add resource consumption testing result

[PerforMance308]

Collected CPU usage metrics in two scenarios:

• Users' pod has CPU limit
• Users' pod doesn't have CPU limit

Collected Memory consumption

[kmesh-bot]

Welcome @PerforMance308! It looks like this is your first PR to kmesh-net/website 🎉

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[hzxuzhonghu]

This tests need some improvements

1. First lack of how the test is run, assume this is ads mode
2. The cpu usage monitor is very corse, should use pod monitor
3. About the memory test, I cannot get how you get the usage. Should supplement the procedure,

For the cpu test, should distinguish different conccurrent connections, qps

[PerforMance308]

This tests need some improvements

1. First lack of how the test is run, assume this is ads mode
2. The cpu usage monitor is very corse, should use pod monitor
3. About the memory test, I cannot get how you get the usage. Should supplement the procedure,

For the cpu test, should distinguish different conccurrent connections, qps

the purpose to conduct this test is to get the Kmesh maximum CPU and momery usage, and see if there are any limitations of that. So the connections, qps metrics are not considered in this test

[hzxuzhonghu]

The graph does not show up can you reference other article

This is the preview https://deploy-preview-67--kmesh-net.netlify.app/en/docs/performance/resource_consumption/

[hzxuzhonghu]

/lgtm

[kmesh-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hzxuzhonghu

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