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// Copyright 2020 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package newrelic
import (
"net/http"
"testing"
)
var (
sampleLicense = "0123456789012345678901234567890123456789"
)
// BenchmarkMuxWithoutNewRelic acts as a control against the other mux
// benchmarks.
func BenchmarkMuxWithoutNewRelic(b *testing.B) {
mux := http.NewServeMux()
mux.HandleFunc(helloPath, handler)
w := newCompatibleResponseRecorder()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
mux.ServeHTTP(w, helloRequest)
}
}
// BenchmarkMuxWithNewRelic shows the approximate overhead of instrumenting a
// request. The numbers here are approximate since this is a test app: rather
// than putting the transaction into a channel to be processed by another
// goroutine, the transaction is merged directly into a harvest.
func BenchmarkMuxWithNewRelic(b *testing.B) {
app := testApp(nil, nil, b)
mux := http.NewServeMux()
mux.HandleFunc(WrapHandleFunc(app, helloPath, handler))
w := newCompatibleResponseRecorder()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
mux.ServeHTTP(w, helloRequest)
}
}
// BenchmarkMuxWithNewRelic shows the overhead of instrumenting a request when
// the agent is disabled.
func BenchmarkMuxDisabledMode(b *testing.B) {
cfg := NewConfig("my app", sampleLicense)
cfg.Enabled = false
app, err := newApp(cfg)
if nil != err {
b.Fatal(err)
}
mux := http.NewServeMux()
mux.HandleFunc(WrapHandleFunc(app, helloPath, handler))
w := newCompatibleResponseRecorder()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
mux.ServeHTTP(w, helloRequest)
}
}
// BenchmarkTraceSegmentWithDefer shows the overhead of instrumenting a segment
// using defer. This and BenchmarkTraceSegmentNoDefer are extremely important:
// Timing functions and blocks of code should have minimal cost.
func BenchmarkTraceSegmentWithDefer(b *testing.B) {
cfg := NewConfig("my app", sampleLicense)
cfg.Enabled = false
app, err := newApp(cfg)
if nil != err {
b.Fatal(err)
}
txn := app.StartTransaction("my txn", nil, nil)
fn := func() {
defer StartSegment(txn, "alpha").End()
}
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
fn()
}
}
func BenchmarkTraceSegmentNoDefer(b *testing.B) {
cfg := NewConfig("my app", sampleLicense)
cfg.Enabled = false
app, err := newApp(cfg)
if nil != err {
b.Fatal(err)
}
txn := app.StartTransaction("my txn", nil, nil)
fn := func() {
s := StartSegment(txn, "alpha")
s.End()
}
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
fn()
}
}
func BenchmarkTraceSegmentZeroSegmentThreshold(b *testing.B) {
cfg := NewConfig("my app", sampleLicense)
cfg.Enabled = false
cfg.TransactionTracer.SegmentThreshold = 0
app, err := newApp(cfg)
if nil != err {
b.Fatal(err)
}
txn := app.StartTransaction("my txn", nil, nil)
fn := func() {
s := StartSegment(txn, "alpha")
s.End()
}
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
fn()
}
}
func BenchmarkDatastoreSegment(b *testing.B) {
cfg := NewConfig("my app", sampleLicense)
cfg.Enabled = false
app, err := newApp(cfg)
if nil != err {
b.Fatal(err)
}
txn := app.StartTransaction("my txn", nil, nil)
fn := func(txn Transaction) {
ds := DatastoreSegment{
StartTime: txn.StartSegmentNow(),
Product: DatastoreMySQL,
Collection: "my_table",
Operation: "Select",
}
defer ds.End()
}
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
fn(txn)
}
}
func BenchmarkExternalSegment(b *testing.B) {
cfg := NewConfig("my app", sampleLicense)
cfg.Enabled = false
app, err := newApp(cfg)
if nil != err {
b.Fatal(err)
}
txn := app.StartTransaction("my txn", nil, nil)
fn := func(txn Transaction) {
es := &ExternalSegment{
StartTime: txn.StartSegmentNow(),
URL: "http://example.com/",
}
defer es.End()
}
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
fn(txn)
}
}
func BenchmarkTxnWithSegment(b *testing.B) {
app := testApp(nil, nil, b)
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
txn := app.StartTransaction("my txn", nil, nil)
StartSegment(txn, "myFunction").End()
txn.End()
}
}
func BenchmarkTxnWithDatastore(b *testing.B) {
app := testApp(nil, nil, b)
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
txn := app.StartTransaction("my txn", nil, nil)
ds := &DatastoreSegment{
StartTime: txn.StartSegmentNow(),
Product: DatastoreMySQL,
Collection: "my_table",
Operation: "Select",
}
ds.End()
txn.End()
}
}
func BenchmarkTxnWithExternal(b *testing.B) {
app := testApp(nil, nil, b)
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
txn := app.StartTransaction("my txn", nil, nil)
es := &ExternalSegment{
StartTime: txn.StartSegmentNow(),
URL: "http://example.com",
}
es.End()
txn.End()
}
}
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