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Author	SHA1	Message	Date
anand76	63ace8ef0e	Reuse data block iterator in BlockBasedTableReader::MultiGet() (#5314 ) Summary: Instead of creating a new DataBlockIterator for every key in a MultiGet batch, reuse it if the next key is in the same block. This results in a small 1-2% cpu improvement. TEST_TMPDIR=/dev/shm/multiget numactl -C 10 ./db_bench.tmp -use_existing_db=true -benchmarks="readseq,multireadrandom" -write_buffer_size=4194304 -target_file_size_base=4194304 -max_bytes_for_level_base=16777216 -num=12000000 -reads=12000000 -duration=90 -threads=1 -compression_type=none -cache_size=4194304000 -batch_size=32 -disable_auto_compactions=true -bloom_bits=10 -cache_index_and_filter_blocks=true -pin_l0_filter_and_index_blocks_in_cache=true -multiread_batched=true -multiread_stride=4 Without the change - multireadrandom : 3.066 micros/op 326122 ops/sec; (29375968 of 29375968 found) With the change - multireadrandom : 3.003 micros/op 332945 ops/sec; (29983968 of 29983968 found) Pull Request resolved: https://github.com/facebook/rocksdb/pull/5314 Differential Revision: D15742108 Pulled By: anand1976 fbshipit-source-id: 220fb0b8eea9a0d602ddeb371528f7af7936d771	2019-06-10 13:31:19 -07:00
Siying Dong	8843129ece	Move some memory related files from util/ to memory/ (#5382 ) Summary: Move arena, allocator, and memory tools under util to a separate memory/ directory. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5382 Differential Revision: D15564655 Pulled By: siying fbshipit-source-id: 9cd6b5d0d3d52b39606e19221fa154596e5852a5	2019-05-30 17:44:09 -07:00
Vijay Nadimpalli	50e470791d	Organizing rocksdb/table directory by format Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5373 Differential Revision: D15559425 Pulled By: vjnadimpalli fbshipit-source-id: 5d6d6d615582bedd96a4b879bb25d429a6de8b55	2019-05-30 14:51:11 -07:00

Author

SHA1

Message

Date

anand76

63ace8ef0e

Reuse data block iterator in BlockBasedTableReader::MultiGet() (#5314 )

Summary:
Instead of creating a new DataBlockIterator for every key in a MultiGet batch, reuse it if the next key is in the same block. This results in a small 1-2% cpu improvement.

TEST_TMPDIR=/dev/shm/multiget numactl -C 10  ./db_bench.tmp -use_existing_db=true -benchmarks="readseq,multireadrandom" -write_buffer_size=4194304 -target_file_size_base=4194304 -max_bytes_for_level_base=16777216 -num=12000000 -reads=12000000 -duration=90 -threads=1 -compression_type=none -cache_size=4194304000 -batch_size=32 -disable_auto_compactions=true -bloom_bits=10 -cache_index_and_filter_blocks=true -pin_l0_filter_and_index_blocks_in_cache=true -multiread_batched=true -multiread_stride=4

Without the change -
multireadrandom :       3.066 micros/op 326122 ops/sec; (29375968 of 29375968 found)

With the change -
multireadrandom :       3.003 micros/op 332945 ops/sec; (29983968 of 29983968 found)
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5314

Differential Revision: D15742108

Pulled By: anand1976

fbshipit-source-id: 220fb0b8eea9a0d602ddeb371528f7af7936d771

2019-06-10 13:31:19 -07:00

Siying Dong

8843129ece

Move some memory related files from util/ to memory/ (#5382 )

Summary:
Move arena, allocator, and memory tools under util to a separate memory/ directory.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5382

Differential Revision: D15564655

Pulled By: siying

fbshipit-source-id: 9cd6b5d0d3d52b39606e19221fa154596e5852a5

2019-05-30 17:44:09 -07:00

Vijay Nadimpalli

50e470791d

Organizing rocksdb/table directory by format

Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5373

Differential Revision: D15559425

Pulled By: vjnadimpalli

fbshipit-source-id: 5d6d6d615582bedd96a4b879bb25d429a6de8b55

2019-05-30 14:51:11 -07:00

3 Commits