koordlet: node resource report and common QoS features support cgroups-v2

[saintube]

Signed-off-by: saintube saintube@foxmail.com

Ⅰ. Describe what this PR does

1. koordlet supports reporting node metrics correctly on cgroups-v2
2. fixes a bug in which the node cpu usage is too small
3. common QoS features support cgroups-v2, including CPUBurst, MemoryEvict, BatchResource, BVT

Ⅱ. Does this pull request fix one issue?

fixes #885.
part of #407.

Ⅲ. Describe how to verify it

1. deploy the koordlet on a node with cgroups-v2 enabled.
2. verify the koordlet container runs normally and the node metrics are collected correctly.

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Base: 66.46% // Head: 66.89% // Increases project coverage by +0.42% 🎉

Coverage data is based on head (7549c98) compared to base (08bb486).
Patch coverage: 50.72% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #879      +/-   ##
==========================================
+ Coverage   66.46%   66.89%   +0.42%     
==========================================
  Files         233      234       +1     
  Lines       26757    26879     +122     
==========================================
+ Hits        17785    17981     +196     
+ Misses       7712     7620      -92     
- Partials     1260     1278      +18     

Flag	Coverage Δ
unittests	66.89% <50.72%> (+0.42%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/koordlet/resourceexecutor/reader.go	70.96% <ø> (ø)
pkg/koordlet/runtimehooks/protocol/protocol.go	3.92% <0.00%> (-0.43%)	⬇️
pkg/koordlet/util/container.go	63.58% <ø> (-0.45%)	⬇️
pkg/koordlet/util/system/cgroup2.go	5.55% <0.00%> (-0.36%)	⬇️
pkg/koordlet/resourceexecutor/executor.go	37.19% <30.00%> (ø)
pkg/koordlet/util/system/cgroup.go	34.19% <35.71%> (+1.29%)	⬆️
pkg/koordlet/util/node.go	41.66% <40.00%> (-3.34%)	⬇️
pkg/koordlet/metricsadvisor/collector.go	44.53% <46.15%> (+33.07%)	⬆️
pkg/koordlet/resourceexecutor/updater.go	43.80% <50.00%> (ø)
pkg/koordlet/util/meminfo.go	82.14% <50.00%> (+0.21%)	⬆️
... and 23 more

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[saintube]

/milestone v1.1

[saintube]

/cc @zwzhang0107 @jasonliu747 @eahydra @hormes @stormgbs @FillZpp

[zwzhang0107]

/lgtm

[zwzhang0107]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: zwzhang0107

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• pkg/koordlet/OWNERS [zwzhang0107]

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