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parse_json_amd64_test.go
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parse_json_amd64_test.go
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//+build !noasm
//+build !appengine
//+build gc
/*
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
*
* 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 simdjson
import (
"bytes"
"fmt"
"reflect"
"runtime"
"strconv"
"testing"
)
func TestDemoNdjson(t *testing.T) {
pj := internalParsedJson{}
if err := pj.parseMessageNdjson([]byte(demo_ndjson)); err != nil {
t.Errorf("TestDemoNdjson: got: %v want: nil", err)
}
verifyDemoNdjson(pj, t, 0)
}
func TestNdjsonEmptyLines(t *testing.T) {
ndjson_emptylines := []string{`{"zero":"emptylines"}
{"c":"d"}`,
`{"single":"emptyline"}
{"c":"d"}`,
`{"dual":"emptylines"}
{"c":"d"}`,
`{"triple":"emptylines"}
{"c":"d"}`}
pj := internalParsedJson{}
for _, json := range ndjson_emptylines {
if err := pj.parseMessageNdjson([]byte(json)); err != nil {
t.Errorf("TestNdjsonEmptyLine: got: %v want: nil", err)
}
}
}
func BenchmarkNdjsonStage2(b *testing.B) {
ndjson := loadFile("testdata/parking-citations-1M.json.zst")
pj := internalParsedJson{}
b.SetBytes(int64(len(ndjson)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
err := pj.parseMessageNdjson(ndjson)
if err != nil {
panic(err)
}
}
}
func BenchmarkNdjsonStage1(b *testing.B) {
ndjson := loadFile("testdata/parking-citations-1M.json.zst")
pj := internalParsedJson{}
b.SetBytes(int64(len(ndjson)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
// Create new channel (large enough so we won't block)
pj.index_chan = make(chan indexChan, 128*10240)
find_structural_indices([]byte(ndjson), &pj)
}
}
func BenchmarkNdjsonColdCountStar(b *testing.B) {
ndjson := loadFile("testdata/parking-citations-1M.json.zst")
b.SetBytes(int64(len(ndjson)))
b.ReportAllocs()
// Allocate stuff
pj := internalParsedJson{}
b.ResetTimer()
for i := 0; i < b.N; i++ {
pj.parseMessageNdjson(ndjson)
count_raw_tape(pj.Tape)
}
}
func BenchmarkNdjsonColdCountStarWithWhere(b *testing.B) {
ndjson := loadFile("testdata/parking-citations-1M.json.zst")
const want = 110349
runtime.GC()
pj := internalParsedJson{}
b.Run("raw", func(b *testing.B) {
b.SetBytes(int64(len(ndjson)))
b.ReportAllocs()
for i := 0; i < b.N; i++ {
err := pj.parseMessage(ndjson)
if err != nil {
b.Fatal(err)
}
got := countRawTapeWhere("Make", "HOND", pj.ParsedJson)
if got != want {
b.Fatal(got, "!=", want)
}
}
})
b.Run("iter", func(b *testing.B) {
b.SetBytes(int64(len(ndjson)))
b.ReportAllocs()
for i := 0; i < b.N; i++ {
err := pj.parseMessage(ndjson)
if err != nil {
b.Fatal(err)
}
got := countWhere("Make", "HOND", pj.ParsedJson)
if got != want {
b.Fatal(got, "!=", want)
}
}
})
}
func TestParseNumber(t *testing.T) {
if GOLANG_NUMBER_PARSING {
t.Skip()
}
testCases := []struct {
input string
is_double bool
expectedD float64
expectedI int
}{
{"1", false, 0.0, 1},
{"-1", false, 0.0, -1},
{"1.0", true, 1.0, 0},
{"1234567890", false, 0.0, 1234567890},
{"9876.543210", true, 9876.543210, 0},
{"0.123456789e-12", true, 1.23456789e-13, 0},
{"1.234567890E+34", true, 1.234567890e+34, 0},
{"23456789012E66", true, 23456789012e66, 0},
{"-9876.543210", true, -9876.543210, 0},
// The number below parses to -65.61972000000004 for parse_number()
// This extra inprecision is tolerated when GOLANG_NUMBER_PARSING = false
{"-65.619720000000029", true, -65.61972000000003, 0},
}
for _, tc := range testCases {
found_minus := false
if tc.input[0] == '-' {
found_minus = true
}
succes, is_double, d, i := parse_number_simd([]byte(fmt.Sprintf(`%s:`, tc.input)), found_minus)
if !succes {
t.Errorf("TestParseNumber: got: %v want: %v", succes, true)
}
if is_double != tc.is_double {
t.Errorf("TestParseNumber: got: %v want: %v", is_double, tc.is_double)
}
if is_double {
if !closeEnough(d, tc.expectedD) {
if GOLANG_NUMBER_PARSING {
t.Errorf("TestParseNumber: got: %g want: %g", d, tc.expectedD)
} else {
if !closeEnoughLessPrecision(d, tc.expectedD) {
t.Errorf("TestParseNumber: got: %g want: %g", d, tc.expectedD)
}
}
}
} else {
if i != tc.expectedI {
t.Errorf("TestParseNumber: got: %d want: %d", i, tc.expectedI)
}
}
}
}
func TestParseInt64(t *testing.T) {
if GOLANG_NUMBER_PARSING {
t.Skip()
}
for i := range parseInt64Tests {
test := &parseInt64Tests[i]
found_minus := false
if test.in[0] == '-' {
found_minus = true
}
succes, is_double, _, i := parse_number_simd([]byte(fmt.Sprintf(`%s:`, test.in)), found_minus)
if !succes {
// Ignore intentionally bad syntactical errors
if !reflect.DeepEqual(test.err, strconv.ErrSyntax) {
t.Errorf("TestParseInt64: got: %v want: %v", succes, true)
}
continue // skip testing the rest for this test case
}
if is_double {
t.Errorf("TestParseInt64: got: %v want: %v", is_double, false)
}
if i != test.out {
// Ignore intentionally wrong conversions
if !reflect.DeepEqual(test.err, strconv.ErrRange) {
t.Errorf("TestParseInt64: got: %v want: %v", i, test.out)
}
}
}
}
func TestParseFloat64(t *testing.T) {
if GOLANG_NUMBER_PARSING {
t.Skip()
}
for i := 0; i < len(atoftests); i++ {
test := &atoftests[i]
found_minus := false
if test.in[0] == '-' {
found_minus = true
}
succes, is_double, d, _ := parse_number_simd([]byte(fmt.Sprintf(`%s:`, test.in)), found_minus)
if !succes {
// Ignore intentionally bad syntactical errors
if !reflect.DeepEqual(test.err, strconv.ErrSyntax) {
t.Errorf("TestParseFloat64: got: %v want: %v", succes, true)
}
continue // skip testing the rest for this test case
}
if !is_double {
t.Errorf("TestParseFloat64: got: %v want: %v", is_double, true)
}
outs := strconv.FormatFloat(d, 'g', -1, 64)
if outs != test.out {
t.Errorf("TestParseFloat64: got: %v want: %v", d, test.out)
}
}
}
// The following code is borrowed from Golang (https://golang.org/src/strconv/atoi_test.go)
type parseInt64Test struct {
in string
out int
err error
}
var parseInt64Tests = []parseInt64Test{
// {"", 0, strconv.ErrSyntax}, /* fails for simdjson */
{"0", 0, nil},
{"-0", 0, nil},
{"1", 1, nil},
{"-1", -1, nil},
{"12345", 12345, nil},
{"-12345", -12345, nil},
// {"012345", 12345, nil}, /* fails for simdjson */
// {"-012345", -12345, nil}, /* fails for simdjson */
{"98765432100", 98765432100, nil},
{"-98765432100", -98765432100, nil},
{"9223372036854775807", 1<<63 - 1, nil},
{"-9223372036854775807", -(1<<63 - 1), nil},
{"9223372036854775808", 1<<63 - 1, strconv.ErrRange},
{"-9223372036854775808", -1 << 63, nil},
{"9223372036854775809", 1<<63 - 1, strconv.ErrRange},
{"-9223372036854775809", -1 << 63, strconv.ErrRange},
{"-1_2_3_4_5", 0, strconv.ErrSyntax}, // base=10 so no underscores allowed
{"-_12345", 0, strconv.ErrSyntax},
{"_12345", 0, strconv.ErrSyntax},
{"1__2345", 0, strconv.ErrSyntax},
{"12345_", 0, strconv.ErrSyntax},
// zero (originate from atof tests below, but returned as int for simdjson)
{"0e0", 0, nil},
{"-0e0", 0, nil},
{"0e-0", 0, nil},
{"-0e-0", 0, nil},
{"0e+0", 0, nil},
{"-0e+0", 0, nil},
}
// The following code is borrowed from Golang (https://golang.org/src/strconv/atof_test.go)
type atofTest struct {
in string
out string
err error
}
var atoftests = []atofTest{
// {"", "0", strconv.ErrSyntax}, /* fails for simdjson */
// {"1", "1", nil}, /* parsed as int for simdjson */
// {"+1", "1", nil}, /* parsed as int for simdjson */
{"1x", "0", strconv.ErrSyntax},
{"1.1.", "0", strconv.ErrSyntax},
{"1e23", "1e+23", nil},
{"1E23", "1e+23", nil},
// {"100000000000000000000000", "1e+23", nil}, /* parsed as int for simdjson */
{"1e-100", "1e-100", nil},
// {"123456700", "1.234567e+08", nil}, /* parsed as int for simdjson */
// {"99999999999999974834176", "9.999999999999997e+22", nil}, /* parsed as int for simdjson */
// {"100000000000000000000001", "1.0000000000000001e+23", nil}, /* parsed as int for simdjson */
// {"100000000000000008388608", "1.0000000000000001e+23", nil}, /* parsed as int for simdjson */
// {"100000000000000016777215", "1.0000000000000001e+23", nil}, /* parsed as int for simdjson */
// {"100000000000000016777216", "1.0000000000000003e+23", nil}, /* parsed as int for simdjson */
// {"-1", "-1", nil}, /* parsed as int for simdjson */
{"-0.1", "-0.1", nil},
// {"-0", "-0", nil}, /* parsed as int for simdjson */
{"1e-20", "1e-20", nil},
{"625e-3", "0.625", nil},
// Hexadecimal floating-point. /* all fail for simdjson */
// zeros (several test cases for zero have been moved up because they are detected as ints)
// {"+0e0", "0", nil}, /* fails for simdjson */
// {"+0e-0", "0", nil}, /* fails for simdjson */
// {"+0e+0", "0", nil}, /* fails for simdjson */
// {"0e+01234567890123456789", "0", nil}, /* fails for simdjson */
// {"0.00e-01234567890123456789", "0", nil}, /* fails for simdjson */
// {"-0e+01234567890123456789", "-0", nil}, /* fails for simdjson */
// {"-0.00e-01234567890123456789", "-0", nil}, /* fails for simdjson */
{"0e291", "0", nil}, // issue 15364
{"0e292", "0", nil}, // issue 15364
{"0e347", "0", nil}, // issue 15364
{"0e348", "0", nil}, // issue 15364
// {"-0e291", "-0", nil}, /* returns "0" */
// {"-0e292", "-0", nil}, /* returns "0" */
// {"-0e347", "-0", nil}, /* returns "0" */
// {"-0e348", "-0", nil}, /* returns "0" */
// NaNs
// {"nan", "NaN", nil}, /* fails for simdjson */
// {"NaN", "NaN", nil}, /* fails for simdjson */
// {"NAN", "NaN", nil}, /* fails for simdjson */
// Infs
// {"inf", "+Inf", nil}, /* fails for simdjson */
// {"-Inf", "-Inf", nil}, /* fails for simdjson */
// {"+INF", "+Inf", nil}, /* fails for simdjson */
// {"-Infinity", "-Inf", nil}, /* fails for simdjson */
// {"+INFINITY", "+Inf", nil}, /* fails for simdjson */
// {"Infinity", "+Inf", nil}, /* fails for simdjson */
// largest float64
{"1.7976931348623157e308", "1.7976931348623157e+308", nil},
{"-1.7976931348623157e308", "-1.7976931348623157e+308", nil},
// next float64 - too large
{"1.7976931348623159e308", "+Inf", strconv.ErrRange},
{"-1.7976931348623159e308", "-Inf", strconv.ErrRange},
// the border is ...158079
// borderline - okay
// {"1.7976931348623158e308", "1.7976931348623157e+308", nil}, /* returns "+Inf" */
// {"-1.7976931348623158e308", "-1.7976931348623157e+308", nil},/* returns "-Inf" */
// borderline - too large
{"1.797693134862315808e308", "+Inf", strconv.ErrRange},
{"-1.797693134862315808e308", "-Inf", strconv.ErrRange},
// a little too large
{"1e308", "1e+308", nil},
{"2e308", "+Inf", strconv.ErrRange},
// {"1e309", "+Inf", strconv.ErrRange}, /* fails for simdjson */
// way too large
// {"1e310", "+Inf", strconv.ErrRange}, /* fails for simdjson */
// {"-1e310", "-Inf", strconv.ErrRange}, /* fails for simdjson */
// {"1e400", "+Inf", strconv.ErrRange}, /* fails for simdjson */
// {"-1e400", "-Inf", strconv.ErrRange}, /* fails for simdjson */
// {"1e400000", "+Inf", strconv.ErrRange}, /* fails for simdjson */
// {"-1e400000", "-Inf", strconv.ErrRange}, /* fails for simdjson */
// denormalized
{"1e-305", "1e-305", nil},
{"1e-306", "1e-306", nil},
{"1e-307", "1e-307", nil},
{"1e-308", "1e-308", nil},
// {"1e-309", "1e-309", nil}, /* fails for simdjson */
// {"1e-310", "1e-310", nil}, /* fails for simdjson */
// {"1e-322", "1e-322", nil}, /* fails for simdjson */
// smallest denormal
// {"5e-324", "5e-324", nil}, /* fails for simdjson */
// {"4e-324", "5e-324", nil}, /* fails for simdjson */
// {"3e-324", "5e-324", nil}, /* fails for simdjson */
// too small
// {"2e-324", "0", nil}, /* fails for simdjson */
// way too small
// {"1e-350", "0", nil}, /* fails for simdjson */
// {"1e-400000", "0", nil}, /* fails for simdjson */
// try to overflow exponent
// {"1e-4294967296", "0", nil}, /* fails for simdjson */
// {"1e+4294967296", "+Inf", strconv.ErrRange}, /* fails for simdjson */
// {"1e-18446744073709551616", "0", nil}, /* fails for simdjson */
// {"1e+18446744073709551616", "+Inf", strconv.ErrRange}, /* fails for simdjson */
// Parse errors
{"1e", "0", strconv.ErrSyntax},
{"1e-", "0", strconv.ErrSyntax},
{".e-1", "0", strconv.ErrSyntax},
// https://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/
// {"2.2250738585072012e-308", "2.2250738585072014e-308", nil}, /* fails for simdjson */
// https://www.exploringbinary.com/php-hangs-on-numeric-value-2-2250738585072011e-308/
// {"2.2250738585072011e-308", "2.225073858507201e-308", nil}, /* fails for simdjson */
// A very large number (initially wrongly parsed by the fast algorithm).
// {"4.630813248087435e+307", "4.630813248087435e+307", nil}, /* fails for simdjson */
// A different kind of very large number.
// {"22.222222222222222", "22.22222222222222", nil}, /* fails for simdjson */
// {"2." + strings.Repeat("2", 4000) + "e+1", "22.22222222222222", nil},
// Exactly halfway between 1 and math.Nextafter(1, 2).
// Round to even (down).
// {"1.00000000000000011102230246251565404236316680908203125", "1", nil}, /* fails for simdjson */
// Slightly lower; still round down.
// {"1.00000000000000011102230246251565404236316680908203124", "1", nil}, /* fails for simdjson */
// Slightly higher; round up.
// {"1.00000000000000011102230246251565404236316680908203126", "1.0000000000000002", nil}, /* fails for simdjson */
// Slightly higher, but you have to read all the way to the end.
// {"1.00000000000000011102230246251565404236316680908203125" + strings.Repeat("0", 10000) + "1", "1.0000000000000002", nil}, /* fails for simdjson */
// Halfway between x := math.Nextafter(1, 2) and math.Nextafter(x, 2)
// Round to even (up).
// {"1.00000000000000033306690738754696212708950042724609375", "1.0000000000000004", nil}, /* fails for simdjson */
// Underscores.
// {"1_23.50_0_0e+1_2", "1.235e+14", nil}, /* fails for simdjson */
{"-_123.5e+12", "0", strconv.ErrSyntax},
{"+_123.5e+12", "0", strconv.ErrSyntax},
{"_123.5e+12", "0", strconv.ErrSyntax},
{"1__23.5e+12", "0", strconv.ErrSyntax},
{"123_.5e+12", "0", strconv.ErrSyntax},
{"123._5e+12", "0", strconv.ErrSyntax},
{"123.5_e+12", "0", strconv.ErrSyntax},
{"123.5__0e+12", "0", strconv.ErrSyntax},
{"123.5e_+12", "0", strconv.ErrSyntax},
{"123.5e+_12", "0", strconv.ErrSyntax},
{"123.5e_-12", "0", strconv.ErrSyntax},
{"123.5e-_12", "0", strconv.ErrSyntax},
{"123.5e+1__2", "0", strconv.ErrSyntax},
{"123.5e+12_", "0", strconv.ErrSyntax},
}
func TestParseString(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// enclose test string in quotes (as validated by stage 1)
buf := []byte(fmt.Sprintf(`"%s"`, tt.str))
dest := make([]byte, 0, len(buf)+32 /* safety margin as parse_string writes full AVX2 words */)
success := parse_string_simd(buf, &dest)
if success != tt.success {
t.Errorf("TestParseString() got = %v, want %v", success, tt.success)
}
if success {
size := len(dest)
if size != len(tt.want) {
t.Errorf("TestParseString() got = %d, want %d", size, len(tt.want))
}
if bytes.Compare(dest[:size], tt.want) != 0 {
t.Errorf("TestParseString() got = %v, want %v", dest[:size], tt.want)
}
}
})
}
}
func TestParseStringValidateOnly(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// enclose test string in quotes (as validated by stage 1)
buf := []byte(fmt.Sprintf(`"%s"`, tt.str))
dst_length := uint64(0)
need_copy := false
l := uint64(len(buf))
success := parse_string_simd_validate_only(buf, &l, &dst_length, &need_copy)
if success != tt.success {
t.Errorf("TestParseString() got = %v, want %v", success, tt.success)
}
if success && !need_copy {
if dst_length != uint64(len(tt.want)) {
t.Errorf("TestParseString() got = %d, want %d", dst_length, len(tt.want))
}
}
})
}
}
func TestParseStringValidateOnlyBeyondBuffer(t *testing.T) {
t.Skip()
buf := []byte(fmt.Sprintf(`"%s`, " "))
dst_length := uint64(0)
need_copy := false
l := uint64(len(buf)) + 32
success := parse_string_simd_validate_only(buf, &l, &dst_length, &need_copy)
if !success {
t.Errorf("TestParseStringValidateOnlyBeyondBuffer() got = %v, want %v", success, false)
}
}
// Benchmarking code for integers
func BenchmarkParseNumber(b *testing.B) {
b.Run("Pos", func(b *testing.B) {
benchmarkParseNumber(b, 1)
})
b.Run("Neg", func(b *testing.B) {
benchmarkParseNumber(b, -1)
})
}
func benchmarkParseNumber(b *testing.B, neg int) {
cases := []benchCase{
{"63bit", 1<<63 - 1},
}
for _, cs := range cases {
b.Run(cs.name, func(b *testing.B) {
s := fmt.Sprintf("%d", cs.num*int64(neg))
s = fmt.Sprintf(`%s:`, s) // append delimiter
found_minus := false
if neg != 0 {
found_minus = true
}
for i := 0; i < b.N; i++ {
_, _, _, i := parse_number_simd([]byte(s), found_minus)
BenchSink += int(i)
}
})
}
}
func BenchmarkParseNumberFloat(b *testing.B) {
for i := 0; i < b.N; i++ {
parse_number_simd([]byte("339.7784:"), false)
}
}
func BenchmarkParseAtof64FloatGolang(b *testing.B) {
for i := 0; i < b.N; i++ {
strconv.ParseFloat("339.7784", 64)
}
}
func BenchmarkParseNumberFloatExp(b *testing.B) {
for i := 0; i < b.N; i++ {
parse_number_simd([]byte("-5.09e75:"), false)
}
}
func BenchmarkParseNumberBig(b *testing.B) {
for i := 0; i < b.N; i++ {
parse_number_simd([]byte("123456789123456789123456789:"), false)
}
}
func BenchmarkParseNumberRandomBits(b *testing.B) {
initAtof()
for i := 0; i < b.N; i++ {
parse_number_simd([]byte(benchmarksRandomBitsSimd[i%1024]), false)
}
}
func BenchmarkParseNumberRandomFloats(b *testing.B) {
initAtof()
for i := 0; i < b.N; i++ {
parse_number_simd([]byte(benchmarksRandomNormalSimd[i%1024]), false)
}
}
func TestVerifyTape(t *testing.T) {
// FIXME: Does not have tapes any more.
for _, tt := range testCases {
t.Run(tt.name, func(t *testing.T) {
ref := loadCompressed(t, tt.name)
pj := internalParsedJson{}
if err := pj.parseMessage(ref); err != nil {
t.Errorf("parseMessage failed: %v\n", err)
return
}
//ctape := bytesToUint64(cbuf)
//testCTapeCtoGoTapeCompare(t, ctape, csbuf, pj)
})
}
}