Jeff Roberson bb7858ea20 Improve page LRU quality and simplify the logic.
- Don't short-circuit aging tests for unmapped objects.  This biases
   against unmapped file pages and transient mappings.
 - Always honor PGA_REFERENCED.  We can now use this after soft busying
   to lazily restart the LRU.
 - Don't transition directly from active to cached bypassing the inactive
   queue.  This frees recently used data much too early.
 - Rename actcount to act_delta to be more consistent with use and meaning.

Reviewed by:	kib, alc
Sponsored by:	EMC / Isilon Storage Division
2013-07-26 23:22:05 +00:00
..
2013-07-21 19:44:53 +00:00
2013-07-26 21:34:09 +00:00
2013-07-25 16:34:34 +00:00
2013-06-18 06:55:58 +00:00