The test failed on branch=release-20.1, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/kv/gracefuldraining/nodes=3/run_1
	kv.go:453,test_runner.go:754: QPS of 416.40 at time 2020-09-01 06:08:00 +0000 UTC is below minimum allowable QPS of 900.00; entire timeseries: [{TimestampNanos:1598940470000000000 Value:0.9} {TimestampNanos:1598940480000000000 Value:416.40000000000003} {TimestampNanos:1598940490000000000 Value:999.8} {TimestampNanos:1598940500000000000 Value:998.9000000000001} {TimestampNanos:1598940510000000000 Value:1000.3000000000001} {TimestampNanos:1598940520000000000 Value:1000.1000000000001} {TimestampNanos:1598940530000000000 Value:999.7} {TimestampNanos:1598940540000000000 Value:998.4000000000001} {TimestampNanos:1598940550000000000 Value:999.4000000000001} {TimestampNanos:1598940560000000000 Value:998.8} {TimestampNanos:1598940570000000000 Value:998.7} {TimestampNanos:1598940580000000000 Value:998.1} {TimestampNanos:1598940590000000000 Value:998.5} {TimestampNanos:1598940600000000000 Value:997.6} {TimestampNanos:1598940610000000000 Value:999.3000000000001} {TimestampNanos:1598940620000000000 Value:999.9000000000001} {TimestampNanos:1598940630000000000 Value:1000.2} {TimestampNanos:1598940640000000000 Value:1000} {TimestampNanos:1598940650000000000 Value:999.9000000000001} {TimestampNanos:1598940660000000000 Value:1000.3000000000001} {TimestampNanos:1598940670000000000 Value:999.6} {TimestampNanos:1598940680000000000 Value:999.5} {TimestampNanos:1598940690000000000 Value:997.9000000000001} {TimestampNanos:1598940700000000000 Value:999.6000000000001} {TimestampNanos:1598940710000000000 Value:999.5} {TimestampNanos:1598940720000000000 Value:999.7} {TimestampNanos:1598940730000000000 Value:998.8000000000001}]