Strange behavior from Win MediaPlayer, after ripping to mp3, CPU usage keeps 50%!

Questions and Answers : Windows : Strange behavior from Win MediaPlayer, after ripping to mp3, CPU usage keeps 50%!
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Profile Fred J. Verster
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Message 1081047 - Posted: 24 Feb 2011, 23:42:34 UTC

Used my Laptop, to rip some CD's on Windows Media Player and when finished I closed Media Player.
When looking at a climate model from CPDN, a day later, it seemed slow, so I started TaskManager, first thing I noticed, 2 climate models running at 25%, it's a Dual Core, T2400. So strange.........

Looking further, Mplayer.exe using still 50%, sometimes 49%, (otherwise I probably had it mistaken for a display fault or whatever.....
But it also kept moving from 50 to 49% and back!

First I lowered priority, no result, then simply Killed the process, which, ofcoarse worked.........

Somebody with similar experience?

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Message 1081087 - Posted: 25 Feb 2011, 1:38:56 UTC - in response to Message 1081047.  

Used my Laptop, to rip some CD's on Windows Media Player and when finished I closed Media Player.
When looking at a climate model from CPDN, a day later, it seemed slow, so I started TaskManager, first thing I noticed, 2 climate models running at 25%, it's a Dual Core, T2400. So strange.........

Looking further, Mplayer.exe using still 50%, sometimes 49%, (otherwise I probably had it mistaken for a display fault or whatever.....
But it also kept moving from 50 to 49% and back!

First I lowered priority, no result, then simply Killed the process, which, ofcoarse worked.........

Somebody with similar experience?

This sounds like a fault in mplayer. BOINC projects run at the lowest priority that does not allow the IDLE process to take any CPU time. Note that this priority is actually lower than any that can be set through the UI.


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Profile Fred J. Verster
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Message 1081168 - Posted: 25 Feb 2011, 9:20:30 UTC - in response to Message 1081087.  

Used my Laptop, to rip some CD's on Windows Media Player and when finished I closed Media Player.
When looking at a climate model from CPDN, a day later, it seemed slow, so I started TaskManager, first thing I noticed, 2 climate models running at 25%, it's a Dual Core, T2400. So strange.........

Looking further, Mplayer.exe using still 50%, sometimes 49%, (otherwise I probably had it mistaken for a display fault or whatever.....
But it also kept moving from 50 to 49% and back!

First I lowered priority, no result, then simply Killed the process, which, ofcoarse worked.........

Somebody with similar experience?

This sounds like a fault in mplayer. BOINC projects run at the lowest priority that does not allow the IDLE process to take any CPU time. Note that this priority is actually lower than any that can be set through the UI.



Maybe, the fact that the CDAudio was ripped to a USB 2.0 Device, has something to do with this.
Had not noticed this before, but now I'll watch how it behaves after using it, anyway thanks for your reply.

BOINC uses the lowest (4) priority, so any process with a higher priority, takes 'control'.

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Message 1081194 - Posted: 25 Feb 2011, 12:10:42 UTC - in response to Message 1081168.  

Used my Laptop, to rip some CD's on Windows Media Player and when finished I closed Media Player.
When looking at a climate model from CPDN, a day later, it seemed slow, so I started TaskManager, first thing I noticed, 2 climate models running at 25%, it's a Dual Core, T2400. So strange.........

Looking further, Mplayer.exe using still 50%, sometimes 49%, (otherwise I probably had it mistaken for a display fault or whatever.....
But it also kept moving from 50 to 49% and back!

First I lowered priority, no result, then simply Killed the process, which, ofcoarse worked.........

Somebody with similar experience?

This sounds like a fault in mplayer. BOINC projects run at the lowest priority that does not allow the IDLE process to take any CPU time. Note that this priority is actually lower than any that can be set through the UI.



Maybe, the fact that the CDAudio was ripped to a USB 2.0 Device, has something to do with this.
Had not noticed this before, but now I'll watch how it behaves after using it, anyway thanks for your reply.

BOINC uses the lowest (4) priority, so any process with a higher priority, takes 'control'.

I will have to check the code, but I thought we had succeeded in knocking it down to 2. This can be specified programatically, but not through the UI.


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Questions and Answers : Windows : Strange behavior from Win MediaPlayer, after ripping to mp3, CPU usage keeps 50%!


 
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