75f7f42d41
Summary: This change causes following changes result of test: ./db_bench --writes 10000000 --benchmarks="fillrandom" --compression_type none from fillrandom : 3.177 micros/op 314804 ops/sec; 34.8 MB/s to fillrandom : 2.777 micros/op 360087 ops/sec; 39.8 MB/s Closes https://github.com/facebook/rocksdb/pull/2961 Differential Revision: D5977822 Pulled By: yiwu-arbug fbshipit-source-id: 1ea77707bffa978b1592b0c5d0fe76bfa1930f8d
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 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 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/