pacoxu: default memoryThrottlingFactor to 0.9 and optimize the memory.high formulas

JobBuild
81c5a122
03-03 03:26		 115371
03-03 03:12		 76da4319
03-03 03:11
pull-kubernetes-conformance-kind-ga-only-parallel 1633633313765724160 1631496039926075392 1631492327191089152
pull-kubernetes-dependencies 1633633313472122880 1631496037904420864 1631492326931042304
pull-kubernetes-e2e-gce 1633633313522454528 1631496037946363904 1631492326981373952
pull-kubernetes-e2e-kind 1633633313639895040 1631496038244159488 1631492327082037248
pull-kubernetes-e2e-kind-ipv6 1633633313698615296 1631496039091408896 1631492327140757504
pull-kubernetes-integration 1633633313576980480 1631496037996695552 1631492327027511296
pull-kubernetes-node-e2e-containerd 1633633313862193152 1631496047207387136 1631492327295946752
pull-kubernetes-typecheck 1633633313937690624 1631496043847749632 1631492327342084096
pull-kubernetes-unit 1633633313807667200 1631514759754944512 1631506056012107776 1631496040878182400 1631492327245615104
pull-kubernetes-verify 1633633314290012160 1631496045076680704 1631492327774097408
pull-kubernetes-verify-govet-levee 1633633314025771008 1631496044694999040 1631492327388221440