On 1/30/2012 11:35 PM, gene heskett wrote: > On Monday, January 30, 2012 10:57:23 PM Kent A. Reed did opine: > >> On 1/30/2012 8:36 PM, gene heskett wrote: >>> Greetings all; >>> >>> Just in the last day it has come to my attention that both >>> emc-2.6.0-pre (latest emc from buildbot, master-rt branch) and the >>> slightly newer renamed linuxcnc-2.6.0-pre (latest from buildbot) are >>> both running exclusively on cpu0, and about tapping it out, even at >>> 65 u-sec base loop, keyboard response from either is in the 1+ second >>> area, and a G39.2 z2.0 virtually crushed the pcb contact the full >>> 1/16" of clearance under it, putting a good mark and an extremely >>> visible sag in the middle before it got stopped. >>> >>> <...> >>> >>> Cheers, Gene >> Gene: >> >> <...> >> >> What's your evidence that LinuxCNC is running exclusively on cpu0? Don't >> forget that all the realtime stuff is running on the isolated cpu. It's >> the userspace stuff like axis that is running on the nonisolated cpu and >> that shows up in process listings (ps, top, etc). > > top only shows one cpu, fairly busy, > > htop shows 2 cpu's with the 2nd one sitting at 0.0% use. > > gkrellm shows cpu0 as being quite busy, but cpu1 is sitting steadfastly at > 0% usage. But AFAIK top, htop, and gkrellm all work by querying the processes running on the non-isolated cpu (through /proc is my guess, but I'm too tired to look). If this is so, the cpu1 number doesn't mean anything. > A week ago, gkrellm showed cpu1 usage only when emc was running, so > something has definitely changed in the last few days. This puzzles me. By my argument above, it should have shown 0.0% a week ago too. I hope some real expert can chime in and straighten us both out. > Both machines have now been rebooted, it seems you can't reboot just one > end of an NFS link as the un-rebooted end of it will lock solid, needs a > reset button push to reboot within about 10 minutes. But that is > secondary. Faint memories remind me that it happened several times before > & may be one of the reasons I didn't really want to use nfs. But it > otherwise is working well for the usage I need. It's been too long since I used NFS to be of any help. Even back in the day, when my workstations were tied into a monstrously large network of NFS clients and servers, I mostly relied on the true sysadmins to keep the magic alive. My stance was, they forced me to use NFS (to access shared applications for which I had purchased additional RTU-license keys), they should make it work. > > <...> > So at the moment, I'm back to being bumfuzzled again. No clue what I > changed that would have screwed up the older emc-2.6.0-pre after its been > reinstalled. Me neither. The only time I have fired up the pre-releases has to check for occurrences of the "brand that shall not be named." I checked the Configuration Selector, made sure Axis came up, ran the sim/axis_mm demo, and then shut down. > Take both our minds off it for a few. Hows the missus doing? We take it one day at a time. The depression is now in control. The post-Christmas neurosurgery was successful. She recovered remarkably quickly from it and her spirits are high but (after a certain age, there's always a "but") chronic problems like her spinal stenosis and advanced arthritis increasingly cause pain in her hip and leg, to the point she is now using a walker to ensure stability. Then there's the underlying gorilla-in-the-room problem for which we're still developing a new treatment plan.
On the good side, we just celebrated her 68th birthday this weekend with a great get-together of kids and grandkids. She received lots of what I call grandkid "therapy" which is better than a patent drug. So did I. My 11-year old granddaughter and I were trying to squeeze out frosting letters on the sheet cake when we mutually decided "this is too hard, we should rig up a CNC cake decorator." It was music to my ears. I have to get her into a Lego League robotics club before her brain is fried by the current girlz culture. >> Regards, >> Kent > Cheers& thanks Kent, Gene. Keep on truckin' Regards, Kent ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
