8269851: OperatingSystemMXBean getProcessCpuLoad reports incorrect process cpu usage in containers

[xpbob]

…ocess cpu usage inside a container

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Issue

• JDK-8269851: OperatingSystemMXBean getProcessCpuLoad reports incorrect process cpu usage in containers

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[xpbob]

/issue add JDK-8269851
/label add containers

[openjdk]

@xpbob This issue is referenced in the PR title - it will now be updated.

[openjdk]

@xpbob The label containers is not a valid label. These labels are valid:

• serviceability
• hotspot
• sound
• hotspot-compiler
• ide-support
• kulla
• i18n
• shenandoah
• jdk
• javadoc
• security
• 2d
• swing
• hotspot-runtime
• jmx
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• build
• beans
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• net
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[mlbridge]

Webrevs

• 00: Full (8c39483f)

[xpbob]

getProcessCpuLoad return jvm cpu load。
8 core in machine, set 1 core for container。
Run same program, the getProcessCpuLoad return the same value。

expected
same program run in machine,value 0.12
run in 1 core container,value 0.99

[xpbob]

ProcessCpuLoad is associative container setting

[dholmes-ora]

@YaSuenag and @jerboaa could you please take a look at this one.

[dholmes-ora]

This has moved to #4702