or 3% > very occasionally. And the hal_manual_tool_change shows up too. > > Keyboard response from here of course includes the network lags, but seems > good enough that at a .28ipm jog rate, I can jog it half a thou with a > quick tap on an arrow key. This, with a 30 microsecond base thread on the > old machine, would not have been possible because it would run on for > several seconds after the key was released. Whether I get the same results > from its local keyboard remains to be seen and may be the result of running > axis on a remote display& not burning cpu cycles for the local display > since this boxes nvidia driven display is probably 20x faster than that > machines intel based display is. > > > From this I get the impression that an additional box with good gfx might > be a huge advantage even if the network cable was only 6 feet long. > > Discussion? > > Am I using the wrong tools to track this? > > In which case what tool should I be using? > > Thanks and Cheers, Gene >
Gene, About tracking that occasional blip on the isolcpu, have you used atop? Consider it a "top" on steroids. It shows processes running much like top, but also displays what cpu they are running on. Here's the atop web site: http://www.atoptool.nl Click on the screen shots and take a peek at what atop has over the top utility. I use it at work. Mark ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
