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972f96b3fb
rocksdb/utilities
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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
..
backupable direct io write support 2016-12-22 13:09:19 -08:00
blob_db Support SST files with Global sequence numbers [reland] 2016-10-18 16:59:37 -07:00
checkpoint fix typo in comments (#1360) 2016-09-27 20:39:15 -07:00
compaction_filters Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
convenience Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
date_tiered DeleteRange user iterator support 2016-11-04 12:09:22 -07:00
document Gcc 7 fallthrough 2016-12-14 19:24:25 -08:00
geodb Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
leveldb_options Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
lua rocks_lua_compaction_filter: add unused attribute to a variable 2016-11-21 14:54:14 -08:00
memory Disable auto compactions in memory_test and re-enable the test (#1408) 2016-10-19 18:18:42 -07:00
merge_operators Introduce FullMergeV2 (eliminate memcpy from merge operators) 2016-07-20 09:49:03 -07:00
option_change_migration option_change_migration_test: force full compaction when needed 2016-11-15 22:09:34 -08:00
options Only cache level 0 indexes and filter when opening table reader 2016-07-20 11:23:31 -07:00
persistent_cache persistent_cache: fix two timer 2016-12-21 13:39:16 -08:00
redis Eliminate use of 'using namespace std'. Also remove a number of ADL references to std functions. 2016-05-20 07:42:18 -07:00
simulator_cache Gcc-7 buffer size insufficient 2016-12-14 19:24:26 -08:00
spatialdb fix wrong assignment of level0_stop_writes_trigger in spatialdb (#1061) 2016-04-07 09:02:28 -07:00
table_properties_collectors Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
transactions gcc-7 requires include <functional> for std::function 2016-12-16 11:24:18 -08:00
ttl Add SeekForPrev() to Iterator 2016-09-27 18:20:57 -07:00
write_batch_with_index Avoid calling GetDBOptions() inside GetFromBatchAndDB() 2016-10-18 13:19:26 -07:00
col_buf_decoder.cc Fix clang on macOS 2016-08-03 10:41:27 -07:00
col_buf_decoder.h Fix clang build failure and refactor unit test 2016-08-02 15:16:39 -07:00
col_buf_encoder.cc Fix travis (compile for clang < 3.9) 2016-12-01 10:09:22 -08:00
col_buf_encoder.h Fix clang build failure and refactor unit test 2016-08-02 15:16:39 -07:00
column_aware_encoding_exp.cc Support ZSTD with finalized format 2016-09-06 12:22:16 -07:00
column_aware_encoding_test.cc Fix clang build failure and refactor unit test 2016-08-02 15:16:39 -07:00
column_aware_encoding_util.cc Fix Windows build issues (#1253) 2016-08-02 17:15:18 -07:00
column_aware_encoding_util.h Remove ImmutableCFOptions from public API 2016-09-02 14:16:31 -07:00
env_librados_test.cc Add EnvLibrados - RocksDB Env of RADOS (#1222) 2016-07-21 11:16:34 -07:00
env_librados.cc Add EnvLibrados - RocksDB Env of RADOS (#1222) 2016-07-21 11:16:34 -07:00
env_librados.md Add EnvLibrados - RocksDB Env of RADOS (#1222) 2016-07-21 11:16:34 -07:00
env_mirror_test.cc env: add EnvMirror 2015-12-10 21:32:45 -05:00
env_mirror.cc direct io write support 2016-12-22 13:09:19 -08:00
env_registry_test.cc Env registry for URI-based Env selection [pluggable Env part 1] 2016-06-03 08:15:16 -07:00
env_registry.cc Env registry for URI-based Env selection [pluggable Env part 1] 2016-06-03 08:15:16 -07:00
merge_operators.h Introduce FullMergeV2 (eliminate memcpy from merge operators) 2016-07-20 09:49:03 -07:00
util_merge_operators_test.cc Introduce FullMergeV2 (eliminate memcpy from merge operators) 2016-07-20 09:49:03 -07:00