Updated random.e ... 40-50 X speed increase overwriting
(Even if you have no interest in random.e, this is an optimizer's tale with
a happy ending).
I rewrote the procedure that overwrites records, and acheived speeds of up
to 50 times faster. The old algorithm would seek to the record past your
desired record, then with a for/end for loop, it would append the remaining
records with the get() command to a temporary variable. The data would then
be transferred to another variable. After the overwrite record was written,
it would then do another for loop and write each record over. Doh! What was
I thinking? Now it just uses the gets() command to get it in one fell swoop
(no loop), then use the puts() command to put it back in one iteration.
I tried this before, but couldn't get it to work. I think I had other
problems... so I abandoned the easy way and wrote the append algorithm.
Benchmark times that were 20 seconds the old way are now down to less than
half a second. Well, this will be the last new version for a while, probably
for good.
Derek
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