// Tests a batch of queries very similar to those that that PGBench runs
// in its TPC-B(ish) mode.
func runPgbenchQueryParallel(b *testing.B, db *sql.DB) {
if err := pgbench.SetupBenchDB(db, 20000, true /*quiet*/); err != nil {
b.Fatal(err)
}
retryOpts := retry.Options{
InitialBackoff: 1 * time.Millisecond,
MaxBackoff: 200 * time.Millisecond,
Multiplier: 2,
}
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
src := rand.New(rand.NewSource(5432))
r := retry.Start(retryOpts)
var err error
for pb.Next() {
r.Reset()
for r.Next() {
err = pgbench.RunOne(db, src, 20000)
if err == nil {
break
}
}
if err != nil {
b.Fatal(err)
}
}
})
b.StopTimer()
}
// Tests a batch of queries very similar to those that that PGBench runs
// in its TPC-B(ish) mode.
func runPgbenchQuery(b *testing.B, db *sql.DB) {
if err := pgbench.SetupBenchDB(db, 20000, true /*quiet*/); err != nil {
b.Fatal(err)
}
src := rand.New(rand.NewSource(5432))
b.ResetTimer()
for i := 0; i < b.N; i++ {
if err := pgbench.RunOne(db, src, 20000); err != nil {
b.Fatal(err)
}
}
b.StopTimer()
}
func main() {
accounts := flag.Int("accounts", 100000, "number of accounts to create")
createDb := flag.Bool("createdb", false, "attempt to create named db, dropping first if exists (must be able to connect to default db to do so).")
flag.Parse()
flag.Usage = usage
if flag.NArg() != 1 {
flag.Usage()
os.Exit(2)
}
var db *sql.DB
var err error
if *createDb {
name := ""
parsed, parseErr := url.Parse(flag.Arg(0))
if parseErr != nil {
panic(parseErr)
} else if len(parsed.Path) < 2 { // first char is '/'
panic("URL must include db name")
} else {
name = parsed.Path[1:]
}
db, err = pgbench.CreateAndConnect(*parsed, name)
} else {
db, err = sql.Open("postgres", flag.Arg(0))
}
if err != nil {
panic(err)
}
defer db.Close()
if err := pgbench.SetupBenchDB(db, *accounts, false); err != nil {
panic(err)
}
}
