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main_test.go
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main_test.go
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package main_test
import (
"context"
"database/sql"
"fmt"
"testing"
sq "github.com/Masterminds/squirrel"
"github.com/brianvoe/gofakeit/v5"
"github.com/davecgh/go-spew/spew"
ps "github.com/georgysavva/scany/pgxscan"
dbx "github.com/go-ozzo/ozzo-dbx"
"github.com/jackc/pgx/v4/pgxpool"
_ "github.com/jackc/pgx/v4/stdlib"
"github.com/jmoiron/sqlx"
"gorm.io/driver/postgres"
"gorm.io/gorm"
)
var (
db *sql.DB
_ = spew.UnsafeDisabled
ozzoDB *dbx.DB
gormDB *gorm.DB
sqlxDB *sqlx.DB
pgxPool *pgxpool.Pool
)
// Add DB credentials here
var (
host string = "localhost"
port int = 5432
user string = "postgres"
pass string = "pass"
dbname string = "ormbench"
)
func init() {
dsn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable", host, port, user, pass, dbname)
db, _ = sql.Open("pgx", dsn)
db.SetMaxOpenConns(1)
err := db.Ping()
if err != nil {
panic(err)
}
ozzoDB = dbx.NewFromDB(db, "pgx")
gormDB, err = gorm.Open(postgres.New(postgres.Config{Conn: db}), &gorm.Config{})
if err != nil {
panic(err)
}
sqlxDB = sqlx.NewDb(db, "pgx")
// pgxpool
cfg, err := pgxpool.ParseConfig(dsn)
if err != nil {
panic(err)
}
pgxPool, err = pgxpool.ConnectConfig(context.Background(), cfg)
if err != nil {
panic(err)
}
}
type model struct {
ID int `dbq:"id" gorm:"column:id" db:"id"`
Name string `dbq:"name" gorm:"column:name" db:"name"`
Email string `dbq:"email" gorm:"column:email" db:"email"`
}
// Required by gorm
func (model) TableName() string {
return "tests"
}
func Benchmark(b *testing.B) {
setup()
defer cleanup()
limits := []int{
5,
50,
100,
500,
10000,
}
for _, lim := range limits {
lim := lim
// Benchmark ozzo-dbx
b.Run(fmt.Sprintf("ozzo-dbx limit:%d", lim), func(b *testing.B) {
for i := 0; i < b.N; i++ {
var res []model
err := ozzoDB.Select().From("tests").OrderBy("id").Limit(int64(lim)).All(&res)
if err != nil {
b.Fatal(err)
}
if len(res) != lim {
panic("something is wrong")
}
}
})
// Benchmark sqlx
b.Run(fmt.Sprintf("sqlx limit:%d", lim), func(b *testing.B) {
for i := 0; i < b.N; i++ {
var res []model
q := fmt.Sprintf("SELECT id, name, email FROM tests ORDER BY id LIMIT %d", lim)
err := sqlxDB.Select(&res, q)
if err != nil {
b.Fatal(err)
}
if len(res) != lim {
panic("something is wrong")
}
}
})
// Benchmark gorm v2
b.Run(fmt.Sprintf("gorm v2 limit:%d", lim), func(b *testing.B) {
for i := 0; i < b.N; i++ {
var res []model
err := gormDB.Order("id").Limit(lim).Find(&res).Error
if err != nil {
b.Fatal(err)
}
if len(res) != lim {
panic("something is wrong")
}
}
})
build := sq.StatementBuilder.PlaceholderFormat(sq.Dollar)
// Benchmark pgx v4 with pgxscan
b.Run(fmt.Sprintf("pgxpool limit:%d", lim), func(b *testing.B) {
for i := 0; i < b.N; i++ {
var res []model
q, args, err := build.Select("*").From("tests").OrderBy("id").Limit(uint64(lim)).ToSql()
if err != nil {
b.Fatal(err)
}
err = ps.Select(context.Background(), pgxPool, &res, q, args...)
if err != nil {
b.Fatal(err)
}
if len(res) != lim {
panic("something is wrong")
}
}
})
fmt.Println("========================================================================")
}
}
func setup() {
// Create table
createQ := `
CREATE TABLE tests (
id int NOT NULL,
name varchar(50) NOT NULL DEFAULT '',
email varchar(150) NOT NULL DEFAULT '',
PRIMARY KEY (id)
)`
_, err := db.Exec(createQ)
if err != nil {
panic(err)
}
tx := gormDB.Begin()
// Add 10,000 fake entries
for i := 0; i < 10000; i++ {
err = tx.Create(&model{i + 1,
gofakeit.Name(),
gofakeit.Email()}).Error
if err != nil {
tx.Rollback()
panic(err)
}
}
err = tx.Commit().Error
if err != nil {
tx.Rollback()
panic(err)
}
}
func cleanup() {
_, err := db.Exec(`DROP TABLE tests`)
if err != nil {
panic(err)
}
}