• marko's avatar
    Reduce buffer pool mutex contention under >= 4 big concurrent · 0dda8605
    marko authored
    CPU-bound SELECT queries.  (Bug #15815)
    
    Fix: replace the mutex by one mutex protecting the 'flush list'
    (and the free list) and several mutexes protecting portions of the
    buffer pool, where we keep several indivudual LRU lists of pages.
    
    This patch is from Sunny Bains and Heikki Tuuri.
    0dda8605
buf0buf.ic 17.6 KB