koord-scheduler: LoadAware scheduling support percentile usage

[eahydra]

Signed-off-by: Joseph joseph.t.lee@outlook.com

Ⅰ. Describe what this PR does

• The LoadAware scheduling plugin support filter/score with aggregated usages such as P99/P95.
• Not enabled by default. Users can set AggregatedUsages via the annotation of Node or args of plugin.
• If the koordlet have not report the aggregated usages, koord-scheduler will use the estimated result as current usage to balance.

Ⅱ. Does this pull request fix one issue?

fix #856

Ⅲ. Describe how to verify it

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

[eahydra]

/milestone v1.1

[codecov]

Codecov Report

Base: 66.90% // Head: 66.89% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (34cf375) compared to base (c43b4db).
Patch coverage: 68.08% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #882      +/-   ##
==========================================
- Coverage   66.90%   66.89%   -0.02%     
==========================================
  Files         234      234              
  Lines       26874    26973      +99     
==========================================
+ Hits        17981    18044      +63     
- Misses       7616     7651      +35     
- Partials     1277     1278       +1     

Flag	Coverage Δ
unittests	66.89% <68.08%> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
pkg/util/pod_resources_utils.go	52.87% <0.00%> (-5.36%)	⬇️
pkg/scheduler/plugins/loadaware/helper.go	66.96% <57.74%> (-19.32%)	⬇️
pkg/scheduler/plugins/loadaware/load_aware.go	77.09% <88.70%> (+3.39%)	⬆️
pkg/koordlet/runtimehooks/reconciler/reconciler.go	65.88% <0.00%> (-1.18%)	⬇️
pkg/util/httputil/reverseproxy.go	85.10% <0.00%> (+0.79%)	⬆️

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[saintube]

/lgtm

[eahydra]

optimize filter implement. cc @saintube

[ZiMengSheng]

/lgtm

[buptcozy]

/lgtm

[buptcozy]

/approve

[FillZpp]

/lgtm

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: buptcozy, FillZpp, ZiMengSheng

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Needs approval from an approver in each of these files:

• apis/OWNERS [FillZpp]
• pkg/scheduler/OWNERS [buptcozy]
• pkg/util/OWNERS [FillZpp]

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