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Type:
Enhancement
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Resolution: Fixed
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Priority:
P4
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Affects Version/s: openjdk8u472, 26
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Component/s: hotspot
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b25
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generic
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linux
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8378052 | 25.0.3 | Sendao Yan | P4 | Resolved | Fixed | b03 |
Kubernetes and other container runtimes changed the mapping function from --cpu-shares values to cgroups v2 cpu.weight value. Originally the function was (y=cpu.weight, x=cpu-shares):
y = (1 + ((x - 2) * 9999) / 262142)
This changed to:
y=10^(log2(x)^2/612 + 125/612 * log2(x) - 7.0/34.0)
See also:
https://github.com/containers/crun/issues/1721
https://github.com/containers/crun/commit/4998c928494c563f8d06494a1f2ed3443de29c2b
We need to adjust the container detection code to this new function.
y = (1 + ((x - 2) * 9999) / 262142)
This changed to:
y=10^(log2(x)^2/612 + 125/612 * log2(x) - 7.0/34.0)
See also:
https://github.com/containers/crun/issues/1721
https://github.com/containers/crun/commit/4998c928494c563f8d06494a1f2ed3443de29c2b
We need to adjust the container detection code to this new function.
- backported by
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JDK-8378052 [Linux] Update cpu shares to cpu.weight mapping function
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- Resolved
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- duplicates
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JDK-8371392 TestDockerCpuMetrics.java fails on some machines
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- Closed
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- relates to
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- Resolved
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- links to
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Commit(master)
openjdk/jdk25u-dev/f8030d11
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Commit(master)
openjdk/jdk/5d65c23c
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Review(master)
openjdk/jdk21u-dev/2512
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Review(master)
openjdk/jdk25u-dev/72
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Review(master)
openjdk/jdk/28157
(3 links to)