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Akanksha Mahajan 28ea1fb44a Provide support for IOTracing for ReadAsync API (#9833) 
Summary:
Same as title

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9833

Test Plan:
Add unit test and manually check the output of tracing logs
For fixed readahead_size it logs as:
```
Access Time : 193352113447923     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 15075     , IO Status: OK, Length: 12288, Offset: 659456
Access Time : 193352113465232     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 14425     , IO Status: OK, Length: 12288, Offset: 671744
Access Time : 193352113481539     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 13062     , IO Status: OK, Length: 12288, Offset: 684032
Access Time : 193352113497692     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 13649     , IO Status: OK, Length: 12288, Offset: 696320
Access Time : 193352113520043     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 19384     , IO Status: OK, Length: 12288, Offset: 708608
Access Time : 193352113538401     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 15406     , IO Status: OK, Length: 12288, Offset: 720896
Access Time : 193352113554855     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 13670     , IO Status: OK, Length: 12288, Offset: 733184
Access Time : 193352113571624     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 13855     , IO Status: OK, Length: 12288, Offset: 745472
Access Time : 193352113587924     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 13953     , IO Status: OK, Length: 12288, Offset: 757760
Access Time : 193352113603285     , File Name: 000026.sst          , File Operation: Prefetch          , Latency: 59        , IO Status: Not implemented: Prefetch not supported, Length: 8868, Offset: 898349
```

For implicit readahead:
```
Access Time : 193351865156587     , File Name: 000026.sst          , File Operation: Prefetch          , Latency: 48        , IO Status: Not implemented: Prefetch not supported, Length: 12266, Offset: 391174
Access Time : 193351865160354     , File Name: 000026.sst          , File Operation: Prefetch          , Latency: 51        , IO Status: Not implemented: Prefetch not supported, Length: 12266, Offset: 395248
Access Time : 193351865164253     , File Name: 000026.sst          , File Operation: Prefetch          , Latency: 49        , IO Status: Not implemented: Prefetch not supported, Length: 12266, Offset: 399322
Access Time : 193351865165461     , File Name: 000026.sst          , File Operation: ReadAsync         , Latency: 222871    , IO Status: OK, Length: 135168, Offset: 401408
```

Reviewed By: anand1976

Differential Revision: D35601634

Pulled By: akankshamahajan15

fbshipit-source-id: 5a4f32a850af878efa0767bd5706380152a1f26e
 		2022-05-25 19:47:03 -07:00
..
delete_scheduler.cc Skip directory fsync for filesystem btrfs (#8903) 2021-11-03 12:21:27 -07:00
delete_scheduler.h
…
delete_scheduler_test.cc Remove own ToString() (#9955) 2022-05-06 13:03:58 -07:00
file_prefetch_buffer.cc Fix stress test failure "Corruption: checksum mismatch" or "Iterator Diverged" with async_io enabled (#10032) 2022-05-23 12:15:26 -07:00
file_prefetch_buffer.h Fix stress test failure "Corruption: checksum mismatch" or "Iterator Diverged" with async_io enabled (#10032) 2022-05-23 12:15:26 -07:00
file_util.cc Support read rate-limiting in SequentialFileReader (#9973) 2022-05-24 10:28:57 -07:00
file_util.h Set Read rate limiter priority dynamically and pass it to FS (#9996) 2022-05-18 19:41:44 -07:00
filename.cc fixing issue #8345 RocksDB does not work when using UNC network paths (#9384) 2022-03-30 15:55:31 -07:00
filename.h Add (Live)FileStorageInfo API (#8968) 2021-10-16 10:04:32 -07:00
line_file_reader.cc Support read rate-limiting in SequentialFileReader (#9973) 2022-05-24 10:28:57 -07:00
line_file_reader.h Support read rate-limiting in SequentialFileReader (#9973) 2022-05-24 10:28:57 -07:00
prefetch_test.cc Provide support for IOTracing for ReadAsync API (#9833) 2022-05-25 19:47:03 -07:00
random_access_file_reader.cc Provide support for IOTracing for ReadAsync API (#9833) 2022-05-25 19:47:03 -07:00
random_access_file_reader.h Set Read rate limiter priority dynamically and pass it to FS (#9996) 2022-05-18 19:41:44 -07:00
random_access_file_reader_test.cc Add rate limiter priority to ReadOptions (#9424) 2022-02-16 23:18:14 -08:00
read_write_util.cc Move old files to warm tier in FIFO compactions (#8310) 2021-08-09 12:51:14 -07:00
read_write_util.h
…
readahead_file_info.h Reuse internal auto readhead_size at each Level (expect L0) for Iterations (#9056) 2021-11-10 16:20:04 -08:00
readahead_raf.cc
…
readahead_raf.h
…
sequence_file_reader.cc Support read rate-limiting in SequentialFileReader (#9973) 2022-05-24 10:28:57 -07:00
sequence_file_reader.h Support read rate-limiting in SequentialFileReader (#9973) 2022-05-24 10:28:57 -07:00
sst_file_manager_impl.cc Fix race condition in SstFileManagerImpl error recovery code (#9435) 2022-01-25 23:22:58 -08:00
sst_file_manager_impl.h Fix typo about file/sst_file_manager_impl.h (#9799) 2022-04-04 09:57:33 -07:00
writable_file_writer.cc Address comments for PR #9988 and #9996 (#10020) 2022-05-19 15:23:53 -07:00
writable_file_writer.h Address comments for PR #9988 and #9996 (#10020) 2022-05-19 15:23:53 -07:00