CPU and memory usage in Docker Swarm Status page is always 100% free

[eliasbalasis]

Jenkins and plugins versions report

Environment

Jenkins: 2.460
OS: Linux - 4.18.0-513.24.1.el8_9.x86_64
Java: 17.0.11 - Red Hat, Inc. (OpenJDK 64-Bit Server VM)

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active-directory:2.35
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ant:497.v94e7d9fffa_b_9
antisamy-markup-formatter:162.v0e6ec0fcfcf6
apache-httpcomponents-client-4-api:4.5.14-208.v438351942757
apache-httpcomponents-client-5-api:5.3.1-1.0
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asm-api:9.7-33.v4d23ef79fcc8
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azure-keyvault:251.vcfe31c013dc7
azure-sdk:157.v855da_0b_eb_dc2
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blueocean-autofavorite:1.2.5
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blueocean-pipeline-editor:1.27.12
blueocean-pipeline-scm-api:1.27.12
blueocean-rest:1.27.12
blueocean-rest-impl:1.27.12
blueocean-web:1.27.12
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gravatar:2.2
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hashicorp-vault-plugin:368.v48134f694db_f
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mailer:472.vf7c289a_4b_420
mapdb-api:1.0.9-40.v58107308b_7a_7
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ws-cleanup:0.46

What Operating System are you using (both controller, and any agents involved in the problem)?

OEL8

Reproduction steps

Install and configure Docker Swarm plugin, then access the Docker Swarm Status page.
The CPU and Memory usage is always 100% free even when jobs are running on the Docker Swarm nodes.

Expected Results

CPU and memory usage should not be always 100% free

Actual Results

CPU and memory usage in Docker Swarm Status page is always 100% free

Anything else?

No response

Are you interested in contributing a fix?

No response