3 Commits (b0259e45e0be576f98e31020975a8b1cef8fb31f)

Author	SHA1	Message	Date
haoyuhuang	1a59b6e2a9	Cache simulator: Add a ghost cache for admission control and a hybrid row-block cache. (#5534) ... Summary: This PR adds a ghost cache for admission control. Specifically, it admits an entry on its second access. It also adds a hybrid row-block cache that caches the referenced key-value pairs of a Get/MultiGet request instead of its blocks. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5534 Test Plan: make clean && COMPILE_WITH_ASAN=1 make check -j32 Differential Revision: D16101124 Pulled By: HaoyuHuang fbshipit-source-id: b99edda6418a888e94eb40f71ece45d375e234b1	5 years ago
haoyuhuang	66464d1fde	Remove multiple declarations o kMicrosInSecond. ... Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5526 Test Plan: OPT=-g V=1 make J=1 unity_test -j32 make clean && make -j32 Differential Revision: D16079315 Pulled By: HaoyuHuang fbshipit-source-id: 294ab439cf0db8dd5da44e30eabf0cbb2bb8c4f6	5 years ago
haoyuhuang	9f0bd56889	Cache simulator: Refactor the cache simulator so that we can add alternative policies easily (#5517) ... Summary: This PR creates cache_simulator.h file. It contains a CacheSimulator that runs against a block cache trace record. We can add alternative cache simulators derived from CacheSimulator later. For example, this PR adds a PrioritizedCacheSimulator that inserts filter/index/uncompressed dictionary blocks with high priority. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5517 Test Plan: make clean && COMPILE_WITH_ASAN=1 make check -j32 Differential Revision: D16043689 Pulled By: HaoyuHuang fbshipit-source-id: 65f28ed52b866ffb0e6eceffd7f9ca7c45bb680d	5 years ago