Save benchmark data in perfdash-friendly format.

hack/jenkins/benchmark-dockerized.sh

@@ -48,4 +48,6 @@ cd /go/src/k8s.io/kubernetes
 
 # Run the benchmark tests and pretty-print the results into a separate file.
 make test-integration WHAT="$*" KUBE_TEST_ARGS="-run='XXX' -bench=. -benchmem" \
-  | tee >(prettybench -no-passthrough > ${ARTIFACTS_DIR}/BenchmarkResults.txt)
+  | tee \
+   >(prettybench -no-passthrough > ${ARTIFACTS_DIR}/BenchmarkResults.txt) \
+   >(go run test/integration/benchmark/jsonify/main.go ${ARTIFACTS_DIR}/BenchmarkResults_benchmark_$(date -u +%Y-%m-%dT%H:%M:%SZ).json || cat > /dev/null)

test/integration/benchmark/jsonify/main.go

@@ -0,0 +1,77 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	benchparse "golang.org/x/tools/benchmark/parse"
+	"k8s.io/kubernetes/test/e2e/perftype"
+)
+
+func main() {
+	err := run()
+	if err != nil {
+		panic(err)
+	}
+}
+
+func run() error {
+	if len(os.Args) < 2 {
+		return fmt.Errorf("output filename is a required argument")
+	}
+	benchmarkSet, err := benchparse.ParseSet(os.Stdin)
+	if err != nil {
+		return err
+	}
+	data := perftype.PerfData{Version: "v1"}
+	for _, benchMarks := range benchmarkSet {
+		for _, benchMark := range benchMarks {
+			data.DataItems = appendIfMeasured(data.DataItems, benchMark, benchparse.NsPerOp, "time", "μs", benchMark.NsPerOp/1000.0)
+			data.DataItems = appendIfMeasured(data.DataItems, benchMark, benchparse.MBPerS, "throughput", "MBps", benchMark.MBPerS)
+			data.DataItems = appendIfMeasured(data.DataItems, benchMark, benchparse.AllocedBytesPerOp, "allocated", "bytes", float64(benchMark.AllocedBytesPerOp))
+			data.DataItems = appendIfMeasured(data.DataItems, benchMark, benchparse.AllocsPerOp, "allocations", "1", float64(benchMark.AllocsPerOp))
+			data.DataItems = appendIfMeasured(data.DataItems, benchMark, 0, "iterations", "1", float64(benchMark.N))
+		}
+	}
+	output := &bytes.Buffer{}
+	if err := json.NewEncoder(output).Encode(data); err != nil {
+		return err
+	}
+	formatted := &bytes.Buffer{}
+	if err := json.Indent(formatted, output.Bytes(), "", "  "); err != nil {
+		return err
+	}
+	return ioutil.WriteFile(os.Args[1], formatted.Bytes(), 0664)
+}
+
+func appendIfMeasured(items []perftype.DataItem, benchmark *benchparse.Benchmark, metricType int, metricName string, unit string, value float64) []perftype.DataItem {
+	if metricType != 0 && (benchmark.Measured&metricType) == 0 {
+		return items
+	}
+	return append(items, perftype.DataItem{
+		Unit: unit,
+		Labels: map[string]string{
+			"benchmark":  benchmark.Name,
+			"metricName": metricName},
+		Data: map[string]float64{
+			"value": value}})
+}