From 3f85ae70e05cece4abf4a041929673aa244049fc Mon Sep 17 00:00:00 2001
From: micah <code@getbraintree.com>
Date: Tue, 27 Mar 2018 20:48:25 +0000
Subject: [PATCH] lease: add lease benchmarks

---
 lease/lessor_bench_test.go | 120 +++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 lease/lessor_bench_test.go

diff --git a/lease/lessor_bench_test.go b/lease/lessor_bench_test.go
new file mode 100644
index 00000000000..063c5519f29
--- /dev/null
+++ b/lease/lessor_bench_test.go
@@ -0,0 +1,120 @@
+// Copyright 2018 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 lease
+
+import (
+	"testing"
+	"os"
+	"github.com/coreos/etcd/mvcc/backend"
+)
+
+func BenchmarkLessorFindExpired1(b *testing.B) { benchmarkLessorFindExpired(1, b) }
+func BenchmarkLessorFindExpired10(b *testing.B) { benchmarkLessorFindExpired(10, b) }
+func BenchmarkLessorFindExpired100(b *testing.B)  { benchmarkLessorFindExpired(100, b) }
+func BenchmarkLessorFindExpired1000(b *testing.B)  { benchmarkLessorFindExpired(1000, b) }
+func BenchmarkLessorFindExpired10000(b *testing.B)  { benchmarkLessorFindExpired(10000, b) }
+func BenchmarkLessorFindExpired100000(b *testing.B)  { benchmarkLessorFindExpired(100000, b) }
+func BenchmarkLessorFindExpired1000000(b *testing.B)  { benchmarkLessorFindExpired(1000000, b) }
+
+func BenchmarkLessorGrant1(b *testing.B) { benchmarkLessorGrant(1, b) }
+func BenchmarkLessorGrant10(b *testing.B) { benchmarkLessorGrant(10, b) }
+func BenchmarkLessorGrant100(b *testing.B)  { benchmarkLessorGrant(100, b) }
+func BenchmarkLessorGrant1000(b *testing.B)  { benchmarkLessorGrant(1000, b) }
+func BenchmarkLessorGrant10000(b *testing.B)  { benchmarkLessorGrant(10000, b) }
+func BenchmarkLessorGrant100000(b *testing.B)  { benchmarkLessorGrant(100000, b) }
+func BenchmarkLessorGrant1000000(b *testing.B)  { benchmarkLessorGrant(1000000, b) }
+
+func BenchmarkLessorRenew1(b *testing.B) { benchmarkLessorRenew(1, b) }
+func BenchmarkLessorRenew10(b *testing.B) { benchmarkLessorRenew(10, b) }
+func BenchmarkLessorRenew100(b *testing.B)  { benchmarkLessorRenew(100, b) }
+func BenchmarkLessorRenew1000(b *testing.B)  { benchmarkLessorRenew(1000, b) }
+func BenchmarkLessorRenew10000(b *testing.B)  { benchmarkLessorRenew(10000, b) }
+func BenchmarkLessorRenew100000(b *testing.B)  { benchmarkLessorRenew(100000, b) }
+func BenchmarkLessorRenew1000000(b *testing.B)  { benchmarkLessorRenew(1000000, b) }
+
+func BenchmarkLessorRevoke1(b *testing.B) { benchmarkLessorRevoke(1, b) }
+func BenchmarkLessorRevoke10(b *testing.B) { benchmarkLessorRevoke(10, b) }
+func BenchmarkLessorRevoke100(b *testing.B)  { benchmarkLessorRevoke(100, b) }
+func BenchmarkLessorRevoke1000(b *testing.B)  { benchmarkLessorRevoke(1000, b) }
+func BenchmarkLessorRevoke10000(b *testing.B)  { benchmarkLessorRevoke(10000, b) }
+func BenchmarkLessorRevoke100000(b *testing.B)  { benchmarkLessorRevoke(100000, b) }
+func BenchmarkLessorRevoke1000000(b *testing.B)  { benchmarkLessorRevoke(1000000, b) }
+
+func benchmarkLessorFindExpired(size int, b *testing.B) {
+	be, tmpPath := backend.NewDefaultTmpBackend()
+	le := newLessor(be, minLeaseTTL)
+	defer le.Stop()
+	defer cleanup(be, tmpPath)
+	le.Promote(0)
+	for i := 0; i < size; i++ {
+		le.Grant(LeaseID(i), int64(100+i))
+	}
+	le.mu.Lock() //Stop the findExpiredLeases call in the runloop
+	defer le.mu.Unlock()
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		le.findExpiredLeases(1000)
+	}
+}
+
+func benchmarkLessorGrant(size int, b *testing.B) {
+	be, tmpPath := backend.NewDefaultTmpBackend()
+	le := newLessor(be, minLeaseTTL)
+	defer le.Stop()
+	defer cleanup(be, tmpPath)
+	for i := 0; i < size; i++ {
+		le.Grant(LeaseID(i), int64(100+i))
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		le.Grant(LeaseID(i+size), int64(100+i+size))
+	}
+}
+
+func benchmarkLessorRevoke(size int, b *testing.B) {
+	be, tmpPath := backend.NewDefaultTmpBackend()
+	le := newLessor(be, minLeaseTTL)
+	defer le.Stop()
+	defer cleanup(be, tmpPath)
+	for i := 0; i < size; i++ {
+		le.Grant(LeaseID(i), int64(100+i))
+	}
+	for i := 0; i < b.N; i++ {
+		le.Grant(LeaseID(i+size), int64(100+i+size))
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		le.Revoke(LeaseID(i+size))
+	}
+}
+
+func benchmarkLessorRenew(size int, b *testing.B) {
+	be, tmpPath := backend.NewDefaultTmpBackend()
+	le := newLessor(be, minLeaseTTL)
+	defer le.Stop()
+	defer cleanup(be, tmpPath)
+	for i := 0; i < size; i++ {
+		le.Grant(LeaseID(i), int64(100+i))
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		le.Renew(LeaseID(i))
+	}
+}
+
+func cleanup(b backend.Backend, path string) {
+	b.Close()
+	os.Remove(path)
+}