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Akanksha Mahajan 3653029dda Add stats related to async prefetching (#9845) 
Summary:
Add stats PREFETCHED_BYTES_DISCARDED and POLL_WAIT_MICROS.
PREFETCHED_BYTES_DISCARDED records number of prefetched bytes discarded by
FilePrefetchBuffer. POLL_WAIT_MICROS records the time taken by underling
file_system Poll API.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9845

Test Plan: Update existing tests

Reviewed By: anand1976

Differential Revision: D35909694

Pulled By: akankshamahajan15

fbshipit-source-id: e009ef940bb9ed72c9446f5529095caabb8a1e36
 		2022-04-25 21:58:22 -07:00
..
adaptive More refactoring ahead of footer & meta changes (#9240) 2021-12-10 08:13:26 -08:00
block_based Add stats related to async prefetching (#9845) 2022-04-25 21:58:22 -07:00
cuckoo Add rate limiter priority to ReadOptions (#9424) 2022-02-16 23:18:14 -08:00
plain Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
block_fetcher.cc Fix segfault in FilePrefetchBuffer with async_io enabled (#9777) 2022-04-04 15:35:43 -07:00
block_fetcher.h More refactoring ahead of footer & meta changes (#9240) 2021-12-10 08:13:26 -08:00
block_fetcher_test.cc Make MemoryAllocator into a Customizable class (#8980) 2021-12-17 04:20:47 -08:00
cleanable_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
format.cc Add rate limiter priority to ReadOptions (#9424) 2022-02-16 23:18:14 -08:00
format.h Optimize & clean up footer code (#9280) 2021-12-13 17:43:07 -08:00
get_context.cc Support readahead during compaction for blob files (#9187) 2021-11-19 17:53:47 -08:00
get_context.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
internal_iterator.h Reuse internal auto readhead_size at each Level (expect L0) for Iterations (#9056) 2021-11-10 16:20:04 -08:00
iter_heap.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
iterator.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
iterator_wrapper.h Reuse internal auto readhead_size at each Level (expect L0) for Iterations (#9056) 2021-11-10 16:20:04 -08:00
merger_test.cc Cleanup multiple implementations of VectorIterator (#8901) 2021-10-06 07:48:31 -07:00
merging_iterator.cc MergingIterator: rearrange fields to reduce paddings (#9024) 2021-10-14 12:01:56 -07:00
merging_iterator.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
meta_blocks.cc Tests for filter compatibility (#9773) 2022-04-06 15:54:40 -07:00
meta_blocks.h Tests for filter compatibility (#9773) 2022-04-06 15:54:40 -07:00
mock_table.cc Add rate limiter priority to ReadOptions (#9424) 2022-02-16 23:18:14 -08:00
mock_table.h Fix some minor issues in the Customizable infrastructure (#8566) 2021-08-19 10:10:47 -07:00
multiget_context.h Fix major bug with MultiGet, DeleteRange, and memtable Bloom (#9453) 2022-01-27 14:55:04 -08:00
persistent_cache_helper.cc New stable, fixed-length cache keys (#9126) 2021-12-16 17:15:13 -08:00
persistent_cache_helper.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
persistent_cache_options.h New stable, fixed-length cache keys (#9126) 2021-12-16 17:15:13 -08:00
scoped_arena_iterator.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
sst_file_dumper.cc New backup meta schema, with file temperatures (#9660) 2022-03-18 11:06:17 -07:00
sst_file_dumper.h New backup meta schema, with file temperatures (#9660) 2022-03-18 11:06:17 -07:00
sst_file_reader.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
sst_file_reader_test.cc Use the comparator from the sst file table properties in sst_dump_tool (#9491) 2022-02-08 12:15:35 -08:00
sst_file_writer.cc `compression_per_level` should be used for flush and changeable (#9658) 2022-03-07 18:06:19 -08:00
sst_file_writer_collectors.h Cleanup includes in dbformat.h (#8930) 2021-09-29 04:04:40 -07:00
table_builder.h Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
table_factory.cc Restore Regex support for ObjectLibrary::Register, rename new APIs to allow old one to be deprecated in the future (#9362) 2022-01-11 06:33:48 -08:00
table_properties.cc Fix a bug of TEST_SetRandomTableProperties due to non-zero padding between fields in TableProperties struct (#9812) 2022-04-07 12:25:43 -07:00
table_properties_internal.h Improve / clean up meta block code & integrity (#9163) 2021-11-18 11:43:44 -08:00
table_reader.h dedup ReadOptions in iterator hierarchy (#7210) 2020-08-03 15:23:04 -07:00
table_reader_bench.cc Fast path for detecting unchanged prefix_extractor (#9407) 2022-01-21 11:37:46 -08:00
table_reader_caller.h Fix and detect headers with missing dependencies (#8893) 2021-09-10 10:00:26 -07:00
table_test.cc Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
two_level_iterator.cc Clarify caching behavior for index and filter partitions (#9068) 2021-10-27 17:23:04 -07:00
two_level_iterator.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
unique_id.cc Experimental support for SST unique IDs (#8990) 2021-10-18 23:32:01 -07:00
unique_id_impl.h Experimental support for SST unique IDs (#8990) 2021-10-18 23:32:01 -07:00