Re: [MacPerl] Got it...

[Matthias Ulrich Neeracher <neeri@iis.ee.ethz.ch>]

Time Endres writes:
>I believe that it is the nature of the file based DBM database.
>If I remember correctly, the algorithm for this causes HUGE
>files to be created (which are optimized out under UNIX by
>leveraging file "holes"), which is lots of IO, which slows stuff
>down.

This description is correct for the original DBM (odbm), which, however,
never has been available in a free version. All free DBMs create no holes
or very small ones (like GDBM). Berkeley DB does not create holes. However,
by their nature, hash based database create files somewhat larger than the
original input.

Matthias

-----
Matthias Neeracher   <neeri@iis.ee.ethz.ch>   http://www.iis.ee.ethz.ch/~neeri
   "I'm set free to find a new illusion" -- Velvet Underground

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