rocksdb

History

Akanksha Mahajan c8bae6e29c 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 20:31:45 -07:00

delete_scheduler_test.cc

Remove own ToString() (#9955 )

2022-05-06 13:03:58 -07:00

delete_scheduler.cc

Skip directory fsync for filesystem btrfs (#8903 )

2021-11-03 12:21:27 -07:00

delete_scheduler.h

Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033 )

2021-03-15 04:34:11 -07:00

file_prefetch_buffer.cc

Fix stress test failure "Corruption: checksum mismatch" or "Iterator Diverged" with async_io enabled (#10032 )