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Defraggler shows incorrect fragmentation percentage


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#1 OFFLINE Rubén Baini

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Posted 27 October 2010 - 07:38 AM

Hi, I'm using the latest release version of Defraggler and I've found that the fragmentation percentage is incorrect showing more than 100%.
This percentage is wrong (I think) because the "used capacity" of 1 of my local drives (NTFS) is less than the "Fragmented Files". In attached example you will find: "used capacity" = 9.3 GB and "fragmented files" = 9.7 GB.
I think that one of this calculations is not working correctly.
Also, attached you'll find some screenshots and logfile of debug mode (started defraggler with /debug parameter).
Please let me know if you need anything else.

Regards,

Rubén

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#2 OFFLINE Aethec

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Posted 27 October 2010 - 08:30 AM

Are there compressed files on your drive ? Not ZIP archives, but actual NTFS-compressed files - their name is in blue in Windows Explorer.
Here's an example:
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#3 OFFLINE Rubén Baini

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Posted 27 October 2010 - 08:59 AM

Yes, not a lot of files, but I've seen some compressed files created by Windows disk Cleanup utility in drive C. See attached example.
Regards,

Rubén

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#4 OFFLINE Aethec

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Posted 27 October 2010 - 09:06 AM

Are there any other files like this, elsewhere? Those are a normal behavior from Windows ; however, Defraggler often has weird things related to big compressed files.
If you ran Disk Cleanup, it might have compressed some files.

Did you try Defraggler 2 Beta?
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#5 OFFLINE Rubén Baini

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Posted 27 October 2010 - 09:19 AM

Unfortunately, I can't use any beta version here, but I´ll double check in other lab and I´ll let you know.
Anyway, if this is a OS mismatch of free space computation, I don´t think Defreggler change any code in order to try to fix this...
Any helpfully message about this "differences" should be good to see in the screen design of Defraggler. Showing more than 100% of fragmented space is not a good number to have idea of fragmentation status.
Regards,

Rubén