Extreme CPU usage with 4.09

Questions and Answers : Macintosh : Extreme CPU usage with 4.09
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Profile Gwynne
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Message 29977 - Posted: 25 Sep 2004, 15:15:22 UTC

I had just updated my BOINC (MacOS X 10.3.5, dual G4 867MHz) to version 4.09, and suddenly I realized my machine was being extremely slow. I checked top -u, and the CPU usage of BOINC itself (not any of the subapplications, but of the core client) was topping the list. I reniced the core client down to 19, but it only helped a little. Attaching with gdb showed that BOINC was using all this CPU time spinning in file I/O routines. I switched back to 4.05 and all is well again. Has anyone else seen this/come up with a solution? I'm currently attached to climateprediction.net and SETI@Home, and it's currently crunching only a climateprediction.net unit.
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Profile Keith J. Schultz

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Message 30520 - Posted: 27 Sep 2004, 9:39:19 UTC

I have 10.3.5 and a Powerbook G4 1.3 GHz. "top -u" shows boinc doing practically nothing 0% CPU usage and setihome grabbing all the time it can get (90%).

Keith J. Schultz
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Message 30524 - Posted: 27 Sep 2004, 9:53:38 UTC

Hi Again,

Just for test pruposes I started Starry Night(an astronomy program) and seti happily gave up
all the time Starry night needed !

Keith J. Schultz
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Message 30669 - Posted: 27 Sep 2004, 21:56:56 UTC - in response to Message 30520.  

> I have 10.3.5 and a Powerbook G4 1.3 GHz. "top -u" shows boinc doing
> practically nothing 0% CPU usage and setihome grabbing all the time it can get
> (90%).
>
> Keith J. Schultz
>
>

You cannot run Setiathome and Boinc at the same time. Setiathome is set at a higher priority than Boinc. So if you run both at the same time, Setiathome will grab all the CPU time and leaving none for Boinc
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Message 30675 - Posted: 27 Sep 2004, 22:29:42 UTC

I'm running BOINC/SETI (boinc_4.09_powerpc-apple-darwin), on a PowerMac G4 1GHz DP MDD MacOS 10.3.5, and am seing this kind of behaviour whenever there is only one SETI process running (normally run two). BOINC itself is back and forth to the HDD at about 5+ MB in/out per second. This activity seems to take place when BOINC is "...Deferring communication with project...", and there are not enough work units to keep both CPUs busy.

boinc_4.05_powerpc-apple-darwin is not exhibiting this behavior and the HDD has cooled off 1C in the past 20 minutes. I think I'll stay with 4.05 for now.

Kyle
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Message 38959 - Posted: 22 Oct 2004, 0:19:47 UTC
Last modified: 22 Oct 2004, 10:36:13 UTC

I have PPC G4 Dual 1.4 Ghz with 1.5 GB RAM. I am using Cee Pee U to monitor CPU usage for boinc_4.13_powerpc-apple-darwin. It cranks out a whopping 100% usage for 2 simultaneoaus work units. Also, It IGNNORES the preferences set with the mothership, only runs in terminal when manually started, and hogs everything. Any suggestions? BTW I can't get the PC at work to load a work unit - even with the correct proxies. Thing needs work - or a new operator!
<img src="http://boinc.mundayweb.com/seti2/stats.php?userID=1790&amp;trans=off">_<img src="http://seti.mundayweb.com/stats.php?userID=524&amp;trans=off">_<img src="http://www.flagofearth.com/Decal2.jpg" HEIGHT="70">

<BR><B><I>Regards, UA
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Questions and Answers : Macintosh : Extreme CPU usage with 4.09


 
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