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filler.go
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package tests
import (
"fmt"
"github.com/mailcourses/technopark-dbms-forum/generated/client"
"github.com/mailcourses/technopark-dbms-forum/generated/client/operations"
"github.com/mailcourses/technopark-dbms-forum/generated/models"
"math/rand"
"net/url"
"sync"
"sync/atomic"
"time"
)
type PerfConfig struct {
UserCount int
ForumCount int
ThreadCount int
PostCount int
PostBatch int
VoteCount int
Validate float32
}
func NewPerfConfig() *PerfConfig {
return &PerfConfig{
UserCount: 1000,
ForumCount: 20,
ThreadCount: 10000,
PostCount: 1500000,
PostBatch: 100,
VoteCount: 100000,
Validate: 1.0,
}
}
func FillUsers(perf *Perf, parallel int, timeout time.Time, count int) {
var need int32 = int32(count)
c := perf.c
data := perf.data
// spawn four worker goroutines
var wg sync.WaitGroup
for i := 0; i < parallel; i++ {
wg.Add(1)
go func() {
f := NewFactory()
for atomic.AddInt32(&need, -1) >= 0 {
user := f.CreateUser(c, nil)
data.AddUser(&PUser{
AboutHash: Hash(user.About),
Email: user.Email,
FullnameHash: Hash(user.Fullname),
Nickname: user.Nickname,
})
}
wg.Done()
}()
}
// wait for the workers to finish
waitWaitGroup(&wg, timeout, count, &need)
}
func FillThreads(perf *Perf, parallel int, timeout time.Time, count int) {
var need int32 = int32(count)
c := perf.c
data := perf.data
// spawn four worker goroutines
var wg sync.WaitGroup
for i := 0; i < parallel; i++ {
wg.Add(1)
go func() {
f := NewFactory()
for atomic.AddInt32(&need, -1) >= 0 {
author := data.GetUser(-1)
forum := data.GetForum(-1)
thread := f.RandomThread()
if rand.Intn(100) >= 25 {
thread.Slug = ""
}
thread.Author = author.Nickname
thread.Forum = forum.Slug
thread = f.CreateThread(c, thread, nil, nil)
data.AddThread(&PThread{
ID: thread.ID,
Slug: thread.Slug,
Author: author,
Forum: forum,
Voices: map[*PUser]int32{},
MessageHash: Hash(thread.Message),
TitleHash: Hash(thread.Title),
Created: *thread.Created,
})
}
wg.Done()
}()
}
// wait for the workers to finish
waitWaitGroup(&wg, timeout, count, &need)
}
func FillPosts(perf *Perf, parallel int, timeout time.Time, count int, batchSize int) {
var need int32 = int32(count)
c := perf.c
data := perf.data
// spawn four worker goroutines
var wg sync.WaitGroup
for i := 0; i < parallel; i++ {
wg.Add(1)
go func() {
f := NewFactory()
for atomic.AddInt32(&need, -int32(batchSize)) >= 0 {
offset := float64(int32(count)-atomic.LoadInt32(&need)) / float64(count)
batch := make([]*models.Post, 0, batchSize)
thread := data.GetThread(-1, POST_POWER, offset)
thread.mutex.Lock() // todo: Потом исправить
parents := data.GetThreadPostsFlat(thread)
for j := 0; j < batchSize; j++ {
var parent *PPost
if (len(parents) > 0) && (rand.Intn(4) == 0) {
parent = parents[rand.Intn(len(parents))]
}
post := f.RandomPost()
post.Author = data.GetUser(-1).Nickname
post.Thread = thread.ID
if parent != nil {
post.Parent = parent.ID
}
batch = append(batch, post)
}
for _, post := range f.CreatePosts(c, batch, nil) {
data.AddPost(&PPost{
ID: post.ID,
Author: data.GetUserByNickname(post.Author),
Thread: thread,
Parent: data.GetPostById(post.Parent),
Created: *post.Created,
IsEdited: false,
MessageHash: Hash(post.Message),
})
}
thread.mutex.Unlock()
}
wg.Done()
}()
}
// wait for the workers to finish
waitWaitGroup(&wg, timeout, count, &need)
}
func VoteThreads(perf *Perf, parallel int, timeout time.Time, count int) {
var need int32 = int32(count)
c := perf.c
data := perf.data
// spawn four worker goroutines
var wg sync.WaitGroup
for i := 0; i < parallel; i++ {
wg.Add(1)
go func() {
for atomic.AddInt32(&need, -1) >= 0 {
user := data.GetUser(-1)
thread := data.GetThread(-1, 1, 0.5)
thread.mutex.Lock() // todo: Потом исправить
old_voice := thread.Voices[user]
var new_voice int32
if old_voice != 0 {
new_voice = -old_voice
} else if rand.Intn(8) < 5 {
new_voice = 1
} else {
new_voice = -1
}
thread.Voices[user] = new_voice
thread.Votes += new_voice - old_voice
result, err := c.Operations.ThreadVote(operations.NewThreadVoteParams().
WithSlugOrID(fmt.Sprintf("%d", thread.ID)).
WithVote(&models.Vote{
Nickname: user.Nickname,
Voice: new_voice,
}).
WithContext(Expected(200, nil, nil)))
CheckNil(err)
if result.Payload.Votes != thread.Votes {
panic(fmt.Sprintf("Unexpected votes count: %d != %d", result.Payload.Votes, thread.Votes))
}
thread.mutex.Unlock()
}
wg.Done()
}()
}
// wait for the workers to finish
waitWaitGroup(&wg, timeout, count, &need)
}
func waitWaitGroup(wg *sync.WaitGroup, timeout time.Time, total int, need *int32) bool {
done := make(chan struct{})
go func() {
wg.Wait()
close(done)
}()
logProgress := func() {
completed := total - int(atomic.LoadInt32(need))
if completed > total {
completed = total
}
log.Infof(" %d of %d (%.2f%%)", completed, total, 100*float32(completed)/float32(total))
}
for {
select {
case <-done:
logProgress()
return true
case <-time.After(time.Second * 10):
logProgress()
}
if time.Now().After(timeout) {
log.Panic("Timeout")
return false
}
}
}
func NewPerf(url *url.URL, config *PerfConfig) *Perf {
transport := CreateTransport(url)
report := Report{
OnlyError: true,
Result: Success,
}
c := client.New(&CheckerTransport{transport, &report}, nil)
data := NewPerfData(config)
return &Perf{c: c,
data: data,
validate: config.Validate,
}
}
func (self *Perf) Fill(threads int, timeout_sec int, config *PerfConfig) {
f := NewFactory()
timeout := time.Now().Add(time.Second * time.Duration(timeout_sec))
log.Infof("Clear data")
_, err := self.c.Operations.Clear(nil)
CheckNil(err)
log.Infof("Creating users (%d threads)", threads)
FillUsers(self, threads, timeout, config.UserCount)
log.Info("Creating forums")
for i := 0; i < config.ForumCount; i++ {
user := self.data.GetUser(-1)
forum := f.RandomForum()
forum.User = user.Nickname
forum = f.CreateForum(self.c, forum, nil)
self.data.AddForum(&PForum{
Slug: forum.Slug,
TitleHash: Hash(forum.Title),
User: user,
})
}
log.Infof("Creating threads (%d threads)", threads)
FillThreads(self, threads, timeout, config.ThreadCount)
log.Infof("Vote threads (%d threads)", threads)
VoteThreads(self, threads, timeout, config.VoteCount)
log.Infof("Creating posts (%d threads)", threads)
FillPosts(self, threads, timeout, config.PostCount, config.PostBatch)
log.Info("Prepare for saving data")
self.data.Normalize()
log.Info("Done")
}