overview mechanisms

[Julien ÉLIE]

Hi Bo,

>> Are ovdb and INN built with zlib support, and "compress" set to true in ovdb.conf?
> 
> Yes.
> 
> If I turn off compression, disk usage increases to 494 MB for ovdb
> and 469 MB for ovsqlite.  I think the major difference is that
> ovdb doesn't try to compress entries smaller than 600 bytes.

It would indeed explain that.  Maybe this hard-coded size should be 
reduced?  Overview space seems to be twice as much as it could be, 
according to the comparison with SQLite.

-- 
Julien ÉLIE

« Les grands artistes n'ont pas de patrie. » (Alfred de Musset)