c0c33a4854
Summary: `USE_LTO=1` in `make` commands now enables LTO. The archiver (`ar`) needed to change in this PR to use a wrapper that enables the LTO plugin. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7181 Test Plan: build a few ways ``` $ make clean && USE_LTO=1 make -j48 db_bench $ make clean && USE_CLANG=1 USE_LTO=1 make -j48 db_bench $ make clean && ROCKSDB_NO_FBCODE=1 USE_LTO=1 make -j48 db_bench ``` Reviewed By: cheng-chang Differential Revision: D22784994 Pulled By: ajkr fbshipit-source-id: 9c45333bd49bf4615aa04c85b7c6fd3925421152
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/master/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.
Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/
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.