[Xapian-discuss] Flint Backend

Olly Betts olly at survex.com
Tue Jun 28 20:43:34 BST 2005


On Tue, Jun 28, 2005 at 09:32:46PM +0200, Arjen van der Meijden wrote:
> postlist: Reduced by 0.537767% 7504K (1395400K -> 1387896K)
> record: Reduced by 0.311498% 544K (174640K -> 174096K)
> termlist: Reduced by 0.423684% 5168K (1219776K -> 1214608K)
> position: Reduced by 0.0208535% 1512K (7250576K -> 7249064K)
> value: Reduced by 0.0307314% 16K (52064K -> 52048K)

So "-F" (plus the minor changes between 0.8.4 and 0.9.1) saves between
0.02 and 0.54%.  I think that's inline with what I found.

Converting the numbers to be comparable and adding them as a column
to your original results:

         Qz          Qz 084 gz    Qz -nF gz  Qz 091 -F gz
Position 7424589824  7424589824  7432200192  7423041536
Postlist 1708957696  1428889600  1535426560  1421205504
Record    254222336   178831360   179888128   178274304
Termlist 1770250240  1249050624  1395597312  1243758592
Value      61317120    53313536    53313536    53297152

Cheers,
    Olly



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