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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
..
dump
rdb
auto_sanity_test.sh
benchmark.sh
benchmark_leveldb.sh
check_format_compatible.sh check_format_compatible.sh to use some branch which allows to run with GCC 4.8 (#1393) 2016-10-13 16:15:55 -07:00
CMakeLists.txt cmake support for linux and osx (#1358) 2016-09-28 11:53:15 -07:00
db_bench.cc
db_bench_tool.cc direct io write support 2016-12-22 13:09:19 -08:00
db_bench_tool_test.cc direct io write support 2016-12-22 13:09:19 -08:00
db_crashtest.py Disable ClockCache db_crashtest 2016-08-24 14:19:05 -07:00
db_repl_stress.cc
db_sanity_test.cc Support ZSTD with finalized format 2016-09-06 12:22:16 -07:00
db_stress.cc db_stress support for range deletions 2016-12-07 13:09:24 -08:00
dbench_monitor
Dockerfile
generate_random_db.sh
ldb.cc
ldb_cmd.cc gcc-7 requires include <functional> for std::function 2016-12-16 11:24:18 -08:00
ldb_cmd_impl.h ldb support for range delete 2016-11-15 15:54:20 -08:00
ldb_cmd_test.cc cast to signed char in ldb_cmd_test for ppc64le 2016-12-12 14:39:18 -08:00
ldb_test.py
ldb_tool.cc ldb support for range delete 2016-11-15 15:54:20 -08:00
pflag
reduce_levels_test.cc [ldb] Templatize the Selector 2016-05-13 12:12:39 -07:00
regression_test.sh Fix a bug that mistakenly disable regression_test.sh to update commit (#1415) 2016-10-21 17:26:24 -07:00
rocksdb_dump_test.sh
run_flash_bench.sh
run_leveldb.sh
sample-dump.dmp
sst_dump.cc
sst_dump_test.cc Add TableBuilderOptions::level and relevant changes (#1335) 2016-09-17 22:30:43 -07:00
sst_dump_tool.cc Print user collected properties in sst_dump 2016-12-14 11:24:11 -08:00
sst_dump_tool_imp.h Remove ImmutableCFOptions from public API 2016-09-02 14:16:31 -07:00
verify_random_db.sh
write_stress.cc
write_stress_runner.py