frostfs-sdk-go/object/transformer/transformer_test.go

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package transformer
import (
"context"
"crypto/rand"
"crypto/sha256"
"testing"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/version"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/stretchr/testify/require"
)
func TestTransformer(t *testing.T) {
const maxSize = 100
tt := new(testTarget)
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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target, pk := newPayloadSizeLimiter(maxSize, 0, func() ObjectWriter { return tt })
cnr := cidtest.ID()
hdr := newObject(cnr)
var owner user.ID
user.IDFromKey(&owner, pk.PrivateKey.PublicKey)
hdr.SetOwnerID(owner)
expectedPayload := make([]byte, maxSize*2+maxSize/2)
_, _ = rand.Read(expectedPayload)
ids := writeObject(t, context.Background(), target, hdr, expectedPayload)
require.Equal(t, 4, len(tt.objects)) // 3 parts + linking object
var actualPayload []byte
for i := range tt.objects {
childCnr, ok := tt.objects[i].ContainerID()
require.True(t, ok)
require.Equal(t, cnr, childCnr)
require.Equal(t, objectSDK.TypeRegular, tt.objects[i].Type())
require.Equal(t, owner, tt.objects[i].OwnerID())
payload := tt.objects[i].Payload()
require.EqualValues(t, tt.objects[i].PayloadSize(), len(payload))
actualPayload = append(actualPayload, payload...)
if len(payload) != 0 {
cs, ok := tt.objects[i].PayloadChecksum()
require.True(t, ok)
h := sha256.Sum256(payload)
require.Equal(t, h[:], cs.Value())
}
require.True(t, tt.objects[i].VerifyIDSignature())
switch i {
case 0, 1:
require.EqualValues(t, maxSize, len(payload))
require.Nil(t, tt.objects[i].Parent())
case 2:
require.EqualValues(t, maxSize/2, len(payload))
parent := tt.objects[i].Parent()
require.NotNil(t, parent)
require.Nil(t, parent.SplitID())
require.True(t, parent.VerifyIDSignature())
case 3:
parID, ok := tt.objects[i].ParentID()
require.True(t, ok)
require.Equal(t, ids.ParentID, &parID)
children := tt.objects[i].Children()
for j := range i {
id, ok := tt.objects[j].ID()
require.True(t, ok)
require.Equal(t, id, children[j])
}
}
}
require.Equal(t, expectedPayload, actualPayload)
t.Run("parent checksum", func(t *testing.T) {
cs, ok := ids.ParentHeader.PayloadChecksum()
require.True(t, ok)
h := sha256.Sum256(expectedPayload)
require.Equal(t, h[:], cs.Value())
})
}
func newObject(cnr cid.ID) *objectSDK.Object {
ver := version.Current()
hdr := objectSDK.New()
hdr.SetContainerID(cnr)
hdr.SetType(objectSDK.TypeRegular)
hdr.SetVersion(&ver)
return hdr
}
func writeObject(t *testing.T, ctx context.Context, target ChunkedObjectWriter, header *objectSDK.Object, payload []byte) *AccessIdentifiers {
require.NoError(t, target.WriteHeader(ctx, header))
_, err := target.Write(ctx, payload)
require.NoError(t, err)
ids, err := target.Close(ctx)
require.NoError(t, err)
return ids
}
func BenchmarkTransformer(b *testing.B) {
hdr := newObject(cidtest.ID())
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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const (
// bufferSize is taken from https://git.frostfs.info/TrueCloudLab/frostfs-sdk-go/src/commit/670619d2426fee233a37efe21a0471989b16a4fc/pool/pool.go#L1825
bufferSize = 3 * 1024 * 1024
smallSize = 8 * 1024
bigSize = 64 * 1024 * 1024 * 9 / 2 // 4.5 parts
)
b.Run("small", func(b *testing.B) {
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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b.Run("no size hint", func(b *testing.B) {
benchmarkTransformer(b, hdr, smallSize, 0, 0)
})
b.Run("no size hint, with buffer", func(b *testing.B) {
benchmarkTransformer(b, hdr, smallSize, 0, bufferSize)
})
b.Run("with size hint, with buffer", func(b *testing.B) {
benchmarkTransformer(b, hdr, smallSize, smallSize, bufferSize)
})
})
b.Run("big", func(b *testing.B) {
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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b.Run("no size hint", func(b *testing.B) {
benchmarkTransformer(b, hdr, bigSize, 0, 0)
})
b.Run("no size hint, with buffer", func(b *testing.B) {
benchmarkTransformer(b, hdr, bigSize, 0, bufferSize)
})
b.Run("with size hint, with buffer", func(b *testing.B) {
benchmarkTransformer(b, hdr, bigSize, bigSize, bufferSize)
})
})
}
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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func benchmarkTransformer(b *testing.B, header *objectSDK.Object, payloadSize, sizeHint, bufferSize int) {
const maxSize = 64 * 1024 * 1024
payload := make([]byte, payloadSize)
ctx := context.Background()
b.ReportAllocs()
b.ResetTimer()
for range b.N {
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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f, _ := newPayloadSizeLimiter(maxSize, uint64(sizeHint), func() ObjectWriter { return benchTarget{} })
if err := f.WriteHeader(ctx, header); err != nil {
b.Fatalf("write header: %v", err)
}
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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if bufferSize == 0 {
if _, err := f.Write(ctx, payload); err != nil {
b.Fatalf("write: %v", err)
}
} else {
j := 0
for ; j+bufferSize < payloadSize; j += bufferSize {
if _, err := f.Write(ctx, payload[j:j+bufferSize]); err != nil {
b.Fatalf("write: %v", err)
}
}
if _, err := f.Write(ctx, payload[j:payloadSize]); err != nil {
b.Fatalf("write: %v", err)
}
}
if _, err := f.Close(ctx); err != nil {
b.Fatalf("close: %v", err)
}
}
}
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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func newPayloadSizeLimiter(maxSize uint64, sizeHint uint64, nextTarget TargetInitializer) (ChunkedObjectWriter, *keys.PrivateKey) {
p, err := keys.NewPrivateKey()
if err != nil {
panic(err)
}
return NewPayloadSizeLimiter(Params{
Key: &p.PrivateKey,
NextTargetInit: nextTarget,
NetworkState: dummyEpochSource(123),
MaxSize: maxSize,
[#188] transformer: Allow to provide size hint For big objects with known size we can optimize allocation patterns by providing size hint. As with any hint, it does not affect transformer functionality: slices with capacity > MaxSize are never allocated. ``` goos: linux goarch: amd64 pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz │ out │ │ sec/op │ Transformer/small/no_size_hint-8 65.44µ ± 3% Transformer/small/no_size_hint,_with_buffer-8 64.24µ ± 5% Transformer/small/with_size_hint,_with_buffer-8 58.70µ ± 5% Transformer/big/no_size_hint-8 367.8m ± 3% Transformer/big/no_size_hint,_with_buffer-8 562.7m ± 0% Transformer/big/with_size_hint,_with_buffer-8 385.6m ± 7% geomean 5.197m │ out │ │ B/op │ Transformer/small/no_size_hint-8 13.40Ki ± 0% Transformer/small/no_size_hint,_with_buffer-8 13.40Ki ± 0% Transformer/small/with_size_hint,_with_buffer-8 13.39Ki ± 0% Transformer/big/no_size_hint-8 288.0Mi ± 0% Transformer/big/no_size_hint,_with_buffer-8 1.390Gi ± 0% Transformer/big/with_size_hint,_with_buffer-8 288.0Mi ± 0% geomean 2.533Mi │ out │ │ allocs/op │ Transformer/small/no_size_hint-8 92.00 ± 0% Transformer/small/no_size_hint,_with_buffer-8 92.00 ± 0% Transformer/small/with_size_hint,_with_buffer-8 92.00 ± 0% Transformer/big/no_size_hint-8 546.5 ± 0% Transformer/big/no_size_hint,_with_buffer-8 607.5 ± 0% Transformer/big/with_size_hint,_with_buffer-8 545.5 ± 0% geomean 228.1 ``` Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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SizeHint: sizeHint,
WithoutHomomorphicHash: true,
}), p
}
type dummyEpochSource uint64
func (s dummyEpochSource) CurrentEpoch() uint64 {
return uint64(s)
}
type benchTarget struct{}
func (benchTarget) WriteObject(context.Context, *objectSDK.Object) error {
return nil
}
type testTarget struct {
objects []*objectSDK.Object
}
func (tt *testTarget) WriteObject(_ context.Context, o *objectSDK.Object) error {
tt.objects = append(tt.objects, o)
return nil // AccessIdentifiers should not be used.
}