add GOMAXPROCS limit

[fanhaouu]

This PR aims to address the following issue：

The default value of GOMAXPROCS is the number of CPU cores of the machine. After GOMAXPROCS is higher than the number of truly usable cores, the Go scheduler will keep switching OS threads, which will affect the performance of descheduler program.

At present, descheduler has some goroutine, but the number is not very large, so gomaxproc can be added or not, but the current go runtime cannot recognize the container environment, I think it is better to add it. For example, jvm runtime has long supported container environments.

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @fanhaouu. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[a7i]

/ok-to-test

[a7i]

/retest-required

[fanhaouu]

/retest

[fanhaouu]

[fanhaouu]

/retest

[k8s-ci-robot]

PR needs rebase.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[k8s-ci-robot]

@fanhaouu: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-descheduler-test-e2e-k8s-master-1-31	d99e25a	link	true	/test pull-descheduler-test-e2e-k8s-master-1-31

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.