113 lines
2.4 KiB
Go
113 lines
2.4 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
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// See LICENSE for copying information.
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package main
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import (
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"image/color"
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"io/ioutil"
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"time"
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"github.com/loov/plot"
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)
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var palette = []color.Color{
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color.NRGBA{0, 200, 0, 255},
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color.NRGBA{0, 0, 200, 255},
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color.NRGBA{200, 0, 0, 255},
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}
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// Plot plots measurements into filename as an svg
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func Plot(filename string, measurements []Measurement) error {
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p := plot.New()
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p.X.Min = 0
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p.X.Max = 10
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p.X.MajorTicks = 10
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p.X.MinorTicks = 10
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speed := plot.NewAxisGroup()
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speed.Y.Min = 0
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speed.Y.Max = 1
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speed.X.Min = 0
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speed.X.Max = 30
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speed.X.MajorTicks = 10
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speed.X.MinorTicks = 10
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rows := plot.NewVStack()
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rows.Margin = plot.R(5, 5, 5, 5)
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p.Add(rows)
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for _, m := range measurements {
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row := plot.NewHFlex()
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rows.Add(row)
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row.Add(35, plot.NewTextbox(m.Size.String()))
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plots := plot.NewVStack()
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row.Add(0, plots)
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{ // time plotting
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group := []plot.Element{plot.NewGrid()}
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for i, result := range m.Results {
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time := plot.NewDensity("s", asSeconds(result.Durations))
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time.Stroke = palette[i%len(palette)]
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group = append(group, time)
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}
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group = append(group, plot.NewTickLabels())
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flexTime := plot.NewHFlex()
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plots.Add(flexTime)
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flexTime.Add(70, plot.NewTextbox("time (s)"))
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flexTime.AddGroup(0, group...)
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}
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{ // speed plotting
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group := []plot.Element{plot.NewGrid()}
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for i, result := range m.Results {
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if !result.WithSpeed {
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continue
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}
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speed := plot.NewDensity("MB/s", asSpeed(result.Durations, m.Size.Int64()))
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speed.Stroke = palette[i%len(palette)]
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}
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group = append(group, plot.NewTickLabels())
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flexSpeed := plot.NewHFlex()
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plots.Add(flexSpeed)
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speedGroup := plot.NewAxisGroup()
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speedGroup.X, speedGroup.Y = speed.X, speed.Y
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speedGroup.AddGroup(group...)
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flexSpeed.Add(70, plot.NewTextbox("speed (MB/s)"))
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flexSpeed.AddGroup(0, speedGroup)
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}
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}
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svgCanvas := plot.NewSVG(1500, 150*float64(len(measurements)))
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p.Draw(svgCanvas)
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return ioutil.WriteFile(filename, svgCanvas.Bytes(), 0755)
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}
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func asSeconds(durations []time.Duration) []float64 {
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xs := make([]float64, 0, len(durations))
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for _, dur := range durations {
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xs = append(xs, dur.Seconds())
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}
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return xs
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}
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func asSpeed(durations []time.Duration, size int64) []float64 {
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const MB = 1 << 20
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xs := make([]float64, 0, len(durations))
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for _, dur := range durations {
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xs = append(xs, (float64(size)/MB)/dur.Seconds())
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}
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return xs
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}
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