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high CPU usage

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modisanyi:
Hi!
I have observed also high cpu usage when a MC pane is displaying a folder where another process is modifying a file - ex. Firefox is downloading a file; in this folder there are some 1500 files and about 100 subfolders. The high cpu usage continues until i change the displayed folder, or the download is finished.
I'm not sure that I can reproduce this every time, but I have observed this behavior many times.

Thanks.

Mathias (Author):
When files in a folder are changed Windows will notify MC about that. And MC will refresh the file or entire folder if needed. but normally entire folder is not needed. But A rescan should not use a lot of CPU, (Windows even cache it.)

I have no idea how it can use lots of CPU for you, because it can be many many different thing that causes it to be slow.
I'm not able to reproduce it, not even on my old slow machine.

You can try to disable things that are running in the background like not showing icons, not showing overlay icons, make sure you do not view in thumbnail mode. (since thumbnails are fetched in background) , Only show standard columns  (name,ext,size,date,attribute)
If there are a lot of .exe / .dll files in the folder the AntiVirus software might hook in the scan the file before the program can get the program icon.

ice-man:
If you enter "dbg fslog" into the command line field and restarts MC. It will activate a FileSystem browser log in the log panel (ctrl+L)
However it is a bit chatty and very technical. But you might get some hints from it.
(type it again to turn it off )

Mathias (Author):
Yes he can do that, And he might get some clues.
However, It is a debug output of internal works. I normally do not advice doing that, because it is a very very technical output and most people will not understand it and will then just copy and paste the log back into here.
And that will most of the time not give me much since that information alone does not say much, The log by it self  is a bit out of context, You often need the log together with other information and other logs.

modisanyi:
Thank you.
I will give it a try tomorrow, and come back hopefully with some results.

I don't say that is slow, it (MC) just eats up a full core from the cpu. It may be because of the av, but the cpu is eaten up by MC. Nor Windows Explorer, nor TotalCommander does experience this behavior.

Thanks for the "dbg fslog" hint, I'll try it - and not post back the log.

Btw, I'm using MC in commander style and displaying the standard columns.

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