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Aaron Gao 972f96b3fb direct io write support 
Summary:
rocksdb direct io support

```
[gzh@dev11575.prn2 ~/rocksdb] ./db_bench -benchmarks=fillseq --num=1000000
Initializing RocksDB Options from the specified file
Initializing RocksDB Options from command-line flags
RocksDB:    version 5.0
Date:       Wed Nov 23 13:17:43 2016
CPU:        40 * Intel(R) Xeon(R) CPU E5-2660 v2 @ 2.20GHz
CPUCache:   25600 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-112628/dbbench]
fillseq      :       4.393 micros/op 227639 ops/sec;   25.2 MB/s

[gzh@dev11575.prn2 ~/roc
Closes https://github.com/facebook/rocksdb/pull/1564

Differential Revision: D4241093

Pulled By: lightmark

fbshipit-source-id: 98c29e3
2016-12-22 13:09:19 -08:00
..
auto_roll_logger_test.cc
Cleanup auto-roll logger flush-while-rolling test
2016-07-07 11:35:40 -07:00
auto_roll_logger.cc
Eliminate use of 'using namespace std'. Also remove a number of ADL references to std functions.
2016-05-20 07:42:18 -07:00
auto_roll_logger.h
Redo SyncPoints for flush while rolling test
2016-02-22 21:32:19 -08:00
builder.cc
Range deletion microoptimizations
2016-11-21 12:24:13 -08:00
builder.h
Remove Arena in RangeDelAggregator
2016-11-19 14:24:12 -08:00
c_test.c
Fix c_test
2016-12-21 17:39:14 -08:00
c.cc
direct io write support
2016-12-22 13:09:19 -08:00
column_family_test.cc
Improve Write Stalling System
2016-11-23 09:24:15 -08:00
column_family.cc
Fix implicit conversion between int64_t to int
2016-11-29 10:54:15 -08:00
column_family.h
Improve Write Stalling System
2016-11-23 09:24:15 -08:00
compact_files_test.cc
fix data race in compact_files_test
2016-10-19 13:37:51 -07:00
compacted_db_impl.cc
DeleteRange Get support
2016-11-03 18:54:20 -07:00
compacted_db_impl.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
compaction_iteration_stats.h
Support for range skips in compaction filter
2016-12-01 07:09:15 -08:00
compaction_iterator_test.cc
Fixed CompactionFilter::Decision::kRemoveAndSkipUntil
2016-12-05 15:24:11 -08:00
compaction_iterator.cc
Fixed CompactionFilter::Decision::kRemoveAndSkipUntil
2016-12-05 15:24:11 -08:00
compaction_iterator.h
Support for range skips in compaction filter
2016-12-01 07:09:15 -08:00
compaction_job_stats_test.cc
UniversalCompaction should ignore sorted runs being compacted (when compacting for file num)
2016-08-10 12:37:43 -07:00
compaction_job_test.cc
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
compaction_job.cc
Remove sst_file_manager option from LITE
2016-12-21 17:54:21 -08:00
compaction_job.h
DeleteRange compaction statistics
2016-11-28 11:54:12 -08:00
compaction_picker_test.cc
Compaction::IsTrivialMove relaxing
2016-12-07 11:54:11 -08:00
compaction_picker.cc
Change max_bytes_for_level_multiplier to double
2016-11-01 21:09:23 -07:00
compaction_picker.h
Compaction::IsTrivialMove relaxing
2016-12-07 11:54:11 -08:00
compaction.cc
Compaction::IsTrivialMove relaxing
2016-12-07 11:54:11 -08:00
compaction.h
Compaction::IsTrivialMove relaxing
2016-12-07 11:54:11 -08:00
comparator_db_test.cc
Add SeekForPrev() to Iterator
2016-09-27 18:20:57 -07:00
convenience.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
corruption_test.cc
Change several option defaults
2016-04-28 17:50:58 -07:00
cuckoo_table_db_test.cc
Enable allow_concurrent_memtable_write and enable_write_thread_adaptive_yield by default
2016-11-16 09:39:09 -08:00
db_block_cache_test.cc
Not insert into block cache if cache is full and not holding handle
2016-08-23 13:53:49 -07:00
db_bloom_filter_test.cc
Enable allow_concurrent_memtable_write and enable_write_thread_adaptive_yield by default
2016-11-16 09:39:09 -08:00
db_compaction_filter_test.cc
Support for range skips in compaction filter
2016-12-01 07:09:15 -08:00
db_compaction_test.cc
Eliminate redundant cache lookup with range deletion
2016-11-21 21:24:11 -08:00
db_dynamic_level_test.cc
Disable test to unblock travis build
2016-12-13 11:54:14 -08:00
db_filesnapshot.cc
Remove unnecessary header include
2016-12-09 11:54:21 -08:00
db_flush_test.cc
Fix unit test which breaks lite build
2016-07-21 14:32:12 -07:00
db_impl_debug.cc
Make max_background_compactions and base_background_compactions dynamic changeable
2016-10-14 12:25:39 -07:00
db_impl_experimental.cc
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
db_impl_readonly.cc
Lazily initialize RangeDelAggregator's map and pinning manager
2016-11-18 17:09:11 -08:00
db_impl_readonly.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
db_impl.cc
direct io write support
2016-12-22 13:09:19 -08:00
db_impl.h
Add EventListener::OnExternalFileIngested() event
2016-12-06 14:09:17 -08:00
db_info_dumper.cc
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
db_info_dumper.h
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
db_inplace_update_test.cc
Enable allow_concurrent_memtable_write and enable_write_thread_adaptive_yield by default
2016-11-16 09:39:09 -08:00
db_io_failure_test.cc
Add WriteOptions.no_slowdown
2016-11-21 18:09:13 -08:00
db_iter_test.cc
fix db_stress assertion failure
2016-10-18 16:07:10 -07:00
db_iter.cc
Collapse range deletions
2016-12-19 16:54:12 -08:00
db_iter.h
DeleteRange user iterator support
2016-11-04 12:09:22 -07:00
db_iterator_test.cc
gcc-7 requires include <functional> for std::function
2016-12-16 11:24:18 -08:00
db_log_iter_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
db_memtable_test.cc
Enable allow_concurrent_memtable_write and enable_write_thread_adaptive_yield by default
2016-11-16 09:39:09 -08:00
db_merge_operator_test.cc
Iterator should be in corrupted status if merge operator return false
2016-12-16 11:09:16 -08:00
db_options_test.cc
Made delete_obsolete_files_period_micros option dynamic
2016-12-05 14:24:16 -08:00
db_properties_test.cc
Unified InlineSkipList::Insert algorithm with hinting
2016-11-22 14:09:13 -08:00
db_range_del_test.cc
Collapse range deletions
2016-12-19 16:54:12 -08:00
db_sst_test.cc
Remove sst_file_manager option from LITE
2016-12-21 17:54:21 -08:00
db_table_properties_test.cc
DBTablePropertiesTest.GetPropertiesOfTablesInRange: Fix Flaky
2016-07-19 15:46:20 -07:00
db_tailing_iter_test.cc
Enable allow_concurrent_memtable_write and enable_write_thread_adaptive_yield by default
2016-11-16 09:39:09 -08:00
db_test2.cc
Dump persistent cache options
2016-12-19 14:09:12 -08:00
db_test_util.cc
direct io write support
2016-12-22 13:09:19 -08:00
db_test_util.h
direct io write support
2016-12-22 13:09:19 -08:00
db_test.cc
direct io write support
2016-12-22 13:09:19 -08:00
db_universal_compaction_test.cc
Restrict running condition of UniversalCompactionTrivialMoveTest2
2016-10-20 15:43:00 -07:00
db_wal_test.cc
Fix 2PC Recovery SeqId Miscount
2016-11-10 11:09:22 -08:00
dbformat_test.cc
Improve BytewiseComparatorImpl::FindShortestSeparator
2016-04-25 23:02:14 -07:00
dbformat.cc
Support for range skips in compaction filter
2016-12-01 07:09:15 -08:00
dbformat.h
Collapse range deletions
2016-12-19 16:54:12 -08:00
deletefile_test.cc
Fix a bug that accesses invalid address in iterator cleanup function
2016-07-05 11:57:14 -07:00
event_helpers.cc
Added EventListener::OnTableFileCreationStarted() callback
2016-04-29 11:35:00 -07:00
event_helpers.h
Added EventListener::OnTableFileCreationStarted() callback
2016-04-29 11:35:00 -07:00
experimental.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
external_sst_file_ingestion_job.cc
Fix issue where IngestExternalFile insert blocks in block cache with g_seqno=0
2016-12-08 13:39:18 -08:00
external_sst_file_ingestion_job.h
Add EventListener::OnExternalFileIngested() event
2016-12-06 14:09:17 -08:00
external_sst_file_test.cc
Expose file size
2016-12-16 18:39:12 -08:00
fault_injection_test.cc
Fix travis (compile for clang < 3.9)
2016-12-01 10:09:22 -08:00
file_indexer_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
file_indexer.cc
gcc-7 requires include <functional> for std::function
2016-12-16 11:24:18 -08:00
file_indexer.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
filename_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
filename.cc
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
filename.h
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
flush_job_test.cc
Make range deletion inclusive-exclusive
2016-11-14 17:39:13 -08:00
flush_job.cc
Fixed a crash in debug build in flush_job.cc
2016-12-09 10:39:12 -08:00
flush_job.h
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
flush_scheduler.cc
Fix clang analyzer errors
2016-07-08 17:50:51 -07:00
flush_scheduler.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
forward_iterator_bench.cc
direct io write support
2016-12-22 13:09:19 -08:00
forward_iterator.cc
Decouple data iterator and range deletion iterator in TableCache
2016-11-15 17:24:28 -08:00
forward_iterator.h
Add SeekForPrev() to Iterator
2016-09-27 18:20:57 -07:00
inlineskiplist_test.cc
Unified InlineSkipList::Insert algorithm with hinting
2016-11-22 14:09:13 -08:00
inlineskiplist.h
Unified InlineSkipList::Insert algorithm with hinting
2016-11-22 14:09:13 -08:00
internal_stats.cc
Increase buffer size
2016-12-09 11:54:22 -08:00
internal_stats.h
Exporting compaction stats in the form of a map
2016-11-11 20:54:14 -08:00
job_context.h
fixup commit
2016-10-13 08:48:40 -07:00
listener_test.cc
Gcc 7 error expansion to defined
2016-12-13 18:39:14 -08:00
log_format.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
log_reader.cc
Fix clang analyzer errors
2016-07-08 17:50:51 -07:00
log_reader.h
db/log_reader: treat bad record length or checksum as EOF
2016-05-22 22:00:15 -07:00
log_test.cc
db/log_reader: treat bad record length or checksum as EOF
2016-05-22 22:00:15 -07:00
log_writer.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
log_writer.h
Need to make sure log file synced before flushing memtable of one column family
2016-07-21 16:29:06 -07:00
managed_iterator.cc
Add SeekForPrev() to Iterator
2016-09-27 18:20:57 -07:00
managed_iterator.h
Add SeekForPrev() to Iterator
2016-09-27 18:20:57 -07:00
manual_compaction_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
memtable_allocator.cc
Avoid updating memtable allocated bytes if write_buffer_size is not set
2016-07-13 19:33:57 -07:00
memtable_allocator.h
Add options.write_buffer_manager: control total memtable size across DB instances
2016-07-05 18:11:25 -07:00
memtable_list_test.cc
DeleteRange Get support
2016-11-03 18:54:20 -07:00
memtable_list.cc
Remove Arena in RangeDelAggregator
2016-11-19 14:24:12 -08:00
memtable_list.h
DeleteRange user iterator support
2016-11-04 12:09:22 -07:00
memtable.cc
Simplify MemTable::Update
2016-12-17 00:09:13 -08:00
memtable.h
Range deletion microoptimizations
2016-11-21 12:24:13 -08:00
memtablerep_bench.cc
Add options.write_buffer_manager: control total memtable size across DB instances
2016-07-05 18:11:25 -07:00
merge_context.h
Fix MergeContext::copied_operands_ strings moving
2016-07-25 15:31:41 -07:00
merge_helper_test.cc
Compaction Support for Range Deletion
2016-10-18 12:04:56 -07:00
merge_helper.cc
Support for range skips in compaction filter
2016-12-01 07:09:15 -08:00
merge_helper.h
Support for range skips in compaction filter
2016-12-01 07:09:15 -08:00
merge_operator.cc
Introduce FullMergeV2 (eliminate memcpy from merge operators)
2016-07-20 09:49:03 -07:00
merge_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
options_file_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
perf_context_test.cc
CompactedDB should not be used if there is outstanding WAL files
2016-04-26 14:22:07 -07:00
pinned_iterators_manager.h
Minor PinnedIteratorsManager Refactoring
2016-08-11 11:54:17 -07:00
plain_table_db_test.cc
Allow plain table to store index on file with bloom filter disabled
2016-11-17 11:09:13 -08:00
prefix_test.cc
Enable allow_concurrent_memtable_write and enable_write_thread_adaptive_yield by default
2016-11-16 09:39:09 -08:00
range_del_aggregator_test.cc
Collapse range deletions
2016-12-19 16:54:12 -08:00
range_del_aggregator.cc
Collapse range deletions
2016-12-19 16:54:12 -08:00
range_del_aggregator.h
Collapse range deletions
2016-12-19 16:54:12 -08:00
repair_test.cc
ColumnFamilyOptions API [CF + RepairDB part 3/3]
2016-06-24 16:29:43 -07:00
repair.cc
Remove Arena in RangeDelAggregator
2016-11-19 14:24:12 -08:00
skiplist_test.cc
Add SeekForPrev() to Iterator
2016-09-27 18:20:57 -07:00
skiplist.h
Add SeekForPrev() to Iterator
2016-09-27 18:20:57 -07:00
snapshot_impl.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
snapshot_impl.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
table_cache.cc
Fix range deletion covering key in same SST file
2016-11-28 22:54:13 -08:00
table_cache.h
Eliminate redundant cache lookup with range deletion
2016-11-21 21:24:11 -08:00
table_properties_collector_test.cc
Change ioptions to store user_comparator, fix bug
2016-10-21 11:31:42 -07:00
table_properties_collector.cc
Added "number of merge operands" to statistics in ssts.
2016-05-19 14:24:48 -07:00
table_properties_collector.h
Added "number of merge operands" to statistics in ssts.
2016-05-19 14:24:48 -07:00
transaction_log_impl.cc
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
transaction_log_impl.h
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
version_builder_test.cc
Support running consistency checks in release mode
2016-10-07 17:21:45 -07:00
version_builder.cc
gcc-7 requires include <functional> for std::function
2016-12-16 11:24:18 -08:00
version_builder.h
Only cache level 0 indexes and filter when opening table reader
2016-07-20 11:23:31 -07:00
version_edit_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
version_edit.cc
Miscellaneous performance improvements
2016-07-12 14:15:32 -07:00
version_edit.h
Avoid FileMetaData copy
2016-07-13 15:36:22 -07:00
version_set_test.cc
Support running consistency checks in release mode
2016-10-07 17:21:45 -07:00
version_set.cc
Decouple data iterator and range deletion iterator in TableCache
2016-11-15 17:24:28 -08:00
version_set.h
DeleteRange user iterator support
2016-11-04 12:09:22 -07:00
wal_manager_test.cc
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
wal_manager.cc
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
wal_manager.h
Split DBOptions into ImmutableDBOptions and MutableDBOptions
2016-09-23 16:34:04 -07:00
write_batch_base.cc
WriteBatch support for range deletion
2016-08-16 08:16:04 -07:00
write_batch_internal.h
Add facility to write only a portion of WriteBatch to WAL
2016-10-07 11:32:10 -07:00
write_batch_test.cc
Range deletion microoptimizations
2016-11-21 12:24:13 -08:00
write_batch.cc
DeleteRange unsupported in non-block-based tables
2016-11-15 15:24:16 -08:00
write_callback_test.cc
gcc-7 requires include <functional> for std::function
2016-12-16 11:24:18 -08:00
write_callback.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
write_controller_test.cc
Improve Write Stalling System
2016-11-23 09:24:15 -08:00
write_controller.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
write_controller.h
Improve Write Stalling System
2016-11-23 09:24:15 -08:00
write_thread.cc
Bug: paralle_group status updated in WriteThread::CompleteParallelWorker
2016-12-01 09:54:11 -08:00
write_thread.h
Add WriteOptions.no_slowdown
2016-11-21 18:09:13 -08:00
xfunc_test_points.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
xfunc_test_points.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00