CPU Usage problem

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sparrowdclxvi

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Joined: 14 Aug 10
Posts: 2
United Kingdom
Message 34211 - Posted: 14 Aug 2010, 20:46:14 UTC

I've recently started running BOINC on my server, a dual quad-core Xeon Dell box running Windows Home Server (effectively Server 2003).

When I set the max CPU usage to 50%, the cpu usage fluctuates drasticly. When I logged on just now, it was at 99%, 1%, 99%, 1%, 99%, 1%, 99%, 1%.

I don't really want that, and would prefer it to run at a stable value of 50% (or whatever I select).
Any ideas appreciated.

Thanks
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Les Bayliss
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Joined: 25 Nov 05
Posts: 1654
Australia
Message 34215 - Posted: 14 Aug 2010, 21:34:10 UTC - in response to Message 34211.  

That option works by running BOINC 50% of the time.
I think that it's 1 second on, 1 second off.

Also, I seem to remember reading that the work for some projects don't like that sort of thing, and will crash.

Are you running it like this because of heat?
If so perhaps TThrotle will help.

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SekeRob2

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Joined: 6 Jul 10
Posts: 585
Italy
Message 34217 - Posted: 14 Aug 2010, 21:42:20 UTC - in response to Message 34211.  
Last modified: 14 Aug 2010, 21:43:41 UTC

I've recently started running BOINC on my server, a dual quad-core Xeon Dell box running Windows Home Server (effectively Server 2003).

When I set the max CPU usage to 50%, the cpu usage fluctuates drasticly. When I logged on just now, it was at 99%, 1%, 99%, 1%, 99%, 1%, 99%, 1%.

I don't really want that, and would prefer it to run at a stable value of 50% (or whatever I select).
Any ideas appreciated.

Thanks

Suggest to get ahold of ThreadMaster GUI. Works well on servers and allows by-process, by science control on W2K, XP through Windows 7 - 64 bit... very smooth. Set the threshold on an 8 core to about 6.25% and that will translate to effective 50% per core.
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sparrowdclxvi

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United Kingdom
Message 34241 - Posted: 16 Aug 2010, 19:23:15 UTC - in response to Message 34217.  

Thanks, Threadmaster GUI has done the trick. Need to read up on it a bit, as I'm not quite using as much of the CPU as I'd like, but at least it's more where I want it to be.
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SekeRob2

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Italy
Message 34243 - Posted: 16 Aug 2010, 22:04:50 UTC - in response to Message 34241.  

Great, ... I'm sure you've figured that BOINC itself should be set back to use 100% else the 2 throttle controls will be working against each other.
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Profile Gundolf Jahn

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Joined: 20 Dec 07
Posts: 1069
Germany
Message 37331 - Posted: 30 Mar 2011, 13:32:51 UTC - in response to Message 37330.  

Perhaps it's really no good idea to run a BOINC project on a web server. ;-)

Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
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Profile Jord
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Joined: 29 Aug 05
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Netherlands
Message 37332 - Posted: 30 Mar 2011, 13:33:57 UTC - in response to Message 37331.  

Especially not when it's running a form of spam. ;)
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John Black

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United Kingdom
Message 37338 - Posted: 30 Mar 2011, 22:34:35 UTC

Hi,
I am running S@H and MilkyWay@H on a E4700 dual core CPU at 2.6GHz on an Acer M1640 operating on Windows Vista sp2.

Using System Monitor 2 I have noticed a regular cycling of both cores from 100% down to about 60%. I am not sure if this is a normal part of the computation process or whether it reveals some malfunction. This results in my CPU time being appreciably less than the calculation time and looks somewhat inefficient.

I have only been using BOINC for about 11 months so I am not sure about this and I would appreciate any help offered. As it occurs on both cores no matter which task is running I have posted here and not on the respective message boards.

Thank you

John Black
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Message boards : Questions and problems : CPU Usage problem

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