mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-10 18:25:17 +00:00
621 lines
18 KiB
Go
621 lines
18 KiB
Go
// Copyright 2020 The LevelDB-Go and Pebble Authors. All rights reserved. Use
|
|
// of this source code is governed by a BSD-style license that can be found in
|
|
// the LICENSE file.
|
|
|
|
package manifest
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"math"
|
|
"os"
|
|
"slices"
|
|
"sort"
|
|
"strconv"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/cockroachdb/datadriven"
|
|
"github.com/cockroachdb/pebble/internal/base"
|
|
"github.com/cockroachdb/pebble/internal/testkeys"
|
|
"github.com/cockroachdb/pebble/record"
|
|
"github.com/stretchr/testify/require"
|
|
"golang.org/x/exp/rand"
|
|
)
|
|
|
|
func readManifest(filename string) (*Version, error) {
|
|
f, err := os.Open(filename)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer f.Close()
|
|
rr := record.NewReader(f, 0 /* logNum */)
|
|
var v *Version
|
|
addedByFileNum := make(map[base.FileNum]*FileMetadata)
|
|
for {
|
|
r, err := rr.Next()
|
|
if err == io.EOF {
|
|
break
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var ve VersionEdit
|
|
if err = ve.Decode(r); err != nil {
|
|
return nil, err
|
|
}
|
|
var bve BulkVersionEdit
|
|
bve.AddedByFileNum = addedByFileNum
|
|
if err := bve.Accumulate(&ve); err != nil {
|
|
return nil, err
|
|
}
|
|
if v, err = bve.Apply(v, base.DefaultComparer.Compare, base.DefaultFormatter, 10<<20, 32000, nil, ProhibitSplitUserKeys); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return v, nil
|
|
}
|
|
|
|
func visualizeSublevels(
|
|
s *L0Sublevels, compactionFiles bitSet, otherLevels [][]*FileMetadata,
|
|
) string {
|
|
var buf strings.Builder
|
|
if compactionFiles == nil {
|
|
compactionFiles = newBitSet(s.levelMetadata.Len())
|
|
}
|
|
largestChar := byte('a')
|
|
printLevel := func(files []*FileMetadata, level string, isL0 bool) {
|
|
lastChar := byte('a')
|
|
fmt.Fprintf(&buf, "L%s:", level)
|
|
for i := 0; i < 5-len(level); i++ {
|
|
buf.WriteByte(' ')
|
|
}
|
|
for j, f := range files {
|
|
for lastChar < f.Smallest.UserKey[0] {
|
|
buf.WriteString(" ")
|
|
lastChar++
|
|
}
|
|
buf.WriteByte(f.Smallest.UserKey[0])
|
|
middleChar := byte('-')
|
|
if isL0 {
|
|
if compactionFiles[f.L0Index] {
|
|
middleChar = '+'
|
|
} else if f.IsCompacting() {
|
|
if f.IsIntraL0Compacting {
|
|
middleChar = '^'
|
|
} else {
|
|
middleChar = 'v'
|
|
}
|
|
}
|
|
} else if f.IsCompacting() {
|
|
middleChar = '='
|
|
}
|
|
if largestChar < f.Largest.UserKey[0] {
|
|
largestChar = f.Largest.UserKey[0]
|
|
}
|
|
if f.Smallest.UserKey[0] == f.Largest.UserKey[0] {
|
|
buf.WriteByte(f.Largest.UserKey[0])
|
|
if compactionFiles[f.L0Index] {
|
|
buf.WriteByte('+')
|
|
} else if j < len(files)-1 {
|
|
buf.WriteByte(' ')
|
|
}
|
|
lastChar++
|
|
continue
|
|
}
|
|
buf.WriteByte(middleChar)
|
|
buf.WriteByte(middleChar)
|
|
lastChar++
|
|
for lastChar < f.Largest.UserKey[0] {
|
|
buf.WriteByte(middleChar)
|
|
buf.WriteByte(middleChar)
|
|
buf.WriteByte(middleChar)
|
|
lastChar++
|
|
}
|
|
if f.Largest.IsExclusiveSentinel() &&
|
|
j < len(files)-1 && files[j+1].Smallest.UserKey[0] == f.Largest.UserKey[0] {
|
|
// This case happens where two successive files have
|
|
// matching end/start user keys but where the left-side file
|
|
// has the sentinel key as its end key trailer. In this case
|
|
// we print the sstables as:
|
|
//
|
|
// a------d------g
|
|
//
|
|
continue
|
|
}
|
|
buf.WriteByte(middleChar)
|
|
buf.WriteByte(f.Largest.UserKey[0])
|
|
if j < len(files)-1 {
|
|
buf.WriteByte(' ')
|
|
}
|
|
lastChar++
|
|
}
|
|
fmt.Fprintf(&buf, "\n")
|
|
}
|
|
for i := len(s.levelFiles) - 1; i >= 0; i-- {
|
|
printLevel(s.levelFiles[i], fmt.Sprintf("0.%d", i), true)
|
|
}
|
|
for i := range otherLevels {
|
|
if len(otherLevels[i]) == 0 {
|
|
continue
|
|
}
|
|
printLevel(otherLevels[i], strconv.Itoa(i+1), false)
|
|
}
|
|
buf.WriteString(" ")
|
|
for b := byte('a'); b <= largestChar; b++ {
|
|
buf.WriteByte(b)
|
|
buf.WriteByte(b)
|
|
if b < largestChar {
|
|
buf.WriteByte(' ')
|
|
}
|
|
}
|
|
buf.WriteByte('\n')
|
|
return buf.String()
|
|
}
|
|
|
|
func TestL0Sublevels(t *testing.T) {
|
|
parseMeta := func(s string) (*FileMetadata, error) {
|
|
parts := strings.Split(s, ":")
|
|
if len(parts) != 2 {
|
|
t.Fatalf("malformed table spec: %s", s)
|
|
}
|
|
fileNum, err := strconv.Atoi(strings.TrimSpace(parts[0]))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
fields := strings.Fields(parts[1])
|
|
keyRange := strings.Split(strings.TrimSpace(fields[0]), "-")
|
|
m := (&FileMetadata{}).ExtendPointKeyBounds(
|
|
base.DefaultComparer.Compare,
|
|
base.ParseInternalKey(strings.TrimSpace(keyRange[0])),
|
|
base.ParseInternalKey(strings.TrimSpace(keyRange[1])),
|
|
)
|
|
m.SmallestSeqNum = m.Smallest.SeqNum()
|
|
m.LargestSeqNum = m.Largest.SeqNum()
|
|
if m.Largest.IsExclusiveSentinel() {
|
|
m.LargestSeqNum = m.SmallestSeqNum
|
|
}
|
|
m.FileNum = base.FileNum(fileNum)
|
|
m.Size = uint64(256)
|
|
m.InitPhysicalBacking()
|
|
if len(fields) > 1 {
|
|
for _, field := range fields[1:] {
|
|
parts := strings.Split(field, "=")
|
|
switch parts[0] {
|
|
case "base_compacting":
|
|
m.IsIntraL0Compacting = false
|
|
m.CompactionState = CompactionStateCompacting
|
|
case "intra_l0_compacting":
|
|
m.IsIntraL0Compacting = true
|
|
m.CompactionState = CompactionStateCompacting
|
|
case "compacting":
|
|
m.CompactionState = CompactionStateCompacting
|
|
case "size":
|
|
sizeInt, err := strconv.Atoi(parts[1])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
m.Size = uint64(sizeInt)
|
|
}
|
|
}
|
|
}
|
|
|
|
return m, nil
|
|
}
|
|
|
|
var err error
|
|
var fileMetas [NumLevels][]*FileMetadata
|
|
var explicitSublevels [][]*FileMetadata
|
|
var activeCompactions []L0Compaction
|
|
var sublevels *L0Sublevels
|
|
baseLevel := NumLevels - 1
|
|
|
|
datadriven.RunTest(t, "testdata/l0_sublevels", func(t *testing.T, td *datadriven.TestData) string {
|
|
pickBaseCompaction := false
|
|
level := 0
|
|
addL0FilesOpt := false
|
|
switch td.Cmd {
|
|
case "add-l0-files":
|
|
addL0FilesOpt = true
|
|
level = 0
|
|
fallthrough
|
|
case "define":
|
|
if !addL0FilesOpt {
|
|
fileMetas = [NumLevels][]*FileMetadata{}
|
|
baseLevel = NumLevels - 1
|
|
activeCompactions = nil
|
|
}
|
|
explicitSublevels = [][]*FileMetadata{}
|
|
sublevel := -1
|
|
addedL0Files := make([]*FileMetadata, 0)
|
|
for _, data := range strings.Split(td.Input, "\n") {
|
|
data = strings.TrimSpace(data)
|
|
switch data[:2] {
|
|
case "L0", "L1", "L2", "L3", "L4", "L5", "L6":
|
|
level, err = strconv.Atoi(data[1:2])
|
|
if err != nil {
|
|
return err.Error()
|
|
}
|
|
if level == 0 && len(data) > 3 {
|
|
// Sublevel was specified.
|
|
sublevel, err = strconv.Atoi(data[3:])
|
|
if err != nil {
|
|
return err.Error()
|
|
}
|
|
} else {
|
|
sublevel = -1
|
|
}
|
|
default:
|
|
meta, err := parseMeta(data)
|
|
if err != nil {
|
|
return err.Error()
|
|
}
|
|
if level != 0 && level < baseLevel {
|
|
baseLevel = level
|
|
}
|
|
fileMetas[level] = append(fileMetas[level], meta)
|
|
if level == 0 {
|
|
addedL0Files = append(addedL0Files, meta)
|
|
}
|
|
if sublevel != -1 {
|
|
for len(explicitSublevels) <= sublevel {
|
|
explicitSublevels = append(explicitSublevels, []*FileMetadata{})
|
|
}
|
|
explicitSublevels[sublevel] = append(explicitSublevels[sublevel], meta)
|
|
}
|
|
}
|
|
}
|
|
|
|
flushSplitMaxBytes := 64
|
|
initialize := true
|
|
for _, arg := range td.CmdArgs {
|
|
switch arg.Key {
|
|
case "flush_split_max_bytes":
|
|
flushSplitMaxBytes, err = strconv.Atoi(arg.Vals[0])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
case "no_initialize":
|
|
// This case is for use with explicitly-specified sublevels
|
|
// only.
|
|
initialize = false
|
|
}
|
|
}
|
|
SortBySeqNum(fileMetas[0])
|
|
for i := 1; i < NumLevels; i++ {
|
|
SortBySmallest(fileMetas[i], base.DefaultComparer.Compare)
|
|
}
|
|
|
|
levelMetadata := makeLevelMetadata(base.DefaultComparer.Compare, 0, fileMetas[0])
|
|
if initialize {
|
|
if addL0FilesOpt {
|
|
SortBySeqNum(addedL0Files)
|
|
sublevels, err = sublevels.AddL0Files(addedL0Files, int64(flushSplitMaxBytes), &levelMetadata)
|
|
// Check if the output matches a full initialization.
|
|
sublevels2, _ := NewL0Sublevels(&levelMetadata, base.DefaultComparer.Compare, base.DefaultFormatter, int64(flushSplitMaxBytes))
|
|
if sublevels != nil && sublevels2 != nil {
|
|
require.Equal(t, sublevels.flushSplitUserKeys, sublevels2.flushSplitUserKeys)
|
|
require.Equal(t, sublevels.levelFiles, sublevels2.levelFiles)
|
|
}
|
|
} else {
|
|
sublevels, err = NewL0Sublevels(
|
|
&levelMetadata,
|
|
base.DefaultComparer.Compare,
|
|
base.DefaultFormatter,
|
|
int64(flushSplitMaxBytes))
|
|
}
|
|
if err != nil {
|
|
return err.Error()
|
|
}
|
|
sublevels.InitCompactingFileInfo(nil)
|
|
} else {
|
|
// This case is for use with explicitly-specified sublevels
|
|
// only.
|
|
sublevels = &L0Sublevels{
|
|
levelFiles: explicitSublevels,
|
|
cmp: base.DefaultComparer.Compare,
|
|
formatKey: base.DefaultFormatter,
|
|
levelMetadata: &levelMetadata,
|
|
}
|
|
for _, files := range explicitSublevels {
|
|
sublevels.Levels = append(sublevels.Levels, NewLevelSliceSpecificOrder(files))
|
|
}
|
|
}
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
var builder strings.Builder
|
|
builder.WriteString(sublevels.describe(true))
|
|
builder.WriteString(visualizeSublevels(sublevels, nil, fileMetas[1:]))
|
|
return builder.String()
|
|
case "pick-base-compaction":
|
|
pickBaseCompaction = true
|
|
fallthrough
|
|
case "pick-intra-l0-compaction":
|
|
minCompactionDepth := 3
|
|
earliestUnflushedSeqNum := uint64(math.MaxUint64)
|
|
for _, arg := range td.CmdArgs {
|
|
switch arg.Key {
|
|
case "min_depth":
|
|
minCompactionDepth, err = strconv.Atoi(arg.Vals[0])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
case "earliest_unflushed_seqnum":
|
|
eusnInt, err := strconv.Atoi(arg.Vals[0])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
earliestUnflushedSeqNum = uint64(eusnInt)
|
|
}
|
|
}
|
|
|
|
var lcf *L0CompactionFiles
|
|
if pickBaseCompaction {
|
|
baseFiles := NewLevelSliceKeySorted(base.DefaultComparer.Compare, fileMetas[baseLevel])
|
|
lcf, err = sublevels.PickBaseCompaction(minCompactionDepth, baseFiles)
|
|
if err == nil && lcf != nil {
|
|
// Try to extend the base compaction into a more rectangular
|
|
// shape, using the smallest/largest keys of the files before
|
|
// and after overlapping base files. This mimics the logic
|
|
// the compactor is expected to implement.
|
|
baseFiles := fileMetas[baseLevel]
|
|
firstFile := sort.Search(len(baseFiles), func(i int) bool {
|
|
return sublevels.cmp(baseFiles[i].Largest.UserKey, sublevels.orderedIntervals[lcf.minIntervalIndex].startKey.key) >= 0
|
|
})
|
|
lastFile := sort.Search(len(baseFiles), func(i int) bool {
|
|
return sublevels.cmp(baseFiles[i].Smallest.UserKey, sublevels.orderedIntervals[lcf.maxIntervalIndex+1].startKey.key) >= 0
|
|
})
|
|
startKey := base.InvalidInternalKey
|
|
endKey := base.InvalidInternalKey
|
|
if firstFile > 0 {
|
|
startKey = baseFiles[firstFile-1].Largest
|
|
}
|
|
if lastFile < len(baseFiles) {
|
|
endKey = baseFiles[lastFile].Smallest
|
|
}
|
|
sublevels.ExtendL0ForBaseCompactionTo(
|
|
startKey,
|
|
endKey,
|
|
lcf)
|
|
}
|
|
} else {
|
|
lcf, err = sublevels.PickIntraL0Compaction(earliestUnflushedSeqNum, minCompactionDepth)
|
|
}
|
|
if err != nil {
|
|
return fmt.Sprintf("error: %s", err.Error())
|
|
}
|
|
if lcf == nil {
|
|
return "no compaction picked"
|
|
}
|
|
var builder strings.Builder
|
|
builder.WriteString(fmt.Sprintf("compaction picked with stack depth reduction %d\n", lcf.seedIntervalStackDepthReduction))
|
|
for i, file := range lcf.Files {
|
|
builder.WriteString(file.FileNum.String())
|
|
if i < len(lcf.Files)-1 {
|
|
builder.WriteByte(',')
|
|
}
|
|
}
|
|
startKey := sublevels.orderedIntervals[lcf.seedInterval].startKey
|
|
endKey := sublevels.orderedIntervals[lcf.seedInterval+1].startKey
|
|
builder.WriteString(fmt.Sprintf("\nseed interval: %s-%s\n", startKey.key, endKey.key))
|
|
builder.WriteString(visualizeSublevels(sublevels, lcf.FilesIncluded, fileMetas[1:]))
|
|
|
|
return builder.String()
|
|
case "read-amp":
|
|
return strconv.Itoa(sublevels.ReadAmplification())
|
|
case "in-use-key-ranges":
|
|
var buf bytes.Buffer
|
|
for _, data := range strings.Split(strings.TrimSpace(td.Input), "\n") {
|
|
keyRange := strings.Split(strings.TrimSpace(data), "-")
|
|
smallest := []byte(strings.TrimSpace(keyRange[0]))
|
|
largest := []byte(strings.TrimSpace(keyRange[1]))
|
|
|
|
keyRanges := sublevels.InUseKeyRanges(smallest, largest)
|
|
for i, r := range keyRanges {
|
|
fmt.Fprintf(&buf, "%s-%s", sublevels.formatKey(r.Start), sublevels.formatKey(r.End))
|
|
if i < len(keyRanges)-1 {
|
|
fmt.Fprint(&buf, ", ")
|
|
}
|
|
}
|
|
if len(keyRanges) == 0 {
|
|
fmt.Fprint(&buf, ".")
|
|
}
|
|
fmt.Fprintln(&buf)
|
|
}
|
|
return buf.String()
|
|
case "flush-split-keys":
|
|
var builder strings.Builder
|
|
builder.WriteString("flush user split keys: ")
|
|
flushSplitKeys := sublevels.FlushSplitKeys()
|
|
for i, key := range flushSplitKeys {
|
|
builder.Write(key)
|
|
if i < len(flushSplitKeys)-1 {
|
|
builder.WriteString(", ")
|
|
}
|
|
}
|
|
if len(flushSplitKeys) == 0 {
|
|
builder.WriteString("none")
|
|
}
|
|
return builder.String()
|
|
case "max-depth-after-ongoing-compactions":
|
|
return strconv.Itoa(sublevels.MaxDepthAfterOngoingCompactions())
|
|
case "l0-check-ordering":
|
|
for sublevel, files := range sublevels.levelFiles {
|
|
slice := NewLevelSliceSpecificOrder(files)
|
|
err := CheckOrdering(base.DefaultComparer.Compare, base.DefaultFormatter,
|
|
L0Sublevel(sublevel), slice.Iter(), ProhibitSplitUserKeys)
|
|
if err != nil {
|
|
return err.Error()
|
|
}
|
|
}
|
|
return "OK"
|
|
case "update-state-for-compaction":
|
|
var fileNums []base.FileNum
|
|
for _, arg := range td.CmdArgs {
|
|
switch arg.Key {
|
|
case "files":
|
|
for _, val := range arg.Vals {
|
|
fileNum, err := strconv.ParseUint(val, 10, 64)
|
|
if err != nil {
|
|
return err.Error()
|
|
}
|
|
fileNums = append(fileNums, base.FileNum(fileNum))
|
|
}
|
|
}
|
|
}
|
|
files := make([]*FileMetadata, 0, len(fileNums))
|
|
for _, num := range fileNums {
|
|
for _, f := range fileMetas[0] {
|
|
if f.FileNum == num {
|
|
f.CompactionState = CompactionStateCompacting
|
|
files = append(files, f)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
slice := NewLevelSliceSeqSorted(files)
|
|
sm, la := KeyRange(base.DefaultComparer.Compare, slice.Iter())
|
|
activeCompactions = append(activeCompactions, L0Compaction{Smallest: sm, Largest: la})
|
|
if err := sublevels.UpdateStateForStartedCompaction([]LevelSlice{slice}, true); err != nil {
|
|
return err.Error()
|
|
}
|
|
return "OK"
|
|
case "describe":
|
|
var builder strings.Builder
|
|
builder.WriteString(sublevels.describe(true))
|
|
builder.WriteString(visualizeSublevels(sublevels, nil, fileMetas[1:]))
|
|
return builder.String()
|
|
}
|
|
return fmt.Sprintf("unrecognized command: %s", td.Cmd)
|
|
})
|
|
}
|
|
|
|
func TestAddL0FilesEquivalence(t *testing.T) {
|
|
seed := uint64(time.Now().UnixNano())
|
|
rng := rand.New(rand.NewSource(seed))
|
|
t.Logf("seed: %d", seed)
|
|
|
|
var inUseKeys [][]byte
|
|
const keyReusePct = 0.15
|
|
var fileMetas []*FileMetadata
|
|
var s, s2 *L0Sublevels
|
|
keySpace := testkeys.Alpha(8)
|
|
|
|
flushSplitMaxBytes := rng.Int63n(1 << 20)
|
|
|
|
// The outer loop runs once for each version edit. The inner loop(s) run
|
|
// once for each file, or each file bound.
|
|
for i := 0; i < 100; i++ {
|
|
var filesToAdd []*FileMetadata
|
|
numFiles := 1 + rng.Intn(9)
|
|
keys := make([][]byte, 0, 2*numFiles)
|
|
for j := 0; j < 2*numFiles; j++ {
|
|
if rng.Float64() <= keyReusePct && len(inUseKeys) > 0 {
|
|
keys = append(keys, inUseKeys[rng.Intn(len(inUseKeys))])
|
|
} else {
|
|
newKey := testkeys.Key(keySpace, rng.Int63n(keySpace.Count()))
|
|
inUseKeys = append(inUseKeys, newKey)
|
|
keys = append(keys, newKey)
|
|
}
|
|
}
|
|
slices.SortFunc(keys, bytes.Compare)
|
|
for j := 0; j < numFiles; j++ {
|
|
startKey := keys[j*2]
|
|
endKey := keys[j*2+1]
|
|
if bytes.Equal(startKey, endKey) {
|
|
continue
|
|
}
|
|
meta := (&FileMetadata{
|
|
FileNum: base.FileNum(i*10 + j + 1),
|
|
Size: rng.Uint64n(1 << 20),
|
|
SmallestSeqNum: uint64(2*i + 1),
|
|
LargestSeqNum: uint64(2*i + 2),
|
|
}).ExtendPointKeyBounds(
|
|
base.DefaultComparer.Compare,
|
|
base.MakeInternalKey(startKey, uint64(2*i+1), base.InternalKeyKindSet),
|
|
base.MakeRangeDeleteSentinelKey(endKey),
|
|
)
|
|
meta.InitPhysicalBacking()
|
|
fileMetas = append(fileMetas, meta)
|
|
filesToAdd = append(filesToAdd, meta)
|
|
}
|
|
if len(filesToAdd) == 0 {
|
|
continue
|
|
}
|
|
|
|
levelMetadata := makeLevelMetadata(testkeys.Comparer.Compare, 0, fileMetas)
|
|
var err error
|
|
|
|
if s2 == nil {
|
|
s2, err = NewL0Sublevels(&levelMetadata, testkeys.Comparer.Compare, testkeys.Comparer.FormatKey, flushSplitMaxBytes)
|
|
require.NoError(t, err)
|
|
} else {
|
|
// AddL0Files relies on the indices in FileMetadatas pointing to that of
|
|
// the previous L0Sublevels. So it must be called before NewL0Sublevels;
|
|
// calling it the other way around results in out-of-bounds panics.
|
|
SortBySeqNum(filesToAdd)
|
|
s2, err = s2.AddL0Files(filesToAdd, flushSplitMaxBytes, &levelMetadata)
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
s, err = NewL0Sublevels(&levelMetadata, testkeys.Comparer.Compare, testkeys.Comparer.FormatKey, flushSplitMaxBytes)
|
|
require.NoError(t, err)
|
|
|
|
// Check for equivalence.
|
|
require.Equal(t, s.flushSplitUserKeys, s2.flushSplitUserKeys)
|
|
require.Equal(t, s.orderedIntervals, s2.orderedIntervals)
|
|
require.Equal(t, s.levelFiles, s2.levelFiles)
|
|
}
|
|
}
|
|
|
|
func BenchmarkManifestApplyWithL0Sublevels(b *testing.B) {
|
|
b.ResetTimer()
|
|
for n := 0; n < b.N; n++ {
|
|
v, err := readManifest("testdata/MANIFEST_import")
|
|
require.NotNil(b, v)
|
|
require.NoError(b, err)
|
|
}
|
|
}
|
|
|
|
func BenchmarkL0SublevelsInit(b *testing.B) {
|
|
v, err := readManifest("testdata/MANIFEST_import")
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
b.ResetTimer()
|
|
for n := 0; n < b.N; n++ {
|
|
sl, err := NewL0Sublevels(&v.Levels[0],
|
|
base.DefaultComparer.Compare, base.DefaultFormatter, 5<<20)
|
|
require.NoError(b, err)
|
|
if sl == nil {
|
|
b.Fatal("expected non-nil L0Sublevels to be generated")
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkL0SublevelsInitAndPick(b *testing.B) {
|
|
v, err := readManifest("testdata/MANIFEST_import")
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
b.ResetTimer()
|
|
for n := 0; n < b.N; n++ {
|
|
sl, err := NewL0Sublevels(&v.Levels[0],
|
|
base.DefaultComparer.Compare, base.DefaultFormatter, 5<<20)
|
|
require.NoError(b, err)
|
|
if sl == nil {
|
|
b.Fatal("expected non-nil L0Sublevels to be generated")
|
|
}
|
|
c, err := sl.PickBaseCompaction(2, LevelSlice{})
|
|
require.NoError(b, err)
|
|
if c == nil {
|
|
b.Fatal("expected non-nil compaction to be generated")
|
|
}
|
|
}
|
|
}
|