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Number   :  35
Date     :  2001-05-16
Author   :  Kan Yabumoto
Subject  :  Re: slow performance under Win2K?
Size(KB) :  1



Try adding the /NX0 switch which disables the SFN-perserving feature.

XXCOPY, by default, tries to adjust the shor filename whenever the
system-assigned SFN is different from the SFN attached to the source
file. Since this procedure is an iterative (slow) method using a
combination of the official file I/O APIs (and usually fails
after some time wasted), when you know it won't work, you should
add the /NX0 switch to disable the procedure in the first place.

Kan yabumoto

========================================================================

At 2001-05-16 10:25, Joseph Maddison wrote:
>Has anyone else seen some slow performance copying large sets of
>files under Windows 2000? I do not know what the difference is, but
>I've seen slower performance with the same file systems / hard drives
>under Win2K/1.2 GHz Athlon/512 MB RAM than with a scrawny P5-200 with
>64 MB RAM running Win98.
>
>When I copy a large tree, it starts off reasonably snappy, and then
>it eventually slows way down. It seems to be obvious only when moving
>a GB+ of files around. I've seen it take 30 seconds to copy a single 50k file.
>I usually have to bail out when I notice this happening.
>
>Any ideas or suggestions?



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