Gang Liao d7ebb58cb5 Add blob cache tickers, perf context statistics, and DB properties (#10203) ... Summary: In order to be able to monitor the performance of the new blob cache, we made the follow changes: - Add blob cache hit/miss/insertion tickers (see https://github.com/facebook/rocksdb/wiki/Statistics) - Extend the perf context similarly (see https://github.com/facebook/rocksdb/wiki/Perf-Context-and-IO-Stats-Context) - Implement new DB properties (see e.g. https://github.com/facebook/rocksdb/blob/main/include/rocksdb/db.h#L1042-L1051) that expose the capacity and current usage of the blob cache. This PR is a part of https://github.com/facebook/rocksdb/issues/10156 Pull Request resolved: https://github.com/facebook/rocksdb/pull/10203 Reviewed By: ltamasi Differential Revision: D37478658 Pulled By: gangliao fbshipit-source-id: d8ee3f41d47315ef725e4551226330b4b6832e40		2022-06-28 13:52:35 -07:00
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main/java/org/rocksdb	Add blob cache tickers, perf context statistics, and DB properties (#10203)	2022-06-28 13:52:35 -07:00
test/java/org/rocksdb	Dynamically changeable `MemPurge` option (#10011)	2022-06-23 09:42:18 -07:00