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// Copyright (C) MongoDB, Inc. 2017-present.
//
// 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
package benchmark
import (
"fmt"
"time"
"github.com/montanaflynn/stats"
)
type BenchResult struct {
Name string
Trials int
Duration time.Duration
Raw []Result
DataSize int
Operations int
hasErrors *bool
}
type Metric struct {
Name string `json:"name"`
Value interface{} `json:"value"`
}
func (r *BenchResult) EvergreenPerfFormat() ([]interface{}, error) {
timings := r.timings()
median, err := stats.Median(timings)
if err != nil {
return nil, err
}
min, err := stats.Min(timings)
if err != nil {
return nil, err
}
max, err := stats.Max(timings)
if err != nil {
return nil, err
}
out := []interface{}{
map[string]interface{}{
"info": map[string]interface{}{
"test_name": r.Name + "-throughput",
"args": map[string]interface{}{
"threads": 1,
},
},
"metrics": []Metric{
{Name: "seconds", Value: r.Duration.Round(time.Millisecond).Seconds()},
{Name: "ops_per_second", Value: r.getThroughput(median)},
{Name: "ops_per_second_min", Value: r.getThroughput(min)},
{Name: "ops_per_second_max", Value: r.getThroughput(max)},
},
},
}
if r.DataSize > 0 {
out = append(out, interface{}(map[string]interface{}{
"info": map[string]interface{}{
"test_name": r.Name + "-MB-adjusted",
"args": map[string]interface{}{
"threads": 1,
},
},
"metrics": []Metric{
{Name: "seconds", Value: r.Duration.Round(time.Millisecond).Seconds()},
{Name: "ops_per_second", Value: r.adjustResults(median)},
{Name: "ops_per_second_min", Value: r.adjustResults(min)},
{Name: "ops_per_second_max", Value: r.adjustResults(max)},
},
}))
}
return out, nil
}
func (r *BenchResult) timings() []float64 {
out := []float64{}
for _, r := range r.Raw {
out = append(out, r.Duration.Seconds())
}
return out
}
func (r *BenchResult) totalDuration() time.Duration {
var out time.Duration
for _, trial := range r.Raw {
out += trial.Duration
}
return out
}
func (r *BenchResult) adjustResults(data float64) float64 { return float64(r.DataSize) / data }
func (r *BenchResult) getThroughput(data float64) float64 { return float64(r.Operations) / data }
func (r *BenchResult) roundedRuntime() time.Duration { return roundDurationMS(r.Duration) }
func (r *BenchResult) String() string {
return fmt.Sprintf("name=%s, trials=%d, secs=%s", r.Name, r.Trials, r.Duration)
}
func (r *BenchResult) HasErrors() bool {
if r.hasErrors == nil {
var val bool
for _, res := range r.Raw {
if res.Error != nil {
val = true
break
}
}
r.hasErrors = &val
}
return *r.hasErrors
}
func (r *BenchResult) errReport() []string {
errs := []string{}
for _, res := range r.Raw {
if res.Error != nil {
errs = append(errs, res.Error.Error())
}
}
return errs
}
type Result struct {
Duration time.Duration
Iterations int
Error error
}
func roundDurationMS(d time.Duration) time.Duration {
rounded := d.Round(time.Millisecond)
if rounded == 1<<63-1 {
return 0
}
return rounded
}