Vitalie,

Monday, May 21, 2007, 10:28:42 PM, you wrote:

> Vili wrote:
>> A  second  factor  that  really improved my speed was defragmenting my
>> Voyager  drive.  I  never  thought  to  do  this  and  **wow**  was it
>> fragmented!"
>>   
> and? so what? was the drive formatted with NTFS or FAT? unlike FAT,
> fragmented NTFS files do take extra structures to be read, thus slowing
> the speed. not as much as with moving mechanical heads, but it might
> somehow get noticeable. and NTFS fragmentation may take extra space too,
> although it usually fits in the MFT.

The USB flash drive referred to was formatted as FAT, and after
defragmentation gave a huge speed increase, and shut down a lot
faster.  Compressing the files on exit led to rewriting them every
time, which led to very bad defragmentation.  For the technical
reason, it has to do with either the fact that sequential reads are
faster than random reads on flash drives, or the fact that many more
i/o operations were needed to read the fragmented data.  Maybe the
difference wouldn't have been as noticeable if it had been formatted
as FAT32.

-- 

 Doug                            mailto:[EMAIL PROTECTED]
******
TheBat! Voyager 3.99.4
on Windows XP


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