b23fc77aca
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/14473 Add separate PerfContext byte counters for data, index, filter, compression-dictionary, and metadata block reads while preserving block_read_byte as the aggregate. Wire the new counters through the block fetch and multi-read data block paths, expose them via the C perfcontext API, and extend table tests to verify byte attribution and that the classified counters sum back to block_read_byte. Reviewed By: xingbowang Differential Revision: D97333746 fbshipit-source-id: 3411844d7fa9c76c9ff28af477b3a72a5d6e5d9b |
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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.