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From: Jim C. <dru...@gm...> - 2008-03-07 23:34:06
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could it be fsb / memory and the like are the limiting factor, and not the CPU speed? i've been curious how overclocking would affect the speeds attainable. i've only ran emc on a slightly overclocked athlon XP barton2500 system, i might have to get around to doing some more testing, huh. On Tue, Mar 4, 2008 at 12:21 AM, Gene Heskett <gen...@ve...> wrote: > On Monday 03 March 2008, Ed Nisley wrote: > >Gene Heskett wrote: > >> When starting emc on its own screen, I > >> do get a realtime error, just one that never repeats. > > > >That just cropped up here after I updated to 2.2.3. There's > >one realtime error when Axis starts up, then nothing else. > >I run it either locally or through rdc, with the same > >results. > > 2.2.3, AIUI, does its own latency test at startup, and apparently seems to > detect a lag of some kind because something related to the video isn't > quite > ready at the time it is getting everything initialized. I've been > clearing > it and otherwise ignoring it. Its possible that the test could be moved > someplace else so it was done after all the initial screen redraws have > been > done. But my coding expertise is fading as the years pile up, 73 of them > now > and I never was up to the scale of a 32 bit linux framework, I did all of > mine on 8 & 16 bit stuff 20 years ago, usually in assembly or even > entering > hex by hand in a monitor program. 1802/z80(spit)/and 6x09 stuff. > > >The info in dmesg looks like this: > > > >[ 187.772175] I-pipe: Domain RTAI registered. > >[ 187.772183] RTAI[hal]: <magma> mounted over > >IPIPE-NOTHREADS 1.3-00. > >[ 187.772186] RTAI[hal]: compiled with gcc version 4.0.3 > >(Ubuntu 4.0.3-1ubuntu5). > >[ 187.772192] RTAI[hal]: mounted (IPIPE-NOTHREADS, > >IMMEDIATE (INTERNAL IRQs VECTORED), ISOL_CPUS_MASK: 0). > >[ 187.772194] PIPELINE layers: > >[ 187.772197] f8bca780 9ac15d93 RTAI 200 > >[ 187.772200] c02d1680 0 Linux 100 > >[ 187.791834] RTAI[malloc]: vmalloced extent f8c3e000, size > >2097152. > >[ 187.791902] RTAI[malloc]: loaded (global heap > >size=2097152 bytes). > >[ 187.793705] RTAI[sched_lxrt]: loaded (IMMEDIATE, UP, > >USER/KERNEL SPACE <with RTAI TASKs>). > >[ 187.793716] RTAI[sched_lxrt]: hard timer type/freq = > >8254-PIT/1193180(Hz); default timing mode is periodic; > >linear ordering of timed lists. > >[ 187.793729] RTAI[sched_lxrt]: Linux timer freq = 1000 > >(Hz), CPU freq = 2392319000 hz. > >[ 187.793732] RTAI[sched_lxrt]: timer setup = 2010 ns, > >resched latency = 2689 ns. > > Humm, lemme see what I'm getting for this, crazy but I get identical > timings, > but my cpu is a gigahertz slower. > > > >[ 187.843547] RTAI[math]: loaded. > >[ 188.027891] config string '0xecf8' > >[ 190.667837] RTAPI: ERROR: Unexpected realtime delay on > >task 1 > > > >Running the latency tests for an hour didn't turn anything > >up, so it looks like a startup glitch. > > > >Suggestions? > > Ignore it till 2.2.4 maybe? > > -- > Cheers, Gene > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > Hardware, n.: > The parts of a computer system that can be kicked. > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Emc-users mailing list > Emc...@li... > https://lists.sourceforge.net/lists/listinfo/emc-users > |