[
https://issues.apache.org/jira/browse/LANG-1576?focusedWorklogId=463370&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-463370
]
ASF GitHub Bot logged work on LANG-1576:
----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Jul/20 17:00
Start Date: 26/Jul/20 17:00
Worklog Time Spent: 10m
Work Description: XenoAmess commented on pull request #565:
URL: https://github.com/apache/commons-lang/pull/565#issuecomment-664013772
jmh
```
[INFO] --- exec-maven-plugin:1.6.0:exec (benchmark) @ commons-lang3 ---
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.openjdk.jmh.util.Utils
(file:/C:/Users/xenoa/.m2/repository/org/openjdk/jmh/jmh-core/
1.21/jmh-core-1.21.jar) to field java.io.PrintStream.charOut
WARNING: Please consider reporting this to the maintainers of
org.openjdk.jmh.util.Utils
WARNING: Use --illegal-access=warn to enable warnings of further illegal
reflective access operations
WARNING: All illegal access operations will be denied in a future release
# JMH version: 1.21
# VM version: JDK 13.0.2, OpenJDK 64-Bit Server VM, 13.0.2+8
# VM invoker: C:\jdk-13.0.2+8\bin\java.exe
# VM options: <none>
# Warmup: 5 iterations, 10 s each
# Measurement: 5 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark: org.apache.commons.lang3.StringUtilsChompTest.test1New
# Run progress: 0.00% complete, ETA 00:33:20
# Fork: 1 of 5
# Warmup Iteration 1: 0.455 ns/op
# Warmup Iteration 2: 0.426 ns/op
# Warmup Iteration 3: 0.591 ns/op
# Warmup Iteration 4: 0.568 ns/op
# Warmup Iteration 5: 0.627 ns/op
Iteration 1: 0.629 ns/op
Iteration 2: 0.607 ns/op
Iteration 3: 0.574 ns/op
Iteration 4: 0.575 ns/op
Iteration 5: 0.562 ns/op
# Run progress: 5.00% complete, ETA 00:31:49
# Fork: 2 of 5
# Warmup Iteration 1: 0.413 ns/op
# Warmup Iteration 2: 0.417 ns/op
# Warmup Iteration 3: 0.563 ns/op
# Warmup Iteration 4: 0.552 ns/op
# Warmup Iteration 5: 0.565 ns/op
Iteration 1: 0.558 ns/op
Iteration 2: 0.562 ns/op
Iteration 3: 0.559 ns/op
Iteration 4: 0.550 ns/op
Iteration 5: 0.555 ns/op
# Run progress: 10.00% complete, ETA 00:30:09
# Fork: 3 of 5
# Warmup Iteration 1: 0.414 ns/op
# Warmup Iteration 2: 0.409 ns/op
# Warmup Iteration 3: 0.561 ns/op
# Warmup Iteration 4: 0.554 ns/op
# Warmup Iteration 5: 0.555 ns/op
Iteration 1: 0.553 ns/op
Iteration 2: 0.558 ns/op
Iteration 3: 0.557 ns/op
Iteration 4: 0.560 ns/op
Iteration 5: 0.556 ns/op
# Run progress: 15.00% complete, ETA 00:28:28
# Fork: 4 of 5
# Warmup Iteration 1: 0.415 ns/op
# Warmup Iteration 2: 0.418 ns/op
# Warmup Iteration 3: 0.574 ns/op
# Warmup Iteration 4: 0.581 ns/op
# Warmup Iteration 5: 0.581 ns/op
Iteration 1: 0.674 ns/op
Iteration 2: 0.791 ns/op
Iteration 3: 0.630 ns/op
Iteration 4: 0.630 ns/op
Iteration 5: 0.575 ns/op
# Run progress: 20.00% complete, ETA 00:26:47
# Fork: 5 of 5
# Warmup Iteration 1: 0.416 ns/op
# Warmup Iteration 2: 0.415 ns/op
# Warmup Iteration 3: 0.555 ns/op
# Warmup Iteration 4: 0.567 ns/op
# Warmup Iteration 5: 0.566 ns/op
Iteration 1: 0.557 ns/op
Iteration 2: 0.552 ns/op
Iteration 3: 0.557 ns/op
Iteration 4: 0.571 ns/op
Iteration 5: 0.559 ns/op
Result "org.apache.commons.lang3.StringUtilsChompTest.test1New":
0.584 ?99.9%) 0.040 ns/op [Average]
(min, avg, max) = (0.550, 0.584, 0.791), stdev = 0.054
CI (99.9%): [0.544, 0.625] (assumes normal distribution)
# JMH version: 1.21
# VM version: JDK 13.0.2, OpenJDK 64-Bit Server VM, 13.0.2+8
# VM invoker: C:\jdk-13.0.2+8\bin\java.exe
# VM options: <none>
# Warmup: 5 iterations, 10 s each
# Measurement: 5 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark: org.apache.commons.lang3.StringUtilsChompTest.test1Old
# Run progress: 25.00% complete, ETA 00:25:07
# Fork: 1 of 5
# Warmup Iteration 1: 0.416 ns/op
# Warmup Iteration 2: 0.422 ns/op
# Warmup Iteration 3: 0.559 ns/op
# Warmup Iteration 4: 0.557 ns/op
# Warmup Iteration 5: 0.560 ns/op
Iteration 1: 0.561 ns/op
Iteration 2: 0.568 ns/op
Iteration 3: 0.555 ns/op
Iteration 4: 0.564 ns/op
Iteration 5: 0.567 ns/op
# Run progress: 30.00% complete, ETA 00:23:26
# Fork: 2 of 5
# Warmup Iteration 1: 0.432 ns/op
# Warmup Iteration 2: 0.415 ns/op
# Warmup Iteration 3: 0.580 ns/op
# Warmup Iteration 4: 0.564 ns/op
# Warmup Iteration 5: 0.557 ns/op
Iteration 1: 0.554 ns/op
Iteration 2: 0.555 ns/op
Iteration 3: 0.561 ns/op
Iteration 4: 0.561 ns/op
Iteration 5: 0.609 ns/op
# Run progress: 35.00% complete, ETA 00:21:46
# Fork: 3 of 5
# Warmup Iteration 1: 0.452 ns/op
# Warmup Iteration 2: 0.439 ns/op
# Warmup Iteration 3: 0.559 ns/op
# Warmup Iteration 4: 0.553 ns/op
# Warmup Iteration 5: 0.565 ns/op
Iteration 1: 0.552 ns/op
Iteration 2: 0.553 ns/op
Iteration 3: 0.565 ns/op
Iteration 4: 0.559 ns/op
Iteration 5: 0.585 ns/op
# Run progress: 40.00% complete, ETA 00:20:05
# Fork: 4 of 5
# Warmup Iteration 1: 0.465 ns/op
# Warmup Iteration 2: 0.415 ns/op
# Warmup Iteration 3: 0.557 ns/op
# Warmup Iteration 4: 0.561 ns/op
# Warmup Iteration 5: 0.557 ns/op
Iteration 1: 0.570 ns/op
Iteration 2: 0.586 ns/op
Iteration 3: 0.579 ns/op
Iteration 4: 0.559 ns/op
Iteration 5: 0.568 ns/op
# Run progress: 45.00% complete, ETA 00:18:25
# Fork: 5 of 5
# Warmup Iteration 1: 0.429 ns/op
# Warmup Iteration 2: 0.416 ns/op
# Warmup Iteration 3: 0.570 ns/op
# Warmup Iteration 4: 0.574 ns/op
# Warmup Iteration 5: 0.583 ns/op
Iteration 1: 0.569 ns/op
Iteration 2: 0.557 ns/op
Iteration 3: 0.568 ns/op
Iteration 4: 0.565 ns/op
Iteration 5: 0.574 ns/op
Result "org.apache.commons.lang3.StringUtilsChompTest.test1Old":
0.566 ?99.9%) 0.010 ns/op [Average]
(min, avg, max) = (0.552, 0.566, 0.609), stdev = 0.013
CI (99.9%): [0.557, 0.576] (assumes normal distribution)
# JMH version: 1.21
# VM version: JDK 13.0.2, OpenJDK 64-Bit Server VM, 13.0.2+8
# VM invoker: C:\jdk-13.0.2+8\bin\java.exe
# VM options: <none>
# Warmup: 5 iterations, 10 s each
# Measurement: 5 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark: org.apache.commons.lang3.StringUtilsChompTest.test2New
# Run progress: 50.00% complete, ETA 00:16:44
# Fork: 1 of 5
# Warmup Iteration 1: 95680.898 ns/op
# Warmup Iteration 2: 90444.175 ns/op
# Warmup Iteration 3: 94788.132 ns/op
# Warmup Iteration 4: 95403.343 ns/op
# Warmup Iteration 5: 94287.177 ns/op
Iteration 1: 87182.379 ns/op
Iteration 2: 84504.871 ns/op
Iteration 3: 86379.487 ns/op
Iteration 4: 89007.855 ns/op
Iteration 5: 93364.669 ns/op
# Run progress: 55.00% complete, ETA 00:15:04
# Fork: 2 of 5
# Warmup Iteration 1: 95661.936 ns/op
# Warmup Iteration 2: 91977.819 ns/op
# Warmup Iteration 3: 88283.451 ns/op
# Warmup Iteration 4: 89021.565 ns/op
# Warmup Iteration 5: 89691.599 ns/op
Iteration 1: 91784.549 ns/op
Iteration 2: 90799.644 ns/op
Iteration 3: 89279.024 ns/op
Iteration 4: 88994.977 ns/op
Iteration 5: 88424.678 ns/op
# Run progress: 60.00% complete, ETA 00:13:23
# Fork: 3 of 5
# Warmup Iteration 1: 90910.147 ns/op
# Warmup Iteration 2: 93698.745 ns/op
# Warmup Iteration 3: 91782.114 ns/op
# Warmup Iteration 4: 89938.992 ns/op
# Warmup Iteration 5: 89732.219 ns/op
Iteration 1: 91407.693 ns/op
Iteration 2: 88116.955 ns/op
Iteration 3: 88866.737 ns/op
Iteration 4: 89332.096 ns/op
Iteration 5: 89412.458 ns/op
# Run progress: 65.00% complete, ETA 00:11:43
# Fork: 4 of 5
# Warmup Iteration 1: 101746.465 ns/op
# Warmup Iteration 2: 95473.860 ns/op
# Warmup Iteration 3: 89825.200 ns/op
# Warmup Iteration 4: 96220.566 ns/op
# Warmup Iteration 5: 92051.440 ns/op
Iteration 1: 96909.999 ns/op
Iteration 2: 96380.609 ns/op
Iteration 3: 100042.571 ns/op
Iteration 4: 97193.562 ns/op
Iteration 5: 94927.636 ns/op
# Run progress: 70.00% complete, ETA 00:10:02
# Fork: 5 of 5
# Warmup Iteration 1: 94768.098 ns/op
# Warmup Iteration 2: 88710.712 ns/op
# Warmup Iteration 3: 92609.575 ns/op
# Warmup Iteration 4: 91591.784 ns/op
# Warmup Iteration 5: 90414.524 ns/op
Iteration 1: 89574.697 ns/op
Iteration 2: 91357.226 ns/op
Iteration 3: 89932.893 ns/op
Iteration 4: 89500.817 ns/op
Iteration 5: 86699.252 ns/op
Result "org.apache.commons.lang3.StringUtilsChompTest.test2New":
90775.093 ?99.9%) 2829.707 ns/op [Average]
(min, avg, max) = (84504.871, 90775.093, 100042.571), stdev = 3777.578
CI (99.9%): [87945.386, 93604.800] (assumes normal distribution)
# JMH version: 1.21
# VM version: JDK 13.0.2, OpenJDK 64-Bit Server VM, 13.0.2+8
# VM invoker: C:\jdk-13.0.2+8\bin\java.exe
# VM options: <none>
# Warmup: 5 iterations, 10 s each
# Measurement: 5 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark: org.apache.commons.lang3.StringUtilsChompTest.test2Old
# Run progress: 75.00% complete, ETA 00:08:22
# Fork: 1 of 5
# Warmup Iteration 1: 91681.297 ns/op
# Warmup Iteration 2: 89610.996 ns/op
# Warmup Iteration 3: 90239.668 ns/op
# Warmup Iteration 4: 90743.008 ns/op
# Warmup Iteration 5: 90583.186 ns/op
Iteration 1: 90615.064 ns/op
Iteration 2: 95244.614 ns/op
Iteration 3: 91058.743 ns/op
Iteration 4: 98658.725 ns/op
Iteration 5: 91439.762 ns/op
# Run progress: 80.00% complete, ETA 00:06:41
# Fork: 2 of 5
# Warmup Iteration 1: 97044.749 ns/op
# Warmup Iteration 2: 91562.570 ns/op
# Warmup Iteration 3: 91697.237 ns/op
# Warmup Iteration 4: 90945.613 ns/op
# Warmup Iteration 5: 93285.585 ns/op
Iteration 1: 92028.821 ns/op
Iteration 2: 91660.172 ns/op
Iteration 3: 93375.415 ns/op
Iteration 4: 101690.972 ns/op
Iteration 5: 100558.989 ns/op
# Run progress: 85.00% complete, ETA 00:05:01
# Fork: 3 of 5
# Warmup Iteration 1: 104327.299 ns/op
# Warmup Iteration 2: 95678.312 ns/op
# Warmup Iteration 3: 92210.713 ns/op
# Warmup Iteration 4: 91596.527 ns/op
# Warmup Iteration 5: 94779.366 ns/op
Iteration 1: 100016.047 ns/op
Iteration 2: 91561.759 ns/op
Iteration 3: 91823.144 ns/op
Iteration 4: 89676.886 ns/op
Iteration 5: 93613.789 ns/op
# Run progress: 90.00% complete, ETA 00:03:21
# Fork: 4 of 5
# Warmup Iteration 1: 93297.253 ns/op
# Warmup Iteration 2: 93646.629 ns/op
# Warmup Iteration 3: 98469.356 ns/op
# Warmup Iteration 4: 84207.828 ns/op
# Warmup Iteration 5: 92455.514 ns/op
Iteration 1: 89759.291 ns/op
Iteration 2: 92110.185 ns/op
Iteration 3: 90429.158 ns/op
Iteration 4: 93414.921 ns/op
Iteration 5: 89412.610 ns/op
# Run progress: 95.00% complete, ETA 00:01:40
# Fork: 5 of 5
# Warmup Iteration 1: 101307.089 ns/op
# Warmup Iteration 2: 89975.708 ns/op
# Warmup Iteration 3: 92697.877 ns/op
# Warmup Iteration 4: 89897.830 ns/op
# Warmup Iteration 5: 95858.014 ns/op
Iteration 1: 89576.129 ns/op
Iteration 2: 89414.301 ns/op
Iteration 3: 93616.044 ns/op
Iteration 4: 89962.513 ns/op
Iteration 5: 89446.796 ns/op
Result "org.apache.commons.lang3.StringUtilsChompTest.test2Old":
92806.594 ?99.9%) 2758.319 ns/op [Average]
(min, avg, max) = (89412.610, 92806.594, 101690.972), stdev = 3682.277
CI (99.9%): [90048.275, 95564.913] (assumes normal distribution)
# Run complete. Total time: 00:33:30
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
StringUtilsChompTest.test1New avgt 25 0.584 ? 0.040 ns/op
StringUtilsChompTest.test1Old avgt 25 0.566 ? 0.010 ns/op
StringUtilsChompTest.test2New avgt 25 90775.093 ?2829.707 ns/op
StringUtilsChompTest.test2Old avgt 25 92806.594 ?2758.319 ns/op
```
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Issue Time Tracking
-------------------
Worklog Id: (was: 463370)
Time Spent: 20m (was: 10m)
> refine StringUtils.chomp
> ------------------------
>
> Key: LANG-1576
> URL: https://issues.apache.org/jira/browse/LANG-1576
> Project: Commons Lang
> Issue Type: Sub-task
> Reporter: Jin Xu
> Priority: Minor
> Time Spent: 20m
> Remaining Estimate: 0h
>
> [https://github.com/apache/commons-lang/pull/565]
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