a8fd1119ce
Currently whenever a compaction/bulkload happen and the blocks are evicted from theirs buckets the buckets become fragmented and are not available to be used by other BucketSizes Bug Fix : Added Memory block type also to the list of evictions that need to happen when there is a needForExtra Improvement : Inorder to fix the non availabilty of Buckets and force the movement of buckets to transformed sizes, whenever we encounter a situation where an allocation cant be made for a BucketSize, we will forcefully free the entire buckets that have least occupancy ratio. This is the same strategy used by MemCached when they encounter a similar issue going by the name 'Slab Calcification'. Only improvement is that we use a heuristic to evict from the buckets that are least occupied and also avoid the BucketSizes where there is a single Bucket Change-Id: I9e3b4deb8d893953003ddf5f1e66312ed97ea9cb Signed-off-by: Ramkrishna <ramkrishna.s.vasudevan@intel.com> |
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