In shared, sharded buffer pool, to prevent deadlock each thread holds at most one exclusive lock on a shard, instead of two exclusive locks (one on the loading shard, one on the eviction shard).
Cons: under-eviction (we evict less slots than it should).
zuyu
commented
8 years ago
In shared, sharded buffer pool, to prevent deadlock each thread holds at most one exclusive lock on a shard, instead of two exclusive locks (one on the loading shard, one on the eviction shard).
Cons: under-eviction (we evict less slots than it should).