server: skip unnecessary sprintf which executes proto.Size()

server/etcdserver/util_bench_test.go

@@ -0,0 +1,50 @@
+// Copyright 2021 The etcd Authors
+//
+// 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
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package etcdserver
+
+import (
+	"errors"
+	"go.etcd.io/etcd/raft/v3/raftpb"
+	"testing"
+	"time"
+)
+
+func BenchmarkWarnOfExpensiveRequestNoLog(b *testing.B) {
+	m := &raftpb.Message{
+		Type:    0,
+		To:      0,
+		From:    1,
+		Term:    2,
+		LogTerm: 3,
+		Index:   0,
+		Entries: []raftpb.Entry{
+			{
+				Term:  0,
+				Index: 0,
+				Type:  0,
+				Data:  make([]byte, 1024),
+			},
+		},
+		Commit:     0,
+		Snapshot:   raftpb.Snapshot{},
+		Reject:     false,
+		RejectHint: 0,
+		Context:    nil,
+	}
+	err := errors.New("benchmarking warn of expensive request")
+	for n := 0; n < b.N; n++ {
+		warnOfExpensiveRequest(testLogger, time.Second, time.Now(), nil, m, err)
+	}
+}