4196ad81e3
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11844 Test Plan: Command: ``` for level in 1 1234 32767 -1 -10 -100 -1000 -10000 -100000 -1000000; do echo -n "level=$level " && ./db_bench -benchmarks=compress -compression_type=lz4 -compression_level=$level |& awk '/^compress / {print $5, $6}' ; done ``` Output: ``` level=1 181340 ops/sec level=1234 183197 ops/sec level=32767 181480 ops/sec level=-1 181053 ops/sec level=-10 662858 ops/sec level=-100 2611516 ops/sec level=-1000 3043125 ops/sec level=-10000 3001351 ops/sec level=-100000 2861834 ops/sec level=-1000000 2906413 ops/sec ``` Reviewed By: cbi42 Differential Revision: D49331443 Pulled By: ajkr fbshipit-source-id: c8909708c3b2b9b83bf2bda2d3f24b8a92d4c2ea |
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README.md
RocksDB: A Persistent Key-Value Store for Flash and RAM Storage
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 especially suitable for storing multiple terabytes of data in a single database.
Start with example usage here: https://github.com/facebook/rocksdb/tree/main/examples
See the github 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.
Questions and discussions are welcome on the RocksDB Developers Public Facebook group and email list on Google Groups.
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.