Summary:
This diff changes `StatisticsImpl` from a thread-local approach to a core-local one. The goal is to perform faster aggregations, particularly for applications that have many threads. There should be no behavior change.
Closes https://github.com/facebook/rocksdb/pull/2258
Differential Revision: D5016258
Pulled By: ajkr
fbshipit-source-id: 7d4d165b4a91d8110f0409d113d1be91f22d31a9
Summary:
try to clean up the type conversions and hope it passes on windows.
one interesting thing I learned is that bitshift operations are special: in `x << y`, the result type depends only on the type of `x`, unlike most arithmetic operations where the result type depends on both operands' types.
Closes https://github.com/facebook/rocksdb/pull/2277
Differential Revision: D5050145
Pulled By: ajkr
fbshipit-source-id: f3309e77526ac9612c632bf93a62d99757af9a29
Summary:
Moved the logic for core-local array out of ConcurrentArena and into a separate class because I want to reuse it for core-local stats.
Closes https://github.com/facebook/rocksdb/pull/2256
Differential Revision: D5011518
Pulled By: ajkr
fbshipit-source-id: a75a7b8f7b7a42fd6273489ada405f14c6be196a
