fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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akankshamahajan 749b179c04 Remove reallocation of AlignedBuffer in direct_io sync reads if already aligned (#11600) ... Summary: Remove reallocation of AlignedBuffer in direct_io sync reads in RandomAccessFileReader::Read if buffer passed is already aligned. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11600 Test Plan: Setup: `TEST_TMPDIR=./tmp-db/ ./db_bench -benchmarks=filluniquerandom -disable_auto_compactions=true -target_file_size_base=1048576 -write_buffer_size=1048576 -compression_type=none` Benchmark: `TEST_TMPDIR=./tmp-db/ perf record ./db_bench --cache_size=8388608 --use_existing_db=true --disable_auto_compactions=true --benchmarks=seekrandom --use_direct_reads=true -use_direct_io_for_flush_and_compaction=true -reads=1000 -seek_nexts=1 -max_auto_readahead_size=131072 -initial_auto_readahead_size=16384 -adaptive_readahead=true -num_file_reads_for_auto_readahead=0` Perf profile- Before: ``` 8.73% db_bench libc.so.6 [.] __memmove_evex_unaligned_erms 3.34% db_bench [kernel.vmlinux] [k] filemap_get_read_batch ``` After: ``` 2.50% db_bench [kernel.vmlinux] [k] filemap_get_read_batch 2.29% db_bench libc.so.6 [.] __memmove_evex_unaligned_erms ``` `make crash_test -j `with direct_io enabled completed succesfully locally. Ran few benchmarks with direct_io from seek_nexts varying between 912 to 327680 and different readahead_size parameters and it showed no regression so far. Reviewed By: ajkr Differential Revision: D47478598 Pulled By: akankshamahajan15 fbshipit-source-id: 6a48e21cb34696f5d09c22a6311a3a1cb5f9cf33		1 year ago
..
delete_scheduler.cc	Add a ticker to track number of trash files deleted in background thread (#11540)	1 year ago
delete_scheduler.h	Remove RocksDB LITE (#11147)	2 years ago
delete_scheduler_test.cc	Add a ticker to track number of trash files deleted in background thread (#11540)	1 year ago
file_prefetch_buffer.cc	Fix extra prefetching when num_file_reads_for_auto_readahead is 1 in async_io (#11560)	1 year ago
file_prefetch_buffer.h	Fix higher read qps during db open caused by pr 11406 (#11516)	1 year ago
file_util.cc	Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288)	2 years ago
file_util.h	Add an interface to provide support for underlying FS to pass their own buffer during reads (#11324)	1 year ago
filename.cc	Run Clang format on file folder (#10860)	2 years ago
filename.h	Run Clang format on file folder (#10860)	2 years ago
line_file_reader.cc	Support read rate-limiting in SequentialFileReader (#9973)	3 years ago
line_file_reader.h	Support read rate-limiting in SequentialFileReader (#9973)	3 years ago
prefetch_test.cc	Fix extra prefetching when num_file_reads_for_auto_readahead is 1 in async_io (#11560)	1 year ago
random_access_file_reader.cc	Remove reallocation of AlignedBuffer in direct_io sync reads if already aligned (#11600)	1 year ago
random_access_file_reader.h	Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288)	2 years ago
random_access_file_reader_test.cc	Add an interface to provide support for underlying FS to pass their own buffer during reads (#11324)	1 year ago
read_write_util.cc	Run Clang format on file folder (#10860)	2 years ago
read_write_util.h	Run Clang format on file folder (#10860)	2 years ago
readahead_file_info.h	Reuse internal auto readhead_size at each Level (expect L0) for Iterations (#9056)	3 years ago
readahead_raf.cc	Change internal headers with duplicate names (#11408)	2 years ago
readahead_raf.h	Make StringEnv, StringSink, StringSource use FS classes (#7786)	4 years ago
sequence_file_reader.cc	Change internal headers with duplicate names (#11408)	2 years ago
sequence_file_reader.h	Remove RocksDB LITE (#11147)	2 years ago
sst_file_manager_impl.cc	Remove RocksDB LITE (#11147)	2 years ago
sst_file_manager_impl.h	Remove RocksDB LITE (#11147)	2 years ago
writable_file_writer.cc	Change internal headers with duplicate names (#11408)	2 years ago
writable_file_writer.h	Remove RocksDB LITE (#11147)	2 years ago