mxsm commented on PR #5805: URL: https://github.com/apache/rocketmq/pull/5805#issuecomment-1368918960
optimize before
```
# JMH version: 1.35
# VM version: JDK 1.8.0_202, Java HotSpot(TM) 64-Bit Server VM, 25.202-b08
# VM invoker: D:\Java\jre1.8\bin\java.exe
# VM options: <none>
# Blackhole mode: full + dont-inline hint (auto-detected, use
-Djmh.blackhole.autoDetect=false to disable)
# Warmup: 3 iterations, 2 s each
# Measurement: 3 iterations, 4 s each
# Timeout: 10 min per iteration
# Threads: 8 threads, will synchronize iterations
# Benchmark mode: Throughput, ops/time
# Benchmark: com.github.mxsm.TimeZoneBenchmark.after
# Run progress: 0.00% complete, ETA 00:00:18
# Fork: 1 of 1
# Warmup Iteration 1: 10005035.339 ops/s
# Warmup Iteration 2: 11866693.040 ops/s
# Warmup Iteration 3: 11873327.668 ops/s
Iteration 1: 11839057.036 ops/s
Iteration 2: 11982919.494 ops/s
Iteration 3: 11209842.440 ops/s
Result "com.github.mxsm.TimeZoneBenchmark.after":
11677272.990 ±(99.9%) 7500868.152 ops/s [Average]
(min, avg, max) = (11209842.440, 11677272.990, 11982919.494), stdev =
411147.894
CI (99.9%): [4176404.838, 19178141.142] (assumes normal distribution)
# Run complete. Total time: 00:00:19
REMEMBER: The numbers below are just data. To gain reusable insights, you
need to follow up on
why the numbers are the way they are. Use profilers (see -prof, -lprof),
design factorial
experiments, perform baseline and negative tests that provide experimental
control, make sure
the benchmarking environment is safe on JVM/OS/HW level, ask for reviews
from the domain experts.
Do not assume the numbers tell you what you want them to tell.
Benchmark Mode Cnt Score Error Units
TimeZoneBenchmark.after thrpt 3 11677272.990 ± 7500868.152 ops/s
```
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