[Tracker] 0.6.94 performance questions

[Jin Suh <jinssuh yahoo com>]

1. I have about 90GB linux files - various files including scripts, data, src codes, tgz, bz2 and tar files under /home. The tracker applet says it will take 26 days to finish indexing. Windows seem much faster (11 min. for 2GB data folder).
2. In the config files, I set the performance as 0 (fast), SmartPausing is off, no watch but just crawling /home and the memory for faster indexing. Let me know if you need the config files.
3. I often see a message saying "indexer is paused due to low memory(disk) or high load".  Why is that?
4. I see a bunch of places in the src that sets the "nice -n19" which is the slowest. I want to run the tracker with a full performance all the time in indexing. Could you tell me how to speed it up for faster indexing?

Thank you guys, as always,
Jin