minikube/hack/benchmark/time-to-k8s/chart.go

294 lines
6.8 KiB
Go

/*
Copyright 2021 The Kubernetes Authors All rights reserved.
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/csv"
"fmt"
"io"
"os"
"strconv"
"github.com/olekukonko/tablewriter"
"gonum.org/v1/plot"
"gonum.org/v1/plot/plotter"
"gonum.org/v1/plot/plotutil"
"gonum.org/v1/plot/vg"
)
type run struct {
cmd float64
api float64
k8s float64
dnsSvc float64
app float64
dnsAns float64
}
type runs struct {
version string
runs []run
cpus []cpu
}
type cpu struct {
cpuPct float64 // percentage
cpuTime float64 // second
}
func readInCSV(csvPath string, apps map[string]runs) error {
f, err := os.Open(csvPath)
if err != nil {
return err
}
r := csv.NewReader(f)
for {
d, err := r.Read()
if err == io.EOF {
break
}
if err != nil {
return err
}
// skip the first line of the CSV file
if d[0] == "name" {
continue
}
values := []float64{}
// 8-16 contain the run results
for i := 8; i <= 16; i++ {
v, err := strconv.ParseFloat(d[i], 64)
if err != nil {
return err
}
values = append(values, v)
}
newRun := run{values[0], values[1], values[2], values[3], values[4], values[5]}
newCPU := cpu{values[6], values[8]}
// get the app from the map and add the new run to it
name := d[0]
k, ok := apps[name]
if !ok {
k = runs{version: d[5]}
}
k.runs = append(k.runs, newRun)
k.cpus = append(k.cpus, newCPU)
apps[name] = k
}
return nil
}
func values(apps map[string]runs) ([]plotter.Values, []plotter.Values, []plotter.Values, []float64, []string) {
var cmdValues, apiValues, k8sValues, dnsSvcValues, appValues, dnsAnsValues plotter.Values
var cpuPctValues, cpuTimeValues plotter.Values
var cpuMinikube, cpuKind, cpuK3d plotter.Values
names := []string{}
totals := []float64{}
// for each app, calculate the average for all the runs, and append them to the charting values
for _, name := range []string{"minikube", "kind", "k3d"} {
app := apps[name]
var cmd, api, k8s, dnsSvc, appRun, dnsAns float64
var cpuPct, cpuTime float64
names = append(names, app.version)
for _, l := range app.runs {
cmd += l.cmd
api += l.api
k8s += l.k8s
dnsSvc += l.dnsSvc
appRun += l.app
dnsAns += l.dnsAns
}
for _, l := range app.cpus {
cpuPct += l.cpuPct
cpuTime += l.cpuTime
}
c := float64(len(app.runs))
cmdAvg := cmd / c
apiAvg := api / c
k8sAvg := k8s / c
dnsSvcAvg := dnsSvc / c
appAvg := appRun / c
dnsAnsAvg := dnsAns / c
cpuPctAvg := cpuPct / c
cpuTimeAvg := cpuTime / c
cmdValues = append(cmdValues, cmdAvg)
apiValues = append(apiValues, apiAvg)
k8sValues = append(k8sValues, k8sAvg)
dnsSvcValues = append(dnsSvcValues, dnsSvcAvg)
appValues = append(appValues, appAvg)
dnsAnsValues = append(dnsAnsValues, dnsAnsAvg)
total := cmdAvg + apiAvg + k8sAvg + dnsSvcAvg + appAvg + dnsAnsAvg
totals = append(totals, total)
cpuPctValues = append(cpuPctValues, cpuPctAvg)
cpuTimeValues = append(cpuTimeValues, cpuTimeAvg)
cpuSummary := []float64{cpuPctAvg, cpuTimeAvg}
switch name {
case "minikube":
cpuMinikube = cpuSummary
case "kind":
cpuKind = cpuSummary
case "k3d":
cpuK3d = cpuSummary
}
}
runningTime := []plotter.Values{cmdValues, apiValues, k8sValues, dnsSvcValues, appValues, dnsAnsValues}
// for markdown table, row is either cpu utilization or cpu time, col is process name
cpu := []plotter.Values{cpuPctValues, cpuTimeValues}
// row is process name, col is either cpu utilization, or cpu time
cpureverse := []plotter.Values{cpuMinikube, cpuKind, cpuK3d}
return runningTime, cpu, cpureverse, totals, names
}
func outputMarkdownTable(categories []plotter.Values, totals []float64, names []string) {
headers := append([]string{""}, names...)
c := [][]string{}
fields := []string{"Command Exec", "API Server Answering", "Kubernetes SVC", "DNS SVC", "App Running", "DNS Answering"}
for i, values := range categories {
row := []string{fields[i]}
for _, value := range values {
row = append(row, fmt.Sprintf("%.3f", value))
}
c = append(c, row)
}
totalStrings := []string{"Total"}
for _, t := range totals {
totalStrings = append(totalStrings, fmt.Sprintf("%.3f", t))
}
c = append(c, totalStrings)
b := new(bytes.Buffer)
t := tablewriter.NewWriter(b)
t.SetAutoWrapText(false)
t.SetHeader(headers)
t.SetAutoFormatHeaders(false)
t.SetBorders(tablewriter.Border{Left: true, Top: false, Right: true, Bottom: false})
t.SetCenterSeparator("|")
t.AppendBulk(c)
t.Render()
data.TimeMarkdown = b.String()
}
func createChart(chartPath string, values []plotter.Values, totals []float64, names []string) error {
p := plot.New()
p.Title.Text = "Time to go from 0 to successful Kubernetes deployment"
p.Y.Label.Text = "time (seconds)"
bars := []*plotter.BarChart{}
// create bars for all the values
for i, v := range values {
bar, err := createBars(v, i)
if err != nil {
return err
}
bars = append(bars, bar)
p.Add(bar)
}
// stack the bars
bars[0].StackOn(bars[1])
bars[1].StackOn(bars[2])
bars[2].StackOn(bars[3])
bars[3].StackOn(bars[4])
bars[4].StackOn(bars[5])
// max Y value of the chart
p.Y.Max = 80
// add all the bars to the legend
legends := []string{"Command Exec", "API Server Answering", "Kubernetes SVC", "DNS SVC", "App Running", "DNS Answering"}
for i, bar := range bars {
p.Legend.Add(legends[i], bar)
}
p.Legend.Top = true
// add app name to the bars
p.NominalX(names...)
// create total time labels
var labels []string
for _, total := range totals {
label := fmt.Sprintf("%.2f", total)
labels = append(labels, label)
}
// create label positions
var labelPositions []plotter.XY
for i := range totals {
x := float64(i) - 0.03
y := totals[i] + 0.3
labelPosition := plotter.XY{X: x, Y: y}
labelPositions = append(labelPositions, labelPosition)
}
l, err := plotter.NewLabels(plotter.XYLabels{
XYs: labelPositions,
Labels: labels,
},
)
if err != nil {
return err
}
p.Add(l)
if err := p.Save(12*vg.Inch, 8*vg.Inch, chartPath); err != nil {
return err
}
data.TimeChart = chartPath
return nil
}
func createBars(values plotter.Values, index int) (*plotter.BarChart, error) {
bars, err := plotter.NewBarChart(values, vg.Points(20))
if err != nil {
return nil, err
}
bars.LineStyle.Width = vg.Length(0)
bars.Width = vg.Length(80)
bars.Color = plotutil.Color(index)
return bars, nil
}