[Tracker] 0.12 & tracker-store tuning

[Michael Steiner <michisteiner verizon net>]

Hi,

I'm using tracker 0.10.x for quite a while quite happily on Ubuntu
Natty/Gnome 2 and recently upgraded to 0.12 (now running
0.12.9). While it function generally fine, the performance of
tracker-store gives me a bit grief. Even after small changes in
monitored files/dirs, tracker-store causes minutes of heavy I/O
activity which causes quite some negative interference with other
processes.  I do index a lot (~/.cache/tracker is 5.8GB) but i didn't
change the index scope from what i did with 0.10 and the index size is
basically the same as before. Yet with 0.10 I have not seen even close
as much I/O.

Is there any way to tune the performance of tracker-store (or maybe
tracker-miner)?  0.12 seems to have removed a lot of the configuration
parameters which exited for 0.10 in ~/.config/tracker/*cfg, e.g., for
caching and throttling. Did they move elsewhere, are they gone or
replaced with some other tuning parameters?

In any case, any tips on how to improve the performance is highly
appreciated.

-michael-

PS: two additional questions:

- Is there a way to index also bzip-compressed files? It seems right
  now compressed files are only supported in a limited form? Is there
  any thoughts/work to make a ``stackable'' decompression filter which
  passes the output to the standard miners?

- Is there a way to ignore files or directories based on full (or
  partial) path instead of just the directory local name?