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Hui Xiao 9a034801ce Group rocksdb.sst.read.micros stat by different user read IOActivity + misc (#11444) 
Summary:
**Context/Summary:**
- Similar to https://github.com/facebook/rocksdb/pull/11288 but for user read such as `Get(), MultiGet(), DBIterator::XXX(), Verify(File)Checksum()`.
   - For this, I refactored some user-facing `MultiGet` calls in `TransactionBase` and various types of `DB` so that it does not call a user-facing `Get()` but `GetImpl()` for passing the `ReadOptions::io_activity` check (see PR conversation)
   - New user read stats breakdown are guarded by `kExceptDetailedTimers` since measurement shows they have 4-5% regression to the upstream/main.

- Misc
   - More refactoring: with https://github.com/facebook/rocksdb/pull/11288, we complete passing `ReadOptions/IOOptions` to FS level. So we can now replace the previously [added](https://github.com/facebook/rocksdb/pull/9424) `rate_limiter_priority` parameter in `RandomAccessFileReader`'s `Read/MultiRead/Prefetch()` with `IOOptions::rate_limiter_priority`
   - Also, `ReadAsync()` call time is measured in `SST_READ_MICRO` now

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11444

Test Plan:
- CI fake db crash/stress test
- Microbenchmarking

**Build** `make clean && ROCKSDB_NO_FBCODE=1 DEBUG_LEVEL=0 make -jN db_basic_bench`
- google benchmark version: 604f6fd3f4
- db_basic_bench_base: upstream
- db_basic_bench_pr: db_basic_bench_base + this PR
- asyncread_db_basic_bench_base: upstream + [db basic bench patch for IteratorNext](https://github.com/facebook/rocksdb/compare/main...hx235:rocksdb:micro_bench_async_read)
- asyncread_db_basic_bench_pr: asyncread_db_basic_bench_base + this PR

**Test**

Get
```
TEST_TMPDIR=/dev/shm ./db_basic_bench_{null_stat|base|pr} --benchmark_filter=DBGet/comp_style:0/max_data:134217728/per_key_size:256/enable_statistics:1/negative_query:0/enable_filter:0/mmap:1/threads:1 --benchmark_repetitions=1000
```

Result
```
Coming soon
```

AsyncRead
```
TEST_TMPDIR=/dev/shm ./asyncread_db_basic_bench_{base|pr} --benchmark_filter=IteratorNext/comp_style:0/max_data:134217728/per_key_size:256/enable_statistics:1/async_io:1/include_detailed_timers:0 --benchmark_repetitions=1000 > syncread_db_basic_bench_{base|pr}.out
```

Result
```
Base:
1956,1956,1968,1977,1979,1986,1988,1988,1988,1990,1991,1991,1993,1993,1993,1993,1994,1996,1997,1997,1997,1998,1999,2001,2001,2002,2004,2007,2007,2008,

PR (2.3% regression, due to measuring `SST_READ_MICRO` that wasn't measured before):
1993,2014,2016,2022,2024,2027,2027,2028,2028,2030,2031,2031,2032,2032,2038,2039,2042,2044,2044,2047,2047,2047,2048,2049,2050,2052,2052,2052,2053,2053,
```

Reviewed By: ajkr

Differential Revision: D45918925

Pulled By: hx235

fbshipit-source-id: 58a54560d9ebeb3a59b6d807639692614dad058a
2023-08-08 17:26:50 -07:00
..
benchmark/src/main/java/org/rocksdb/benchmark jni: expose memtable_whole_key_filtering option (#9394) 2022-02-04 16:01:16 -08:00
crossbuild Support C++17 Docker build environments for RocksJava (#9500) 2022-02-17 12:48:38 -08:00
jmh Improve Java API get() performance by reducing copies (#10970) 2022-12-21 11:54:24 -08:00
rocksjni Group rocksdb.sst.read.micros stat by different user read IOActivity + misc (#11444) 2023-08-08 17:26:50 -07:00
samples/src/main/java Remove compressed block cache (#11117) 2023-01-24 17:09:19 -08:00
src Group rocksdb.sst.read.micros stat by different user read IOActivity + misc (#11444) 2023-08-08 17:26:50 -07:00
CMakeLists.txt Set -source 8 in CMAKE_JAVA_COMPILE_FLAGS (#11385) 2023-04-18 11:15:25 -07:00
GetBenchmarks.md Improve Java API get() performance by reducing copies (#10970) 2022-12-21 11:54:24 -08:00
HISTORY-JAVA.md Update JAVA-HISTORY.md for v3.13 2015-08-04 18:12:58 -07:00
jdb_bench.sh Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
Makefile Fix Java API ComparatorOptions use after delete error (#11176) 2023-02-17 13:03:41 -08:00
pom.xml.template Improve Java API get() performance by reducing copies (#10970) 2022-12-21 11:54:24 -08:00
RELEASE.md Add shared library for musl-libc (#3143) 2019-11-26 18:24:09 -08:00
understanding_options.md New-style blob option bindings, Java option getter and improve/fix option parsing (#8999) 2021-10-19 09:21:52 -07:00