29f7bbef99
Summary: Issue：https://github.com/facebook/rocksdb/issues/7042 No PMULL runtime check will lead to SIGILL on a Raspberry pi 4. Leverage 'getauxval' to get Hardware-Cap to detect whether target platform does support PMULL or not in runtime. Consider the condition that the target platform does support crc32 but not support PMULL. In this condition, the code should leverage the crc32 instruction rather than skip all hardware crc32 instruction. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7233 Reviewed By: jay-zhuang Differential Revision: D23790116 fbshipit-source-id: a3ebd821fbd4a38dd2f59064adbb7c3013ee8140
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.