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Diffstat (limited to 'tools/go_marshal/test/benchmark_test.go')
-rw-r--r--tools/go_marshal/test/benchmark_test.go178
1 files changed, 0 insertions, 178 deletions
diff --git a/tools/go_marshal/test/benchmark_test.go b/tools/go_marshal/test/benchmark_test.go
deleted file mode 100644
index e12403741..000000000
--- a/tools/go_marshal/test/benchmark_test.go
+++ /dev/null
@@ -1,178 +0,0 @@
-// Copyright 2019 The gVisor 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 benchmark_test
-
-import (
- "bytes"
- encbin "encoding/binary"
- "fmt"
- "reflect"
- "testing"
-
- "gvisor.dev/gvisor/pkg/binary"
- "gvisor.dev/gvisor/pkg/usermem"
- "gvisor.dev/gvisor/tools/go_marshal/analysis"
- test "gvisor.dev/gvisor/tools/go_marshal/test"
-)
-
-// Marshalling using the standard encoding/binary package.
-func BenchmarkEncodingBinary(b *testing.B) {
- var s1, s2 test.Stat
- analysis.RandomizeValue(&s1)
-
- size := encbin.Size(&s1)
-
- b.ResetTimer()
-
- for n := 0; n < b.N; n++ {
- buf := bytes.NewBuffer(make([]byte, size))
- buf.Reset()
- if err := encbin.Write(buf, usermem.ByteOrder, &s1); err != nil {
- b.Error("Write:", err)
- }
- if err := encbin.Read(buf, usermem.ByteOrder, &s2); err != nil {
- b.Error("Read:", err)
- }
- }
-
- b.StopTimer()
-
- // Sanity check, make sure the values were preserved.
- if !reflect.DeepEqual(s1, s2) {
- panic(fmt.Sprintf("Data corruption across marshal/unmarshal cycle:\nBefore: %+v\nAfter: %+v\n", s1, s2))
- }
-}
-
-// Marshalling using the sentry's binary.Marshal.
-func BenchmarkBinary(b *testing.B) {
- var s1, s2 test.Stat
- analysis.RandomizeValue(&s1)
-
- size := binary.Size(s1)
-
- b.ResetTimer()
-
- for n := 0; n < b.N; n++ {
- buf := make([]byte, 0, size)
- buf = binary.Marshal(buf, usermem.ByteOrder, &s1)
- binary.Unmarshal(buf, usermem.ByteOrder, &s2)
- }
-
- b.StopTimer()
-
- // Sanity check, make sure the values were preserved.
- if !reflect.DeepEqual(s1, s2) {
- panic(fmt.Sprintf("Data corruption across marshal/unmarshal cycle:\nBefore: %+v\nAfter: %+v\n", s1, s2))
- }
-}
-
-// Marshalling field-by-field with manually-written code.
-func BenchmarkMarshalManual(b *testing.B) {
- var s1, s2 test.Stat
- analysis.RandomizeValue(&s1)
-
- b.ResetTimer()
-
- for n := 0; n < b.N; n++ {
- buf := make([]byte, 0, s1.SizeBytes())
-
- // Marshal
- buf = binary.AppendUint64(buf, usermem.ByteOrder, s1.Dev)
- buf = binary.AppendUint64(buf, usermem.ByteOrder, s1.Ino)
- buf = binary.AppendUint64(buf, usermem.ByteOrder, s1.Nlink)
- buf = binary.AppendUint32(buf, usermem.ByteOrder, s1.Mode)
- buf = binary.AppendUint32(buf, usermem.ByteOrder, s1.UID)
- buf = binary.AppendUint32(buf, usermem.ByteOrder, s1.GID)
- buf = binary.AppendUint32(buf, usermem.ByteOrder, 0)
- buf = binary.AppendUint64(buf, usermem.ByteOrder, s1.Rdev)
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.Size))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.Blksize))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.Blocks))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.ATime.Sec))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.ATime.Nsec))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.MTime.Sec))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.MTime.Nsec))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.CTime.Sec))
- buf = binary.AppendUint64(buf, usermem.ByteOrder, uint64(s1.CTime.Nsec))
-
- // Unmarshal
- s2.Dev = usermem.ByteOrder.Uint64(buf[0:8])
- s2.Ino = usermem.ByteOrder.Uint64(buf[8:16])
- s2.Nlink = usermem.ByteOrder.Uint64(buf[16:24])
- s2.Mode = usermem.ByteOrder.Uint32(buf[24:28])
- s2.UID = usermem.ByteOrder.Uint32(buf[28:32])
- s2.GID = usermem.ByteOrder.Uint32(buf[32:36])
- // Padding: buf[36:40]
- s2.Rdev = usermem.ByteOrder.Uint64(buf[40:48])
- s2.Size = int64(usermem.ByteOrder.Uint64(buf[48:56]))
- s2.Blksize = int64(usermem.ByteOrder.Uint64(buf[56:64]))
- s2.Blocks = int64(usermem.ByteOrder.Uint64(buf[64:72]))
- s2.ATime.Sec = int64(usermem.ByteOrder.Uint64(buf[72:80]))
- s2.ATime.Nsec = int64(usermem.ByteOrder.Uint64(buf[80:88]))
- s2.MTime.Sec = int64(usermem.ByteOrder.Uint64(buf[88:96]))
- s2.MTime.Nsec = int64(usermem.ByteOrder.Uint64(buf[96:104]))
- s2.CTime.Sec = int64(usermem.ByteOrder.Uint64(buf[104:112]))
- s2.CTime.Nsec = int64(usermem.ByteOrder.Uint64(buf[112:120]))
- }
-
- b.StopTimer()
-
- // Sanity check, make sure the values were preserved.
- if !reflect.DeepEqual(s1, s2) {
- panic(fmt.Sprintf("Data corruption across marshal/unmarshal cycle:\nBefore: %+v\nAfter: %+v\n", s1, s2))
- }
-}
-
-// Marshalling with the go_marshal safe API.
-func BenchmarkGoMarshalSafe(b *testing.B) {
- var s1, s2 test.Stat
- analysis.RandomizeValue(&s1)
-
- b.ResetTimer()
-
- for n := 0; n < b.N; n++ {
- buf := make([]byte, s1.SizeBytes())
- s1.MarshalBytes(buf)
- s2.UnmarshalBytes(buf)
- }
-
- b.StopTimer()
-
- // Sanity check, make sure the values were preserved.
- if !reflect.DeepEqual(s1, s2) {
- panic(fmt.Sprintf("Data corruption across marshal/unmarshal cycle:\nBefore: %+v\nAfter: %+v\n", s1, s2))
- }
-}
-
-// Marshalling with the go_marshal unsafe API.
-func BenchmarkGoMarshalUnsafe(b *testing.B) {
- var s1, s2 test.Stat
- analysis.RandomizeValue(&s1)
-
- b.ResetTimer()
-
- for n := 0; n < b.N; n++ {
- buf := make([]byte, s1.SizeBytes())
- s1.MarshalUnsafe(buf)
- s2.UnmarshalUnsafe(buf)
- }
-
- b.StopTimer()
-
- // Sanity check, make sure the values were preserved.
- if !reflect.DeepEqual(s1, s2) {
- panic(fmt.Sprintf("Data corruption across marshal/unmarshal cycle:\nBefore: %+v\nAfter: %+v\n", s1, s2))
- }
-}