From 4b34a80ca2a8d471f791f9badbba1f60be31f893 Mon Sep 17 00:00:00 2001
From: Andres Taylor <andres@planetscale.com>
Date: Thu, 21 Mar 2024 10:56:12 +0100
Subject: [PATCH] test: add benchmarks for concatenate and simple-concatenate

Signed-off-by: Andres Taylor <andres@planetscale.com>
---
 go/vt/vtgate/engine/concatenate_test.go       | 52 +++++++++++
 .../vtgate/engine/simple_concatenate_test.go  | 88 +++++++++++++++++++
 2 files changed, 140 insertions(+)
 create mode 100644 go/vt/vtgate/engine/simple_concatenate_test.go

diff --git a/go/vt/vtgate/engine/concatenate_test.go b/go/vt/vtgate/engine/concatenate_test.go
index dd2b1300e9b..26d45c1c5ad 100644
--- a/go/vt/vtgate/engine/concatenate_test.go
+++ b/go/vt/vtgate/engine/concatenate_test.go
@@ -21,8 +21,11 @@ import (
 	"errors"
 	"fmt"
 	"strings"
+	"sync/atomic"
 	"testing"
 
+	querypb "vitess.io/vitess/go/vt/proto/query"
+
 	"vitess.io/vitess/go/mysql/collations"
 	"vitess.io/vitess/go/test/utils"
 
@@ -211,3 +214,52 @@ func TestConcatenateTypes(t *testing.T) {
 		})
 	}
 }
+
+func BenchmarkConcatenateTryExecute(b *testing.B) {
+	fakeSrc1, fakeSrc2, prim := createConcatenateForTest()
+	ctx := context.Background()
+	b.ResetTimer()
+	vcursor := &noopVCursor{}
+	count := 0
+	for i := 0; i < b.N; i++ {
+		res, err := prim.TryExecute(ctx, vcursor, map[string]*querypb.BindVariable{}, true)
+		require.NoError(b, err)
+		count += len(res.Rows)
+		fakeSrc1.curResult = 0
+		fakeSrc2.curResult = 0
+	}
+}
+
+func BenchmarkConcatenateTryStreamExecute(b *testing.B) {
+	fakeSrc1, fakeSrc2, prim := createConcatenateForTest()
+	ctx := context.Background()
+	b.ResetTimer()
+	vcursor := &noopVCursor{}
+	var count atomic.Int32
+	for i := 0; i < b.N; i++ {
+		err := prim.TryStreamExecute(ctx, vcursor, map[string]*querypb.BindVariable{}, true, func(result *sqltypes.Result) error {
+			count.Add(int32(len(result.Rows)))
+			return nil
+		})
+		require.NoError(b, err)
+		fakeSrc1.curResult = 0
+		fakeSrc2.curResult = 0
+	}
+}
+
+func createConcatenateForTest() (*fakePrimitive, *fakePrimitive, *Concatenate) {
+	fake := r("id|col1|col2", "int64|varchar|varbinary", "1|a1|b1", "2|a2|b2")
+	var rows []string
+	for x := range 10 {
+		rows = append(rows, fmt.Sprintf("%d|a%d|b%d", x, x, x))
+	}
+	result := sqltypes.MakeTestResult(fake.Fields, rows...)
+	fake.Rows = result.Rows
+	fakeSrc1 := &fakePrimitive{results: []*sqltypes.Result{fake, fake}}
+	fakeSrc2 := &fakePrimitive{results: []*sqltypes.Result{fake, fake}}
+	prim := NewConcatenate([]Primitive{
+		fakeSrc1,
+		fakeSrc2,
+	}, nil)
+	return fakeSrc1, fakeSrc2, prim
+}
diff --git a/go/vt/vtgate/engine/simple_concatenate_test.go b/go/vt/vtgate/engine/simple_concatenate_test.go
new file mode 100644
index 00000000000..767214e5995
--- /dev/null
+++ b/go/vt/vtgate/engine/simple_concatenate_test.go
@@ -0,0 +1,88 @@
+/*
+Copyright 2024 The Vitess 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 engine
+
+import (
+	"context"
+	"fmt"
+	"sync/atomic"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"vitess.io/vitess/go/sqltypes"
+	querypb "vitess.io/vitess/go/vt/proto/query"
+)
+
+func BenchmarkSimpleConcatenateTryExecute(b *testing.B) {
+	fakeSrc1, fakeSrc2, prim := createSimpleConcatenateForTest()
+	ctx := context.Background()
+	b.ResetTimer()
+	vcursor := &noopVCursor{}
+	count := 0
+	for i := 0; i < b.N; i++ {
+		res, err := prim.TryExecute(ctx, vcursor, map[string]*querypb.BindVariable{}, true)
+		require.NoError(b, err)
+		count += len(res.Rows)
+		fakeSrc1.curResult = 0
+		fakeSrc2.curResult = 0
+	}
+}
+
+func BenchmarkSimpleConcatenateTryStreamExecute(b *testing.B) {
+	fakeSrc1, fakeSrc2, prim := createSimpleConcatenateForTest()
+	ctx := context.Background()
+	b.ResetTimer()
+	vcursor := &noopVCursor{}
+	var count atomic.Int32
+	for i := 0; i < b.N; i++ {
+		err := prim.TryStreamExecute(ctx, vcursor, map[string]*querypb.BindVariable{}, true, func(result *sqltypes.Result) error {
+			count.Add(int32(len(result.Rows)))
+			return nil
+		})
+		require.NoError(b, err)
+		fakeSrc1.curResult = 0
+		fakeSrc2.curResult = 0
+	}
+}
+
+func createSimpleConcatenateForTest() (*fakePrimitive, *fakePrimitive, *SimpleConcatenate) {
+	fake := r("id|col1|col2", "int64|varchar|varbinary", "1|a1|b1", "2|a2|b2")
+	var rows []string
+	for x := range 10 {
+		rows = append(rows, fmt.Sprintf("%d|a%d|b%d", x, x, x))
+	}
+	result := sqltypes.MakeTestResult(fake.Fields, rows...)
+	fake.Rows = result.Rows
+	fakeSrc1 := &fakePrimitive{results: []*sqltypes.Result{fake, fake}}
+	fakeSrc2 := &fakePrimitive{results: []*sqltypes.Result{fake, fake}}
+	prim := NewSimpleConcatenate([]Primitive{
+		fakeSrc1,
+		fakeSrc2,
+	})
+	return fakeSrc1, fakeSrc2, prim
+}
+
+func TestName(t *testing.T) {
+	var x atomic.Bool
+	for range 100 {
+		go func() {
+			old := x.Swap(true)
+			t.Log(old)
+		}()
+	}
+}