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[MarSies]

Matt,

You are the iPod specialist. I have posted this http://yabb.jriver.com/interact/index.php?topic=41930.0 and http://yabb.jriver.com/interact/index.php?topic=42391.0 about building a quad PC and having troubles with 4 parallel conversions.

I installed the 319 version recently and when I tried the conversions to my iPod. I was in a hurray mood because it worked again like it did in the beginning. It was superfast and all 4 cores were used 100% and still giving a good respose to me and my keyboard.

After a while it went back to primarily using the first core and the others a little. Perfomance then drops significantly. Can you explain this. Does this has to do with the fact that my Vista64 system with Q66002.4GHz is overclocked to 2.83Ghz.

Matt, help me out .....

[MarSies]

Matt, where are you ?

[datdude]

What happens if you stop overclocking it?

[MarSies]

It stays the same. Next thing is that I'll reinstall the same version and then see if it works again. That trick worked once.

[Matt]

After a while it went back to primarily using the first core and the others a little. Perfomance then drops significantly. Can you explain this. Does this has to do with the fact that my Vista64 system with Q66002.4GHz is overclocked to 2.83Ghz.

Perhaps it finished conversion?  It only transfers one file at a time after this, as the device itself can't work any faster.

Also, you won't get 100% on all four cores (question from the other thread) because other things become a bottle-neck like the memory or disk access.  Basically, you have way more CPU power than the other subsystems in the machine can service.

[MarSies]

Matt, I just installed the latest version (335) and it runs again like a clock. I wonder for how long. The system now runs about 2.9Ghz with 1.4 core voltage, temp is 59 degrees Celcius. Speed is amazing. It runs several times faster then it used to do with my former system 

All 4 cores run at 100%, no problem. I don't see why other parts of my system should limit this. The shifting of the few megabytes back and forth is nothing compared to the power needed off the CPU. It runs now the way I want it to run. But I am afraid that after af few hours or days it will go back only using 1 core. 

What can be wrong here ?

[MarSies]

Maybe I found something. It was running like a clock and I also started playback. Eventough MC was stressing my CPU everything was very responsive. I could still do my normal things, no problem.

Then when doing playback my Panda firewall asked me if MC could have a connection to the Internet. I just installed the latest version of MC  so I have to update the firewall settings. My answer was yes. After that 3 cores went down in usage to about 30% instead of all 4 on 100%.

Stopping playback does not help. Checked my firewall settings and that looks normal, just outgoing connections are allowed like almost all programs. Reinstalled 335, synched a playlist to my iPod and guess what. CPU usage back to 100% on all 4 cores.

What is happening when reinstalling MC  ?

[JimH]

Maybe downloading podcasts?

[MarSies]

Nothing of a kind.

Only thing I have running is G-Force. It runs smoothly. Could you try to reproduce..

What can be changed so that MC is not using 4 threads. Is this also the case with a dual core?