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876c2dbff4
rocksdb/util
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sdong 876c2dbff4 Allow readahead when reading option files. (#6372) 
Summary:
Right, when reading from option files, no readahead is used and 8KB buffer is used. It might introduce high latency if the file system provide high latency and doesn't do readahead. Instead, introduce a readahead to the file. When calling inside DB, infer the value from options.log_readahead. Otherwise, a default 512KB readahead size is used.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6372

Test Plan: Add --log_readahead_size in db_bench. Run it with several options and observe read size from option files using strace.

Differential Revision: D19727739

fbshipit-source-id: e6d8053b0a64259abc087f1f388b9cd66fa8a583
2020-02-07 15:18:26 -08:00
..
aligned_buffer.h Document AlignedBuffer (#5345) 2019-05-24 10:05:40 -07:00
autovector_test.cc Move some memory related files from util/ to memory/ (#5382) 2019-05-30 17:44:09 -07:00
autovector.h Fix the constness issues around autovector::iterator_impl's dereference operators (#6057) 2019-11-22 21:23:00 -08:00
bloom_impl.h Warn on excessive keys for legacy Bloom filter with 32-bit hash (#6317) 2020-01-20 21:31:47 -08:00
bloom_test.cc Expose and elaborate FilterBuildingContext (#6088) 2019-11-26 18:24:10 -08:00
build_version.cc.in Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
build_version.h Change RocksDB License 2017-07-15 16:11:23 -07:00
cast_util.h Add a missing "once" in .h 2017-07-31 12:12:03 -07:00
channel.h Fix build breakage from lock_guard error (#6161) 2019-12-12 13:50:27 -08:00
coding_test.cc Move test related files under util/ to test_util/ (#5377) 2019-05-30 11:25:51 -07:00
coding.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
coding.h Avoid user key copying for Get/Put/Write with user-timestamp (#5502) 2019-07-25 15:27:39 -07:00
compaction_job_stats_impl.cc Refresh snapshot list during long compactions (2nd attempt) (#5278) 2019-05-03 17:30:22 -07:00
comparator.cc Add support for timestamp in Get/Put (#5079) 2019-06-05 23:10:47 -07:00
compression_context_cache.cc run make format for PR 3838 (#3954) 2018-06-05 12:58:02 -07:00
compression_context_cache.h run make format for PR 3838 (#3954) 2018-06-05 12:58:02 -07:00
compression.h crash_test to cover bottommost compression and some other changes (#6215) 2019-12-20 16:14:52 -08:00
concurrent_task_limiter_impl.cc Compaction limiter miscs (#4795) 2018-12-26 13:59:35 -08:00
concurrent_task_limiter_impl.h Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
core_local.h Change RocksDB License 2017-07-15 16:11:23 -07:00
crc32c_arm64.cc Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
crc32c_arm64.h Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
crc32c_ppc_asm.S Remove PATENTS text from a few straggler files (#5326) 2019-05-21 16:22:35 -07:00
crc32c_ppc_constants.h Remove PATENTS text from a few straggler files (#5326) 2019-05-21 16:22:35 -07:00
crc32c_ppc.c C file should not include <cinttypes>, it is a C++ header. (#5499) 2019-06-24 16:12:39 -07:00
crc32c_ppc.h Remove PATENTS text from a few straggler files (#5326) 2019-05-21 16:22:35 -07:00
crc32c_test.cc Move test related files under util/ to test_util/ (#5377) 2019-05-30 11:25:51 -07:00
crc32c.cc Cleanup the Arm64 CRC32 unused warning (#5565) 2019-07-15 11:20:26 -07:00
crc32c.h Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
duplicate_detector.h simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
dynamic_bloom_test.cc Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
dynamic_bloom.cc Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
dynamic_bloom.h MultiGet batching in memtable (#5818) 2019-10-10 09:39:39 -07:00
file_reader_writer_test.cc Allow readahead when reading option files. (#6372) 2020-02-07 15:18:26 -08:00
filelock_test.cc Move some memory related files from util/ to memory/ (#5382) 2019-05-30 17:44:09 -07:00
filter_bench.cc fix build warnnings on MSVC (#6309) 2020-01-30 16:07:26 -08:00
gflags_compat.h filter_bench - a prelim tool for SST filter benchmarking (#5825) 2019-10-07 20:10:53 -07:00
hash_map.h Change RocksDB License 2017-07-15 16:11:23 -07:00
hash_test.cc Add new persistent 64-bit hash (#5984) 2019-10-31 16:36:35 -07:00
hash.cc Add new persistent 64-bit hash (#5984) 2019-10-31 16:36:35 -07:00
hash.h Add new persistent 64-bit hash (#5984) 2019-10-31 16:36:35 -07:00
heap_test.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
heap.h Add compaction logic to RangeDelAggregatorV2 (#4758) 2018-12-17 13:20:51 -08:00
kv_map.h Consolidate hash function used for non-persistent data in a new function (#5155) 2019-04-08 13:32:06 -07:00
log_write_bench.cc Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
murmurhash.cc Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00
murmurhash.h Change RocksDB License 2017-07-15 16:11:23 -07:00
mutexlock.h Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
ppc-opcode.h Remove PATENTS text from a few straggler files (#5326) 2019-05-21 16:22:35 -07:00
random_test.cc Add useful idioms to Random API (OneInOpt, PercentTrue) (#6154) 2019-12-13 14:30:14 -08:00
random.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
random.h Add useful idioms to Random API (OneInOpt, PercentTrue) (#6154) 2019-12-13 14:30:14 -08:00
rate_limiter_test.cc Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
rate_limiter.cc Move some memory related files from util/ to memory/ (#5382) 2019-05-30 17:44:09 -07:00
rate_limiter.h rate limit auto-tuning 2017-10-04 19:15:01 -07:00
repeatable_thread_test.cc Move some memory related files from util/ to memory/ (#5382) 2019-05-30 17:44:09 -07:00
repeatable_thread.h Move test related files under util/ to test_util/ (#5377) 2019-05-30 11:25:51 -07:00
set_comparator.h WritePrepared Txn: Move DuplicateDetector to util 2018-03-05 23:57:12 -08:00
slice_test.cc Support move semantics for PinnableSlice (#6374) 2020-02-07 14:26:26 -08:00
slice_transform_test.cc Move test related files under util/ to test_util/ (#5377) 2019-05-30 11:25:51 -07:00
slice.cc Support move semantics for PinnableSlice (#6374) 2020-02-07 14:26:26 -08:00
status.cc Work around weird unused errors with Mingw (#6075) 2019-11-26 21:42:29 -08:00
stderr_logger.h Change RocksDB License 2017-07-15 16:11:23 -07:00
stop_watch.h Make statistics's stats_level change thread-safe (#5030) 2019-03-01 10:42:09 -08:00
string_util.cc Refactor trimming logic for immutable memtables (#5022) 2019-08-23 13:55:34 -07:00
string_util.h Refactor trimming logic for immutable memtables (#5022) 2019-08-23 13:55:34 -07:00
thread_list_test.cc Move test related files under util/ to test_util/ (#5377) 2019-05-30 11:25:51 -07:00
thread_local_test.cc Fix thread_local_test failure caused by recent io_uring change (#6136) 2019-12-09 12:03:30 -08:00
thread_local.cc Enable building of ARM32 (#4349) 2018-10-09 16:58:25 -07:00
thread_local.h Provide a way to override windows memory allocator with jemalloc for ZSTD 2018-06-04 12:12:48 -07:00
thread_operation.h Add inline comments to flush job (#4464) 2018-10-05 15:41:17 -07:00
threadpool_imp.cc Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
threadpool_imp.h Support lowering CPU priority of background threads 2018-04-24 08:41:51 -07:00
timer_queue_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
timer_queue.h Move test related files under util/ to test_util/ (#5377) 2019-05-30 11:25:51 -07:00
user_comparator_wrapper.h Fix perf_context.user_key_comparison_count for range scan (#5098) 2019-03-27 10:34:27 -07:00
util.h Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00
vector_iterator.h Make clang-analyzer happy (#5821) 2019-09-18 15:25:48 -07:00
xxh3p.h Add new persistent 64-bit hash (#5984) 2019-10-31 16:36:35 -07:00
xxhash.cc Add new persistent 64-bit hash (#5984) 2019-10-31 16:36:35 -07:00
xxhash.h Misc hashing updates / upgrades (#5909) 2019-10-24 17:16:46 -07:00