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rocksdb/util
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sdong 9a8e3f73ed plain table reader: non-mmap mode to keep two recent buffers 
Summary: In plain table reader's non-mmap mode, we only keep the most recent read buffer. However, for binary search, it is likely we come back to a location to read. To avoid one pread in such a case, we keep two read buffers. It should cover most of the cases.

Test Plan:
1. run tests
2. check the optimization works through strace when running
./table_reader_bench -mmap_read=false --num_keys2=1 -num_keys1=5000 -table_factory=plain_table --iterator --through_db

Reviewers: anthony, rven, kradhakrishnan, igor, yhchiang, IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D51171
2016-01-08 10:53:57 -08:00
..
aligned_buffer.h
Address code review comments both GH and internal
2015-09-11 17:36:48 -07:00
allocator.h
Enforce write buffer memory limit across column families
2014-12-02 12:09:20 -08:00
arena_test.cc
Enable MS compiler warning c4244.
2015-12-11 16:47:34 -08:00
arena.cc
support for concurrent adds to memtable
2015-12-25 11:03:40 -08:00
arena.h
support for concurrent adds to memtable
2015-12-25 11:03:40 -08:00
auto_roll_logger_test.cc
Clean and expose CreateLoggerFromOptions
2015-10-29 18:07:37 -07:00
auto_roll_logger.cc
Clean and expose CreateLoggerFromOptions
2015-10-29 18:07:37 -07:00
auto_roll_logger.h
Clean and expose CreateLoggerFromOptions
2015-10-29 18:07:37 -07:00
autovector_test.cc
Make autovector_test runnable in ROCKSDB_LITE
2015-06-18 15:58:00 -07:00
autovector.h
"make format" against last 10 commits
2015-07-13 13:50:18 -07:00
bloom_test.cc
Skipped tests shouldn't be failures
2015-09-15 18:10:36 -07:00
bloom.cc
fix typos
2015-04-25 18:14:27 +09:00
build_version.h
build: do not relink every single binary just for a timestamp
2015-02-19 13:11:10 -08:00
cache_bench.cc
Fix -Wshadow for tools
2014-11-07 15:04:30 -08:00
cache_test.cc
Fix memory leaks in PinnedUsageTest
2015-06-19 09:43:08 -07:00
cache.cc
Replace malloc with new for LRU Cache Handle
2015-12-04 15:12:07 -08:00
channel.h
Multithreaded backup and restore in BackupEngineImpl
2015-07-02 11:35:51 -07:00
coding_test.cc
rocksdb: switch to gtest
2015-03-17 14:08:00 -07:00
coding.cc
Removing BitStream* functions
2014-08-19 06:48:21 -07:00
coding.h
Enable C4267 warning
2015-11-24 16:33:09 +03:00
compaction_job_stats_impl.cc
Fix compaction_job_stats under ROCKSDB_LITE
2015-09-14 12:42:06 -07:00
comparator.cc
Added Equal method to Comparator interface
2015-09-08 15:30:49 -07:00
compression.h
ZSTD to use CompressionOptions.level
2015-12-16 16:58:04 -08:00
concurrent_arena.cc
Fix CLANG errors introduced by 7d87f02799bd0a8fd36df24fab5baa4968615c86
2015-12-28 10:00:58 -08:00
concurrent_arena.h
Not generating "__attribute__((__unused__))" for padding fields if it is not CLANG
2015-12-28 18:37:23 -08:00
crc32c_test.cc
rocksdb: switch to gtest
2015-03-17 14:08:00 -07:00
crc32c.cc
Print Fast CRC32 support information in DB LOG
2015-07-10 17:59:36 -07:00
crc32c.h
Print Fast CRC32 support information in DB LOG
2015-07-10 17:59:36 -07:00
db_info_dumper.cc
Change the log level of DB start-up log from Warn to Header.
2015-09-16 11:31:45 -07:00
db_info_dumper.h
Fix iOS compile with -Wshorten-64-to-32
2014-11-13 14:39:30 -05:00
delete_scheduler_impl.cc
Rate limit deletes issued by DestroyDB
2015-08-19 15:02:17 -07:00
delete_scheduler_impl.h
Rate limit deletes issued by DestroyDB
2015-08-19 15:02:17 -07:00
delete_scheduler_test.cc
Clear SyncPoint Trace in DeleteSchedulerTests
2015-09-28 15:58:50 -07:00
dynamic_bloom_test.cc
Fix DynamicBloomTest.concurrent_with_perf to pass TSAN
2015-12-29 16:28:45 -08:00
dynamic_bloom.cc
support for concurrent adds to memtable
2015-12-25 11:03:40 -08:00
dynamic_bloom.h
support for concurrent adds to memtable
2015-12-25 11:03:40 -08:00
env_hdfs.cc
more foramt
2015-12-26 19:52:35 -08:00
env_posix.cc
Running manual compactions in parallel with other automatic or manual compactions in restricted cases
2015-12-14 11:20:34 -08:00
env_test.cc
Make use of portable uint64_t type to make possible file access
2015-11-10 17:03:42 -08:00
env.cc
Lint everything
2015-11-16 12:56:21 -08:00
event_logger_test.cc
rocksdb: switch to gtest
2015-03-17 14:08:00 -07:00
event_logger.cc
Allow EventLogger to directly log from a JSONWriter.
2015-05-21 15:39:30 -07:00
event_logger.h
Added JSON manifest dump option to ldb command
2015-07-17 10:07:40 -07:00
file_reader_writer_test.cc
Make use of portable uint64_t type to make possible file access
2015-11-10 17:03:42 -08:00
file_reader_writer.cc
Make use of portable uint64_t type to make possible file access
2015-11-10 17:03:42 -08:00
file_reader_writer.h
Make use of portable uint64_t type to make possible file access
2015-11-10 17:03:42 -08:00
file_util.cc
Fix iOS build
2015-10-19 13:40:44 -07:00
file_util.h
Rate limit deletes issued by DestroyDB
2015-08-19 15:02:17 -07:00
filelock_test.cc
rocksdb: switch to gtest
2015-03-17 14:08:00 -07:00
filter_policy.cc
Add appropriate LICENSE and Copyright message.
2013-10-16 17:48:41 -07:00
hash.cc
Turn on -Wshorten-64-to-32 and fix all the errors
2014-11-11 16:47:22 -05:00
hash.h
Introduce GetThreadList API
2014-11-20 10:49:32 -08:00
heap_test.cc
Fix compile on Mac
2015-07-16 11:22:21 +02:00
heap.h
Replace std::priority_queue in MergingIterator with custom heap, take 2
2015-07-15 03:34:40 -07:00
histogram_test.cc
fix typos
2015-04-25 18:14:27 +09:00
histogram.cc
Enable MS compiler warning c4244.
2015-12-11 16:47:34 -08:00
histogram.h
"make format" against last 10 commits
2015-07-13 13:50:18 -07:00
instrumented_mutex.cc
Make perf_context.db_mutex_lock_nanos and db_condition_wait_nanos only measures DB Mutex
2015-10-13 10:41:48 -07:00
instrumented_mutex.h
Add a counter for collecting the wait time on db mutex.
2015-02-04 21:39:45 -08:00
io_posix.cc
Make use of portable uint64_t type to make possible file access
2015-11-10 17:03:42 -08:00
io_posix.h
Make use of portable uint64_t type to make possible file access
2015-11-10 17:03:42 -08:00
iostats_context_imp.h
Removed two unused macros in iostats_context
2015-06-12 10:45:02 -07:00
iostats_context.cc
Add options.compaction_measure_io_stats to print write I/O stats in compactions
2015-08-13 16:52:26 -07:00
kv_map.h
Moving memtable related files from util to a new directory memtable
2015-10-16 14:10:33 -07:00
log_buffer.cc
Commit both PR and internal code review changes
2015-07-07 16:58:20 -07:00
log_buffer.h
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
log_write_bench.cc
Fix more gflag namespace issues
2014-05-09 08:41:02 -07:00
logging.cc
Make the benchmark scripts configurable and add tests
2015-03-30 11:28:25 -07:00
logging.h
Make the benchmark scripts configurable and add tests
2015-03-30 11:28:25 -07:00
memenv_test.cc
Improved FileExists API
2015-07-20 17:20:40 -07:00
memenv.cc
Refactor to support file_reader_writer on Windows.
2015-09-11 09:57:02 -07:00
mock_env_test.cc
Improved FileExists API
2015-07-20 17:20:40 -07:00
mock_env.cc
Refactor to support file_reader_writer on Windows.
2015-09-11 09:57:02 -07:00
mock_env.h
[Cleanup] Remove RandomRWFile
2015-08-12 10:18:59 -07:00
murmurhash.cc
Add appropriate LICENSE and Copyright message.
2013-10-16 17:48:41 -07:00
murmurhash.h
Turn on -Wshorten-64-to-32 and fix all the errors
2014-11-11 16:47:22 -05:00
mutable_cf_options.cc
Deprecate options.soft_rate_limit and add options.soft_pending_compaction_bytes_limit
2015-12-09 18:22:45 -08:00
mutable_cf_options.h
Deprecate options.soft_rate_limit and add options.soft_pending_compaction_bytes_limit
2015-12-09 18:22:45 -08:00
mutexlock.h
support for concurrent adds to memtable
2015-12-25 11:03:40 -08:00
options_builder.cc
Enable C4267 warning
2015-11-24 16:33:09 +03:00
options_helper.cc
Deprecate options.soft_rate_limit and add options.soft_pending_compaction_bytes_limit
2015-12-09 18:22:45 -08:00
options_helper.h
Deprecate options.soft_rate_limit and add options.soft_pending_compaction_bytes_limit
2015-12-09 18:22:45 -08:00
options_parser.cc
Resubmit the fix for a race condition in persisting options
2015-12-08 17:01:02 -08:00
options_parser.h
Add OptionsUtil::LoadOptionsFromFile() API
2015-11-12 06:52:43 -08:00
options_sanity_check.cc
Add OptionsSanityCheckLevel
2015-11-04 18:53:30 -08:00
options_sanity_check.h
Fix clang compile error under Linux
2015-12-24 12:41:40 +08:00
options_test.cc
Merge pull request #839 from SherlockNoMad/memtableOption
2015-11-17 17:09:49 -08:00
options.cc
support for concurrent adds to memtable
2015-12-25 11:03:40 -08:00
perf_context_imp.h
Make perf_context.db_mutex_lock_nanos and db_condition_wait_nanos only measures DB Mutex
2015-10-13 10:41:48 -07:00
perf_context.cc
bloom hit/miss stats for SST and memtable
2015-10-07 11:23:20 -07:00
perf_level_imp.h
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
perf_level.cc
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
perf_step_timer.h
more times in perf_context and iostats_context
2015-06-02 02:07:58 -07:00
posix_logger.h
Commit both PR and internal code review changes
2015-07-07 16:58:20 -07:00
random.cc
remove constexpr from util/random.h for MSVC compat
2015-11-10 16:41:23 -08:00
random.h
remove constexpr from util/random.h for MSVC compat
2015-11-10 16:41:23 -08:00
rate_limiter_test.cc
Enable dynamic changing of rate limiter's bytes_per_second
2015-03-18 15:35:55 -07:00
rate_limiter.cc
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
rate_limiter.h
Fix another rebase problems.
2015-12-11 17:33:40 -08:00
skiplistrep.cc
support for concurrent adds to memtable
2015-12-25 11:03:40 -08:00
slice_transform_test.cc
rocksdb: switch to gtest
2015-03-17 14:08:00 -07:00
slice.cc
[RocksDB Options] Support more options in RocksDBOptionParser for sanity check.
2015-10-02 15:35:32 -07:00
statistics.cc
Relax memory order for faster tickers
2015-09-15 10:52:00 -07:00
statistics.h
Add Statistics.getHistogramString() to print more detailed outputs of a histogram
2015-08-05 20:05:56 -07:00
status_message.cc
Support static Status messages
2015-08-31 16:13:29 -07:00
status.cc
Support static Status messages
2015-08-31 16:13:29 -07:00
stop_watch.h
Compaction filter on merge operands
2015-10-07 09:30:03 -07:00
string_util.cc
Clean up StringSplit
2014-11-21 11:05:28 -05:00
string_util.h
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
sync_point.cc
crash_test to trigger some less frequent crash point more frequently
2015-10-27 12:06:06 -07:00
sync_point.h
fix typos in comments
2015-12-11 01:54:48 +09:00
testharness.cc
rocksdb: print status error message when (ASSERT|EXPECT)_OK fails
2015-03-19 17:32:43 -07:00
testharness.h
rocksdb: print status error message when (ASSERT|EXPECT)_OK fails
2015-03-19 17:32:43 -07:00
testutil.cc
Add OptionsUtil::LoadOptionsFromFile() API
2015-11-12 06:52:43 -08:00
testutil.h
plain table reader: non-mmap mode to keep two recent buffers
2016-01-08 10:53:57 -08:00
thread_list_test.cc
rocksdb: switch to gtest
2015-03-17 14:08:00 -07:00
thread_local_test.cc
Build on Visual Studio 2015 Update 1
2015-11-20 15:31:47 -08:00
thread_local.cc
Ensure the destruction order of PosixEnv and ThreadLocalPtr
2015-12-11 00:21:58 -08:00
thread_local.h
Ensure the destruction order of PosixEnv and ThreadLocalPtr
2015-12-11 00:21:58 -08:00
thread_operation.h
Deprecate CompactionFilterV2
2015-07-17 18:59:11 +02:00
thread_posix.cc
Running manual compactions in parallel with other automatic or manual compactions in restricted cases
2015-12-14 11:20:34 -08:00
thread_posix.h
Running manual compactions in parallel with other automatic or manual compactions in restricted cases
2015-12-14 11:20:34 -08:00
thread_status_impl.cc
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
thread_status_updater_debug.cc
Allow GetThreadList() to indicate a thread is doing Compaction.
2015-01-13 00:04:08 -08:00
thread_status_updater.cc
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
thread_status_updater.h
Windows Port from Microsoft
2015-07-01 16:13:56 -07:00
thread_status_util_debug.cc
Fix bad performance in debug mode
2015-04-13 15:58:45 -07:00
thread_status_util.cc
Only initialize the ThreadStatusData when necessary.
2015-06-17 11:21:18 -07:00
thread_status_util.h
Only initialize the ThreadStatusData when necessary.
2015-06-17 11:21:18 -07:00
vectorrep.cc
Moving memtable related files from util to a new directory memtable
2015-10-16 14:10:33 -07:00
xfunc.cc
New amalgamation target
2015-10-01 08:29:31 +13:00
xfunc.h
Merge the latest changes from github/master
2015-07-02 17:23:41 -07:00
xxhash.cc
Enable MS Warning C4804 : unsafe use of type 'bool' in operation
2015-11-18 16:23:19 -08:00
xxhash.h
Prevent xxhash symbols from polluting global namespace
2015-03-12 12:07:10 -07:00