Hello Ric;

Interesting numbers. My next questions would be: how modern are the drives, and how much RAM is on the machine? Also, how long did the OP's 'slow' process take? Did an actual copy occur? I could see *nix systems doing some inode magic.

Sherlock, Ric wrote:
---Randy MacDonald wrote:
By copy, I don not mean duplicating a reference. I mean having two
identical sets of bytes where there was one before.  What the
OP seemed
to be talking about was a filter of some sort.

I based my estimate on 134MB being a 2 hour mp3, or a
6-minute video.  I
just thought the data transfer speed of a hard drive would work out to
about a minute, or 4MB/sec, since both to and from storage are what we
are talking about here.  (note to self:  Google 'hard drive
throughput'
for more info)


The following seems to suggest that 1 minute would be excessive?

   6!:2 '(134125010$''abcdefg'') fwrite jpath ''~temp/testsz.txt'''
6.27771190193
   6!:2 '(jpath ''~temp/testsz2.txt'') fcopynew jpath ''~temp/testsz.txt'''
4.60973992505


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