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high CPU usage

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xian:
I experience occasional high CPU usage for no (obvious) reason on Win7 64bit with MC v4.1 (build 1620) 64 bit. The software still works but keeps 1 CPU core busy on a 2 core notebook (50% load). If I restart MC the problem goes away for a while.
I don't recall such issue with previous versions.
Is there anything I should check when I experience the problem? Thank you.

Mathias (Author):
The only background work that MC do is fetching file icons and file properties for extended columns (if you have any of them showing) and file coloring
However 3de party shell extension can also hook it self into MC and do stuff.

What you can do is to create a dumpfile when it is happening from task manager and then upload it to http://multicommander.com/upload and I might be able to see what it is doing

xian:
I managed to reproduce the high load by connecting and disconnecting to an FTP site. I'm not sure if the issue is related, I have uploaded the dump (high load - MultiCommander.DMP).

Mathias (Author):
According to the dump it is not doing anything, it is idle.
not processing icons, not processing extra file properties,

According to the dump there is no high cpu usage at the time the dump was created.

If it comes and goes, then maybe the dump was created just after it went away or something.

Is it only happening after disconnect from FTP ?  how do you disconnect ?. (pressing the disconnect button in the Explorer Panel ? )

xian:
Yes, maybe I missed it. This was just discovered yesterday, that a high load was after FTP connection. I pressed the disconnect button, yes.

Earlier I just noticed my notebook air vents gone crazy and saw 50% (full core) load. I don't remember any specific activity before these occasions, happened a few times. I'll watch out and try to catch one of those.

Thanks

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