Diagnostics stuff
Forgot this
Trim it up
Fix up
Clean out most diagnostic stuff
Merge branch 'master' into diagnostics
Add a histogram, use it to measure free times for various size classes
Clean this code up a bit
Add query histogram
Merge branch 'diagnostics' into scoped_malloc
Increase the query report frequency
Print free() statistics incrementally instead of cumulatively
refs #127 Add a bit to enable/disable thread local allocations
fixes #131 Don't hold the pair's mutex while running partial eviction.
Always exit do_partial_eviction with the pair's mutex not held.