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package rubyserver
import (
"fmt"
"sync"
"testing"
"time"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/gitaly/internal/gitaly/config"
"gitlab.com/gitlab-org/gitaly/internal/testhelper"
"google.golang.org/grpc/codes"
healthpb "google.golang.org/grpc/health/grpc_health_v1"
"google.golang.org/grpc/status"
)
func waitPing(s *Server) error {
var err error
for start := time.Now(); time.Since(start) < ConnectTimeout; time.Sleep(100 * time.Millisecond) {
err = makeRequest(s)
if err == nil {
return nil
}
}
return err
}
// This benchmark lets you see what happens when you throw a lot of
// concurrent traffic at gitaly-ruby.
func BenchmarkConcurrency(b *testing.B) {
config.Config.Ruby.NumWorkers = 2
s := New(config.Config)
require.NoError(b, s.Start())
defer s.Stop()
// Warm-up: wait for gitaly-ruby to boot
if err := waitPing(s); err != nil {
b.Fatal(err)
}
concurrency := 100
b.Run(fmt.Sprintf("concurrency %d", concurrency), func(b *testing.B) {
errCh := make(chan error)
errCount := make(chan int)
go func() {
count := 0
for err := range errCh {
b.Log(err)
count++
}
errCount <- count
}()
wg := &sync.WaitGroup{}
for i := 0; i < concurrency; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for j := 0; j < 1000; j++ {
err := makeRequest(s)
if err != nil {
errCh <- err
}
switch status.Code(err) {
case codes.Unavailable:
return
case codes.DeadlineExceeded:
return
}
}
}()
}
wg.Wait()
close(errCh)
if count := <-errCount; count != 0 {
b.Fatalf("received %d errors", count)
}
})
}
func makeRequest(s *Server) error {
ctx, cancel := testhelper.Context(testhelper.ContextWithTimeout(time.Second))
defer cancel()
conn, err := s.getConnection(ctx)
if err != nil {
return err
}
client := healthpb.NewHealthClient(conn)
_, err = client.Check(ctx, &healthpb.HealthCheckRequest{})
return err
}
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