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Compare binary and text format through pgx 

Make ID field bigger -- otherwise all ints are less than 4 digits and
get a bit too much of an advantage in text vs. binary
pull/745/head
Jack Christensen 2020-05-07 22:06:07 -05:00
parent e439372d2a
commit dea915e605
2 changed files with 37 additions and 20 deletions
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55
bench_test.go
View File

@ -993,7 +993,7 @@ func BenchmarkSelectRowsScanSimple(b *testing.B) {
b.Run(fmt.Sprintf("%d rows", rowCount), func(b *testing.B) {
br := &BenchRowSimple{}
for i := 0; i < b.N; i++ {
rows, err := conn.Query(context.Background(), "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, $1) n", rowCount)
rows, err := conn.Query(context.Background(), "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + $1) n", rowCount)
if err != nil {
b.Fatal(err)
}
@ -1031,7 +1031,7 @@ func BenchmarkSelectRowsScanStringBytes(b *testing.B) {
b.Run(fmt.Sprintf("%d rows", rowCount), func(b *testing.B) {
br := &BenchRowStringBytes{}
for i := 0; i < b.N; i++ {
rows, err := conn.Query(context.Background(), "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, $1) n", rowCount)
rows, err := conn.Query(context.Background(), "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + $1) n", rowCount)
if err != nil {
b.Fatal(err)
}
@ -1059,7 +1059,7 @@ type BenchRowDecoder struct {
UpdateTime pgtype.Timestamptz
}
func BenchmarkSelectRowsScanBinaryDecoder(b *testing.B) {
func BenchmarkSelectRowsScanDecoder(b *testing.B) {
conn := mustConnectString(b, os.Getenv("PGX_TEST_DATABASE"))
defer closeConn(b, conn)
@ -1067,20 +1067,37 @@ func BenchmarkSelectRowsScanBinaryDecoder(b *testing.B) {
for _, rowCount := range rowCounts {
b.Run(fmt.Sprintf("%d rows", rowCount), func(b *testing.B) {
br := &BenchRowDecoder{}
for i := 0; i < b.N; i++ {
rows, err := conn.Query(context.Background(), "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, $1) n", rowCount)
if err != nil {
b.Fatal(err)
}
formats := []struct {
name string
code int16
}{
{"text", pgx.TextFormatCode},
{"binary", pgx.BinaryFormatCode},
}
for _, format := range formats {
b.Run(format.name, func(b *testing.B) {
for rows.Next() {
rows.Scan(&br.ID, &br.FirstName, &br.LastName, &br.Sex, &br.BirthDate, &br.Weight, &br.Height, &br.UpdateTime)
}
br := &BenchRowDecoder{}
for i := 0; i < b.N; i++ {
rows, err := conn.Query(
context.Background(),
"select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + $1) n",
pgx.QueryResultFormats{format.code},
rowCount,
)
if err != nil {
b.Fatal(err)
}
if rows.Err() != nil {
b.Fatal(rows.Err())
}
for rows.Next() {
rows.Scan(&br.ID, &br.FirstName, &br.LastName, &br.Sex, &br.BirthDate, &br.Weight, &br.Height, &br.UpdateTime)
}
if rows.Err() != nil {
b.Fatal(rows.Err())
}
}
})
}
})
}
@ -1096,7 +1113,7 @@ func BenchmarkSelectRowsExplicitBinaryDecoding(b *testing.B) {
b.Run(fmt.Sprintf("%d rows", rowCount), func(b *testing.B) {
br := &BenchRowDecoder{}
for i := 0; i < b.N; i++ {
rows, err := conn.Query(context.Background(), "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, $1) n", rowCount)
rows, err := conn.Query(context.Background(), "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + $1) n", rowCount)
if err != nil {
b.Fatal(err)
}
@ -1162,7 +1179,7 @@ func BenchmarkSelectRowsPgConnExecText(b *testing.B) {
for _, rowCount := range rowCounts {
b.Run(fmt.Sprintf("%d rows", rowCount), func(b *testing.B) {
for i := 0; i < b.N; i++ {
mrr := conn.PgConn().Exec(context.Background(), fmt.Sprintf("select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, %d) n", rowCount))
mrr := conn.PgConn().Exec(context.Background(), fmt.Sprintf("select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + %d) n", rowCount))
for mrr.NextResult() {
rr := mrr.ResultReader()
for rr.NextRow() {
@ -1199,7 +1216,7 @@ func BenchmarkSelectRowsPgConnExecParams(b *testing.B) {
for i := 0; i < b.N; i++ {
rr := conn.PgConn().ExecParams(
context.Background(),
"select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, $1) n",
"select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + $1) n",
[][]byte{[]byte(strconv.FormatInt(rowCount, 10))},
nil,
nil,
@ -1226,7 +1243,7 @@ func BenchmarkSelectRowsPgConnExecPrepared(b *testing.B) {
rowCounts := getSelectRowsCounts(b)
_, err := conn.PgConn().Prepare(context.Background(), "ps1", "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, $1) n", nil)
_, err := conn.PgConn().Prepare(context.Background(), "ps1", "select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + $1) n", nil)
if err != nil {
b.Fatal(err)
}

2
stdlib/bench_test.go
View File

@ -91,7 +91,7 @@ func BenchmarkSelectRowsScanNull(b *testing.B) {
b.Run(fmt.Sprintf("%d rows", rowCount), func(b *testing.B) {
br := &BenchRowSimple{}
for i := 0; i < b.N; i++ {
rows, err := db.Query("select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(1, $1) n", rowCount)
rows, err := db.Query("select n, 'Adam', 'Smith ' || n, 'male', '1952-06-16'::date, 258, 72, now() from generate_series(100000, 100000 + $1) n", rowCount)
if err != nil {
b.Fatal(err)
}