Peter Dillinger e91d1a21a6 Streamline persistent_cache_test for testing efficiency (#6601)
Summary:
This test was written like a stress test, using up to 3x26GB
RSS memory during parallel 'make check'. Now, while this code is mostly
dormant, I've made the "for Travis" versions of the expensive tests the
canonical versions and disabled the expensive versions. This has the
side benefit of removing some arbitrary conditional compilation.

For unknown reason, the super expensive tests were gated on
Snappy_Supported, which appears to be irrelevant, so I removed it.

The tests can be fixed / improved / migrated to stress test if/when they
are deemed important again.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6601

Test Plan:
make check + CI

./persistent_cache_test Before:
...
[==========] 10 tests from 2 test cases ran. (114541 ms total)
[  PASSED  ] 10 tests.
YOU HAVE 1 DISABLED TEST

After:
...
[==========] 3 tests from 2 test cases ran. (1714 ms total)
[  PASSED  ] 3 tests.
YOU HAVE 10 DISABLED TESTS

Reviewed By: siying

Differential Revision: D20680983

Pulled By: pdillinger

fbshipit-source-id: 2be0fde13eeb0a71110ac7f5477cfe63996a509e
2020-03-26 19:36:32 -07:00
2017-10-18 14:42:10 -07:00
2019-08-29 23:21:01 -07:00
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2020-01-08 13:46:43 -08:00

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

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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/

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.

Description
A library that provides an embeddable, persistent key-value store for fast storage.
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