[Freeciv-Dev] Re: (PR#11068) savegame file compression

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=11068 >

I ran a single test on an autogame with changed compresstype but default
compresslevel and saveturns 1.

Compresstype 0: 0m26.347s
Compresstype 1: 0m28.336s (+1.989) (+7.5%)
Compresstype 2: 0m30.919s (+4.572) (+17%)

Conclusion: bzip -6 is about 2.25 slower than gzip -6.  This is
consistent with Chris's findings earlier in the ticket.  However this
isn't really a good measure I think, since with increasing computer
speeds and slower freeciv AIs the overhead of compression will drop.
Maybe it would be better to look at these as a % fraction of the total
runtime.  Note that this is with saveturns 1 so the % is 10x higher than
the default would be.

A 1.7% overhead is not too much I think.

And the file sizes:

-rw-r--r--  1 jdorje jdorje 289729 2005-06-25 12:44 civgame-2000.sav
-rw-r--r--  1 jdorje jdorje  18116 2005-06-25 12:46 civgame-2000.sav.bz2
-rw-r--r--  1 jdorje jdorje  29121 2005-06-25 12:45 civgame-2000.sav.gz

-jason