3 commits

Author	SHA1	Message	Date
krad	5b197bff41	Enabled Windows build for volatile tier implementation ... Summary: Enabled build in Windows and corresponding fixes Test Plan: Compile and run persistent_cache_test in Windows and make check in Linux Reviewers: sdong Subscribers: andrewkr, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D59307	2016-06-09 11:10:35 -07:00
sdong	098da83483	Fix CLANG build break caused by the recent Persistent Cache change ... Test Plan: USE_CLANG=1 make all check -j32 Reviewers: andrewkr, IslamAbdelRahman Reviewed By: IslamAbdelRahman Subscribers: leveldb, andrewkr, dhruba Differential Revision: https://reviews.facebook.net/D59313	2016-06-07 17:05:12 -07:00
krad	d755c62f92	Persistent Read Cache (5) Volatile cache tier implementation ... Summary: This provides provides an implementation of PersistentCacheTier that is specialized for RAM. This tier does not persist data though. Why do we need this tier ? This is ideal as tier 0. This tier can host data that is too hot. Why can't we use Cache variants ? Yes you can use them instead. This tier can potentially outperform BlockCache in RAW mode by virtue of compression and compressed cache in block cache doesn't seem very popular. Potentially this tier can be modified to under stand the disadvantage of the tier below and retain data that the tier below is bad at handling (for example index and bloom data that is huge in size) Test Plan: Run unit tests added Subscribers: andrewkr, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D57069	2016-06-07 11:10:44 -07:00