How do I test concurrent code in benchmarks for Go?

Testing concurrent code in Go benchmarks can be quite tricky, but it is essential to ensure that your application performs well under concurrent load. Below you'll find an example of how to achieve this using Go's built-in testing framework.

A common approach is to use the Go testing package along with goroutines to simulate concurrent behavior while measuring performance. Below is a sample benchmark that demonstrates how to test concurrent code.

package main import ( "sync" "testing" ) var wg sync.WaitGroup func doWork() { // Simulate work // You can replace this with actual logic for i := 0; i < 1000; i++ { _ = i * i } wg.Done() } func BenchmarkConcurrentExecution(b *testing.B) { for i := 0; i < b.N; i++ { wg.Add(10) // Number of goroutines for j := 0; j < 10; j++ { go doWork() } wg.Wait() } }

Go concurrency benchmarks testing Go testing performance testing

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