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1246898315
Using unique strings instead of normal strings speeds up allocation with
structured parameters because maps that use those strings as key no longer need
to build hashes of the string content. However, care must be taken to call
unique.Make as little as possible because it is costly.
Pre-allocating the map of allocated devices reduces the need to grow the map
when adding devices.
goos: linux
goarch: amd64
pkg: k8s.io/kubernetes/test/integration/scheduler_perf
cpu: Intel(R) Core(TM) i9-7980XE CPU @ 2.60GHz
│ before │ after │
│ SchedulingThroughput/Average │ SchedulingThroughput/Average vs base │
PerfScheduling/SchedulingWithResourceClaimTemplateStructured/5000pods_500nodes-36 18.06 ± 2% 33.30 ± 2% +84.31% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/empty_100nodes-36 104.7 ± 2% 105.3 ± 2% ~ (p=0.818 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/empty_500nodes-36 96.62 ± 1% 100.75 ± 1% +4.28% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/half_100nodes-36 83.00 ± 2% 90.96 ± 2% +9.59% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/half_500nodes-36 32.45 ± 7% 49.84 ± 4% +53.60% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/full_100nodes-36 95.22 ± 7% 103.80 ± 1% +9.00% (p=0.002 n=6)
PerfScheduling/SteadyStateClusterResourceClaimTemplateStructured/full_500nodes-36 9.111 ± 10% 27.215 ± 7% +198.69% (p=0.002 n=6)
geomean 45.86 64.26 +40.12%