Posts by Harry Adams

1) Message boards : Questions and problems : BOINC 6.4.5 - high CPU usage by explorer.exe (Message 23222)
Posted 21 Feb 2009 by Harry Adams
Post:
This morning, explorer.exe seems to be behaving itself. I see it between 0% and 0.4% for a second or so about every 10 seconds. The cuda WU is ticking along at 1.5% to 3.4% with occasional excursions to 5%.

I have had the indexing service completely disabled on my computer for several months now. With a fully expanded process tree, I can see two or three other processes popping in and out that each use no more than 0.4%. The System Idle Process fluctuates between 18% and 23%.

If explorer.exe starts to act up again, I will monitor what other processes are running and post a question.

Thanks for your help.
2) Message boards : Questions and problems : BOINC 6.4.5 - high CPU usage by explorer.exe (Message 23217)
Posted 21 Feb 2009 by Harry Adams
Post:
I'm running BOINC version 6.4.5 on an Intel Q6600 Quad processor CPU with an NVIDIA GeForce 8800 GTX GPU. Right now I have one Astropulse 5.00 WU, one SETI@home Enhanced 6.08(cuda) WU amd two MilkyWay@home 0.19 WUs crunching.
Using Process Explorer, I see the three non-cuda WUs all running at about 25% (full utilization of 3 out of 4 CPUs). The fourth CPU, working on the cuda WU, is running at about 0.4%. Meanwhile I am seeing explorer.exe jumping around between 0.3% and 20 %. When explorer.exe gets up above about 2%, the cuda WU goes to 0%. As noted by others at SETI@home, other apps are extremely slow when running BOINC.

Suspending the MilkyWa@home does not improve the situation. Exiting AVG and Spyware Terminator doesn't help either.

The following seems to help for a while. Suspend the cuda WU, which allows a MilkyWay@home WU to start up. Now resume the cuda WU and suspend one of the MilkyWay@home WUs. The cuda WU now runs at 1% to 5% and explorer.exe is between 0% and 1%. This is how things used to work. I'm not sure when the change ocurred.

This lasts until the cuda WU has finished and a new cuda WU starts up. The situation now reverts back to where it was at the start of this post. The cuda WU is running 0% to 0.3% and explorer.exe is 0.3% to 20%. Other apps have slowed to a crawl.

I hope there is some information in this post that will help diagnose the problem.



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