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Akanksha Mahajan 63e68a4e77 Enable async prefetching for ReadOptions.readahead_size (#9827)
Summary:
Currently async prefetching is enabled for implicit internal auto readahead in FilePrefetchBuffer if `ReadOptions.async_io` is set. This PR enables async prefetching for `ReadOptions.readahead_size` when `ReadOptions.async_io` is set true.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9827

Test Plan: Update unit test

Reviewed By: anand1976

Differential Revision: D35552129

Pulled By: akankshamahajan15

fbshipit-source-id: d9f9a96672852a591375a21eef15355cf3289f5c
2022-04-11 13:46:57 -07:00
.circleci Upgrade gbenchmark to 1.6.1 (#9775) 2022-03-30 10:09:49 -07:00
.github/workflows Use released clang-format instead of the one from dev branch (#9646) 2022-03-01 10:51:38 -08:00
buckifier Remove DBGet P95/P99 benchmark metrics (#9742) 2022-03-24 10:08:35 -07:00
build_tools Remove public rocksdb-lego-determinator (#9803) 2022-04-06 14:27:01 -07:00
cache Prevent double caching in the compressed secondary cache (#9747) 2022-04-11 13:28:33 -07:00
cmake gcc-11 and cmake related cleanup (#9286) 2021-12-17 17:04:35 -08:00
coverage Fix commit_prereq and other targets (#9797) 2022-04-04 09:58:18 -07:00
db Remove dead code (#9825) 2022-04-11 10:26:55 -07:00
db_stress_tool Add WAL compression to stress tests (#9811) 2022-04-06 15:47:09 -07:00
docs Update Githubpages version (#9670) 2022-03-07 14:48:06 -08:00
env Fix segfault in FilePrefetchBuffer with async_io enabled (#9777) 2022-04-04 15:35:43 -07:00
examples Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
file Enable async prefetching for ReadOptions.readahead_size (#9827) 2022-04-11 13:46:57 -07:00
fuzz Fix compilation errors and add fuzzers to CircleCI (#9420) 2022-02-01 10:32:15 -08:00
include/rocksdb Plugin Registry (#7949) 2022-04-11 13:44:09 -07:00
java Update stats for Read and ReadAsync in random_access_file_reader for async prefetching (#9810) 2022-04-06 14:26:53 -07:00
logging Use system-wide thread ID in info log lines (#9164) 2021-11-12 19:46:06 -08:00
memory Return different Status based on ObjectRegistry::NewObject calls (#9333) 2022-02-11 05:11:24 -08:00
memtable Account memory of big memory users in BlockBasedTable in global memory limit (#9748) 2022-04-06 10:33:00 -07:00
microbench Add microbench document (#9781) 2022-03-31 17:17:44 -07:00
monitoring Update stats for Read and ReadAsync in random_access_file_reader for async prefetching (#9810) 2022-04-06 14:26:53 -07:00
options Prevent double caching in the compressed secondary cache (#9747) 2022-04-11 13:28:33 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port #include <winioctl.h> as MSDN prescribes (#9612) 2022-03-13 17:01:21 -07:00
table Enable async prefetching for ReadOptions.readahead_size (#9827) 2022-04-11 13:46:57 -07:00
test_util Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
third-party Work around some new clang-analyze failures (#9515) 2022-02-07 18:24:36 -08:00
tools Prevent double caching in the compressed secondary cache (#9747) 2022-04-11 13:28:33 -07:00
trace_replay Added TraceOptions::preserve_write_order (#9334) 2021-12-28 15:04:26 -08:00
util Plugin Registry (#7949) 2022-04-11 13:44:09 -07:00
utilities Plugin Registry (#7949) 2022-04-11 13:44:09 -07:00
.clang-format
.gitignore gitignore cmake-build-* for CLion integration (#7933) 2021-02-19 13:43:15 -08:00
.lgtm.yml
.travis.yml Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
.watchmanconfig
AUTHORS
CMakeLists.txt Plugin Registry (#7949) 2022-04-11 13:44:09 -07:00
CODE_OF_CONDUCT.md
CONTRIBUTING.md
COPYING
crash_test.mk Add new determinators for multiops transactions stress test (#9708) 2022-03-23 22:29:50 -07:00
DEFAULT_OPTIONS_HISTORY.md Add Options::DisableExtraChecks, clarify force_consistency_checks (#9363) 2022-01-18 17:31:03 -08:00
DUMP_FORMAT.md
HISTORY.md Enable async prefetching for ReadOptions.readahead_size (#9827) 2022-04-11 13:46:57 -07:00
INSTALL.md Add microbench document (#9781) 2022-03-31 17:17:44 -07:00
issue_template.md
LANGUAGE-BINDINGS.md Update branch name to "main" in README/LANGUAGE_BINDINGS (#8727) 2021-09-01 15:26:34 -07:00
LICENSE.Apache
LICENSE.leveldb
Makefile Plugin Registry (#7949) 2022-04-11 13:44:09 -07:00
PLUGINS.md Move RADOS support to separate repo (#9206) 2022-01-24 22:50:07 -08:00
python.mk crash_test Makefile refactoring, add to CircleCI (#9702) 2022-03-16 15:58:06 -07:00
README.md README: De-list slack channel, list Google group (#9387) 2022-01-18 08:19:48 -08:00
ROCKSDB_LITE.md Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
src.mk Prevent double caching in the compressed secondary cache (#9747) 2022-04-11 13:28:33 -07:00
TARGETS Prevent double caching in the compressed secondary cache (#9747) 2022-04-11 13:28:33 -07:00
thirdparty.inc
USERS.md Add Solana's RocksDB use case in USERS.md (#9558) 2022-02-16 09:23:01 -08:00
Vagrantfile
WINDOWS_PORT.md Update branch name in WINDOWS_PORT.md (#8745) 2021-09-01 19:26:39 -07:00

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/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.