frankvicky commented on PR #18917:
URL: https://github.com/apache/kafka/pull/18917#issuecomment-2688238076
```
BUILD SUCCESSFUL in 10s
94 actionable tasks: 3 executed, 91 up-to-date
gradle build done
running JMH with args: TopicIdPartitionBenchmark
# JMH version: 1.37
# VM version: JDK 21.0.6, OpenJDK 64-Bit Server VM, 21.0.6+7-LTS
# VM invoker: /home/frankvicky/.sdkman/candidates/java/21.0.6-zulu/bin/java
# VM options: <none>
# Blackhole mode: compiler (auto-detected, use
-Djmh.blackhole.autoDetect=false to disable)
# Warmup: 5 iterations, 10 s each
# Measurement: 10 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark:
org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.oldImplEqualsBenchmark
# Run progress: 0.00% complete, ETA 00:10:00
# Fork: 1 of 1
# Warmup Iteration 1: 0.721 ns/op
# Warmup Iteration 2: 0.724 ns/op
# Warmup Iteration 3: 0.722 ns/op
# Warmup Iteration 4: 0.720 ns/op
# Warmup Iteration 5: 0.710 ns/op
Iteration 1: 0.724 ns/op
Iteration 2: 0.719 ns/op
Iteration 3: 0.709 ns/op
Iteration 4: 0.680 ns/op
Iteration 5: 0.722 ns/op
Iteration 6: 0.722 ns/op
Iteration 7: 0.700 ns/op
Iteration 8: 0.679 ns/op
Iteration 9: 0.679 ns/op
Iteration 10: 0.677 ns/op
Result
"org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.oldImplEqualsBenchmark":
0.701 ±(99.9%) 0.031 ns/op [Average]
(min, avg, max) = (0.677, 0.701, 0.724), stdev = 0.021
CI (99.9%): [0.670, 0.732] (assumes normal distribution)
# JMH version: 1.37
# VM version: JDK 21.0.6, OpenJDK 64-Bit Server VM, 21.0.6+7-LTS
# VM invoker: /home/frankvicky/.sdkman/candidates/java/21.0.6-zulu/bin/java
# VM options: <none>
# Blackhole mode: compiler (auto-detected, use
-Djmh.blackhole.autoDetect=false to disable)
# Warmup: 5 iterations, 10 s each
# Measurement: 10 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark:
org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.oldImplHashCodeBenchmark
# Run progress: 25.00% complete, ETA 00:07:30
# Fork: 1 of 1
# Warmup Iteration 1: 0.731 ns/op
# Warmup Iteration 2: 4.508 ns/op
# Warmup Iteration 3: 4.420 ns/op
# Warmup Iteration 4: 4.451 ns/op
# Warmup Iteration 5: 4.697 ns/op
Iteration 1: 4.688 ns/op
Iteration 2: 4.655 ns/op
Iteration 3: 4.437 ns/op
Iteration 4: 4.627 ns/op
Iteration 5: 4.565 ns/op
Iteration 6: 4.593 ns/op
Iteration 7: 4.582 ns/op
Iteration 8: 4.699 ns/op
Iteration 9: 4.535 ns/op
Iteration 10: 4.421 ns/op
Result
"org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.oldImplHashCodeBenchmark":
4.580 ±(99.9%) 0.144 ns/op [Average]
(min, avg, max) = (4.421, 4.580, 4.699), stdev = 0.095
CI (99.9%): [4.436, 4.724] (assumes normal distribution)
# JMH version: 1.37
# VM version: JDK 21.0.6, OpenJDK 64-Bit Server VM, 21.0.6+7-LTS
# VM invoker: /home/frankvicky/.sdkman/candidates/java/21.0.6-zulu/bin/java
# VM options: <none>
# Blackhole mode: compiler (auto-detected, use
-Djmh.blackhole.autoDetect=false to disable)
# Warmup: 5 iterations, 10 s each
# Measurement: 10 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark:
org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.recordEqualsBenchmark
# Run progress: 50.00% complete, ETA 00:05:00
# Fork: 1 of 1
# Warmup Iteration 1: 0.686 ns/op
# Warmup Iteration 2: 0.632 ns/op
# Warmup Iteration 3: 0.485 ns/op
# Warmup Iteration 4: 0.473 ns/op
# Warmup Iteration 5: 0.466 ns/op
Iteration 1: 0.469 ns/op
Iteration 2: 0.455 ns/op
Iteration 3: 0.454 ns/op
Iteration 4: 0.452 ns/op
Iteration 5: 0.453 ns/op
Iteration 6: 0.483 ns/op
Iteration 7: 0.482 ns/op
Iteration 8: 0.481 ns/op
Iteration 9: 0.481 ns/op
Iteration 10: 0.484 ns/op
Result
"org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.recordEqualsBenchmark":
0.469 ±(99.9%) 0.022 ns/op [Average]
(min, avg, max) = (0.452, 0.469, 0.484), stdev = 0.014
CI (99.9%): [0.448, 0.491] (assumes normal distribution)
# JMH version: 1.37
# VM version: JDK 21.0.6, OpenJDK 64-Bit Server VM, 21.0.6+7-LTS
# VM invoker: /home/frankvicky/.sdkman/candidates/java/21.0.6-zulu/bin/java
# VM options: <none>
# Blackhole mode: compiler (auto-detected, use
-Djmh.blackhole.autoDetect=false to disable)
# Warmup: 5 iterations, 10 s each
# Measurement: 10 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark:
org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.recordHashCodeBenchmark
# Run progress: 75.00% complete, ETA 00:02:30
# Fork: 1 of 1
# Warmup Iteration 1: 0.513 ns/op
# Warmup Iteration 2: 0.543 ns/op
# Warmup Iteration 3: 0.753 ns/op
# Warmup Iteration 4: 0.750 ns/op
# Warmup Iteration 5: 0.705 ns/op
Iteration 1: 0.729 ns/op
Iteration 2: 0.753 ns/op
Iteration 3: 0.754 ns/op
Iteration 4: 0.754 ns/op
Iteration 5: 0.753 ns/op
Iteration 6: 0.754 ns/op
Iteration 7: 0.754 ns/op
Iteration 8: 0.754 ns/op
Iteration 9: 0.754 ns/op
Iteration 10: 0.754 ns/op
Result
"org.apache.kafka.jmh.common.TopicIdPartitionBenchmark.recordHashCodeBenchmark":
0.751 ±(99.9%) 0.012 ns/op [Average]
(min, avg, max) = (0.729, 0.751, 0.754), stdev = 0.008
CI (99.9%): [0.739, 0.763] (assumes normal distribution)
# Run complete. Total time: 00:10:00
Benchmark Mode Cnt Score Error
Units
TopicIdPartitionBenchmark.oldImplEqualsBenchmark avgt 10 0.701 ± 0.031
ns/op
TopicIdPartitionBenchmark.oldImplHashCodeBenchmark avgt 10 4.580 ± 0.144
ns/op
TopicIdPartitionBenchmark.recordEqualsBenchmark avgt 10 0.469 ± 0.022
ns/op
TopicIdPartitionBenchmark.recordHashCodeBenchmark avgt 10 0.751 ± 0.012
ns/op
JMH benchmarks done
```
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