cce702a6e4
Summary: This diff allow us to run a single benchmark X times and warm it up for Y times. and see the AVG & MEDIAN throughput of these X runs for example ``` $ ./db_bench --benchmarks="fillseq,readseq[X5-W2]" Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags RocksDB: version 4.12 Date: Wed Aug 24 10:45:26 2016 CPU: 32 * Intel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz CPUCache: 20480 KB Keys: 16 bytes each Values: 100 bytes each (50 bytes after compression) Entries: 1000000 Prefix: 0 bytes Keys per prefix: 0 RawSize: 110.6 MB (estimated) FileSize: 62.9 MB (estimated) Write rate: 0 bytes/second Compression: Snappy Memtablerep: skip_list Perf Level: 1 WARNING: Assertions are enabled; benchmarks unnecessarily slow ------------------------------------------------ Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags DB path: [/tmp/rocksdbtest-8616/dbbench] fillseq : 4.695 micros/op 212971 ops/sec; 23.6 MB/s DB path: [/tmp/rocksdbtest-8616/dbbench] Warming up benchmark by running 2 times readseq : 0.214 micros/op 4677005 ops/sec; 517.4 MB/s readseq : 0.212 micros/op 4706834 ops/sec; 520.7 MB/s Running benchmark for 5 times readseq : 0.218 micros/op 4588187 ops/sec; 507.6 MB/s readseq : 0.208 micros/op 4816538 ops/sec; 532.8 MB/s readseq : 0.213 micros/op 4685376 ops/sec; 518.3 MB/s readseq : 0.214 micros/op 4676787 ops/sec; 517.4 MB/s readseq : 0.217 micros/op 4618532 ops/sec; 510.9 MB/s readseq [AVG 5 runs] : 4677084 ops/sec; 517.4 MB/sec readseq [MEDIAN 5 runs] : 4676787 ops/sec; 517.4 MB/sec ``` Test Plan: run db_bench Reviewers: sdong, andrewkr, yhchiang Reviewed By: yhchiang Subscribers: andrewkr, dhruba Differential Revision: https://reviews.facebook.net/D62235 |
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|---|---|---|
| arcanist_util | ||
| build_tools | ||
| coverage | ||
| db | ||
| doc | ||
| docs | ||
| examples | ||
| hdfs | ||
| include/rocksdb | ||
| java | ||
| memtable | ||
| port | ||
| table | ||
| third-party | ||
| tools | ||
| util | ||
| utilities | ||
| .arcconfig | ||
| .clang-format | ||
| .gitignore | ||
| .travis.yml | ||
| appveyor.yml | ||
| AUTHORS | ||
| CMakeLists.txt | ||
| CONTRIBUTING.md | ||
| DEFAULT_OPTIONS_HISTORY.md | ||
| DUMP_FORMAT.md | ||
| HISTORY.md | ||
| INSTALL.md | ||
| LANGUAGE-BINDINGS.md | ||
| LICENSE | ||
| Makefile | ||
| PATENTS | ||
| README.md | ||
| ROCKSDB_LITE.md | ||
| src.mk | ||
| thirdparty.inc | ||
| USERS.md | ||
| Vagrantfile | ||
| WINDOWS_PORT.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 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/