Revision 795e663df0d868754d7904025cd090998c986f5d authored by Zhongyi Xie on 22 June 2018, 04:16:49 UTC, committed by Facebook Github Bot on 22 June 2018, 04:28:05 UTC
Summary: For example calling CompactionFilter is always timed and gives the user no way to disable. This PR will disable the timer if `Statistics::stats_level_` (which is part of DBOptions) is `kExceptDetailedTimers` Closes https://github.com/facebook/rocksdb/pull/4029 Differential Revision: D8583670 Pulled By: miasantreble fbshipit-source-id: 913be9fe433ae0c06e88193b59d41920a532307f
1 parent 0a5b16c
README.md
## RocksDB: A Persistent Key-Value Store for Flash and RAM Storage
[](https://travis-ci.org/facebook/rocksdb)
[](https://ci.appveyor.com/project/Facebook/rocksdb/branch/master)
[](http://140.211.168.68:8080/job/Rocksdb)
RocksDB is developed and maintained by Facebook Database Engineering Team.
It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com)
and Jeff Dean (jeff@google.com)
This code is a library that forms the core building block for a fast
key value server, especially suited for storing data on flash drives.
It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs
between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF)
and Space-Amplification-Factor (SAF). It has multi-threaded compactions,
making it specially suitable for storing multiple terabytes of data in a
single database.
Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples
See the [github wiki](https://github.com/facebook/rocksdb/wiki) for more explanation.
The public interface is in `include/`. Callers should not include or
rely on the details of any other header files in this package. Those
internal APIs may be changed without warning.
Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/
## License
RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.
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