Commit Graph

3 Commits

Author SHA1 Message Date
Dave Watson
8b14f3abc0 background_thread: add max thread count config
Looking at the thread counts in our services, jemalloc's background thread
is useful, but mostly idle.  Add a config option to tune down the number of threads.
2018-04-10 14:01:45 -07:00
Qi Wang
21eb0d15a6 Fix a background_thread shutdown issue.
1) make sure background thread 0 is always created; and 2) fix synchronization
between thread 0 and the control thread.
2018-04-02 10:03:47 -07:00
David Goldblatt
26b1c13982 Background threads: fix an indexing bug.
We have a buffer overrun that manifests in the case where arena indices higher
than the number of CPUs are accessed before arena indices lower than the number
of CPUs.  This fixes the bug and adds a test.
2018-02-27 19:43:05 -08:00