dmsolr commented on issue #3064: To improve DataCarrier URL: https://github.com/apache/skywalking/issues/3064#issuecomment-511370620 The same codes run in openJDK1.6. This test is not on the same machine as above. So not using that to compare JDK version. 1. Environment: ``` # JMH 1.16 (released 978 days ago, please consider updating!) # VM version: JDK 1.6.0_38, VM 23.25-b01 # VM invoker: /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java # VM options: -Xmx512m -Xms512m # Warmup: 20 iterations, 1 s each, 5 calls per op # Measurement: 5 iterations, 1 s each # Timeout: 10 min per iteration # Threads: 1 thread, will synchronize iterations # Benchmark mode: Throughput, ops/time ``` 2. Result: ``` Benchmark Mode Cnt Score Error Units ListBenchmark.testArrayList200K thrpt 5 0.317 ± 0.057 ops/s ListBenchmark.testArrayList200K:·gc.alloc.rate thrpt 5 NaN MB/sec ListBenchmark.testArrayList200K:·gc.count thrpt 5 145.000 counts ListBenchmark.testArrayList200K:·gc.time thrpt 5 1981.000 ms ListBenchmark.testLinked200K thrpt 5 0.179 ± 0.005 ops/s ListBenchmark.testLinked200K:·gc.alloc.rate thrpt 5 NaN MB/sec ListBenchmark.testLinked200K:·gc.count thrpt 5 307.000 counts ListBenchmark.testLinked200K:·gc.time thrpt 5 1757.000 ms ListBenchmark.testReusedLinked200K thrpt 5 0.113 ± 0.002 ops/s ListBenchmark.testReusedLinked200K:·gc.alloc.rate thrpt 5 NaN MB/sec ListBenchmark.testReusedLinked200K:·gc.count thrpt 5 307.000 counts ListBenchmark.testReusedLinked200K:·gc.time thrpt 5 1724.000 ms ```
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