5 Commits

Author SHA1 Message Date
antirez
e3dcb73eb0 LRU: cache SDS strings in the eviction pool.
To destroy and recreate the pool[].key element is slow, so we allocate
in pool[].cached SDS strings that can account up to 255 chars keys and
try to reuse them. This provides a solid 20% performance improvement
in real world workload alike benchmarks.
2016-07-12 12:31:37 +02:00
antirez
fe5f5bf0dd Move the struct evictionPoolEntry() into only file using it.
Local scope is always better when possible.
2016-07-12 12:22:38 +02:00
antirez
8d854225d0 LRU: use C99 variable len stack array in evictionPoolPopulate(). 2016-07-12 12:05:45 +02:00
antirez
436cbbe279 Remove useless memmove() from freeMemoryIfNeeded().
We start from the end of the pool to the initial item, zero-ing
every entry we use or every ghost entry, there is nothing to memmove
since to the right everything should be already set to NULL.
2016-07-11 19:18:17 +02:00
antirez
78236ec554 Add expire.c and evict.c. 2016-07-06 15:28:18 +02:00