func NewDvExistCache(mb, ttl int) *SimpleCache {
lc := SimpleCache{
cache: freecache.NewCache(mb * 1024 * 1024),
ttl: ttl,
}
return &lc
}
func (_ Test) FreeCache() {
freeCache := freecache.NewCache(512 * 1024 * 1024)
val := make([]byte, 10)
freeCache.Set([]byte("Key"), val, 0)
_, _ = freeCache.Get([]byte("Key"))
}
func StartDispatcher(nworkers int) {
// First, initialize the channel we are going to but the workers' work channels into.
WorkerQueue = make(chan chan WorkRequest, nworkers)
// Inicialize the cache
cache := freecache.NewCache(512 * 1024)
// Now, create all of our workers.
for i := 0; i < nworkers; i++ {
fmt.Println("Starting worker", i+1)
worker := NewWorker(i+1, WorkerQueue, cache)
worker.Start()
}
go func() {
for {
select {
case work := <-WorkQueue:
fmt.Println("Received work requeust")
go func() {
worker := <-WorkerQueue
fmt.Println("Dispatching work request")
worker <- work
}()
}
}
}()
}
func BenchmarkParserSet(b *testing.B) {
cache := freecache.NewCache(0)
logger := log.New(ioutil.Discard, "logger: ", log.Lshortfile)
parser := Parser{logger: logger, writer: ioutil.Discard, cache: cache}
line := []byte("SET key 0 value")
b.ResetTimer()
for i := 0; i < b.N; i++ {
parser.Parse(line)
}
}
func main() {
debug.SetGCPercent(10)
fmt.Println("Number of entries: ", entries)
config := bigcache.Config{
Shards: 256,
LifeWindow: 100 * time.Minute,
MaxEntriesInWindow: entries,
MaxEntrySize: 200,
Verbose: true,
}
bigcache, _ := bigcache.NewBigCache(config)
for i := 0; i < entries; i++ {
key, val := generateKeyValue(i, valueSize)
bigcache.Set(key, val)
}
firstKey, _ := generateKeyValue(1, valueSize)
checkFirstElement(bigcache.Get(firstKey))
fmt.Println("GC pause for bigcache: ", gcPause())
bigcache = nil
gcPause()
//------------------------------------------
freeCache := freecache.NewCache(entries * 200) //allocate entries * 200 bytes
for i := 0; i < entries; i++ {
key, val := generateKeyValue(i, valueSize)
if err := freeCache.Set([]byte(key), val, 0); err != nil {
fmt.Println("Error in set: ", err.Error())
}
}
firstKey, _ = generateKeyValue(1, valueSize)
checkFirstElement(freeCache.Get([]byte(firstKey)))
if freeCache.OverwriteCount() != 0 {
fmt.Println("Overwritten: ", freeCache.OverwriteCount())
}
fmt.Println("GC pause for freecache: ", gcPause())
freeCache = nil
gcPause()
//------------------------------------------
mapCache := make(map[string][]byte)
for i := 0; i < entries; i++ {
key, val := generateKeyValue(i, valueSize)
mapCache[key] = val
}
fmt.Println("GC pause for map: ", gcPause())
}
func BenchmarkFreeCacheGet(b *testing.B) {
b.StopTimer()
cache := freecache.NewCache(b.N * maxEntrySize)
for i := 0; i < b.N; i++ {
cache.Set([]byte(key(i)), value(), 0)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
cache.Get([]byte(key(i)))
}
}
func NewCache(size int, expireTime time.Duration) *Cache {
if size == 0 {
return &Cache{}
} else {
return &Cache{
cache: freecache.NewCache(size),
mutex: &sync.Mutex{},
data: map[string]bool{},
expireTime: expireTime,
}
}
}
func main() {
runtime.GOMAXPROCS(8)
// defer profile.Start(profile.MemProfile, profile.ProfilePath(".")).Stop()
logger := log.New(os.Stdout, "logger: ", log.Lshortfile)
cache := freecache.NewCache(512 * 1024 * 1024)
for index := 0; index < 128; index++ {
cache.Set([]byte(fmt.Sprintf("key%d", index)), []byte("value"), 0)
}
server := mulu.NewServer(cache, logger)
server.Start(":9022")
}
func BenchmarkFreeCacheSetParallel(b *testing.B) {
cache := freecache.NewCache(b.N * maxEntrySize)
rand.Seed(time.Now().Unix())
b.RunParallel(func(pb *testing.PB) {
id := rand.Intn(1000)
counter := 0
for pb.Next() {
cache.Set([]byte(parallelKey(id, counter)), value(), 0)
counter = counter + 1
}
})
}
func BenchmarkFreeCacheGetParallel(b *testing.B) {
b.StopTimer()
cache := freecache.NewCache(b.N * maxEntrySize)
for i := 0; i < b.N; i++ {
cache.Set([]byte(key(i)), value(), 0)
}
b.StartTimer()
b.RunParallel(func(pb *testing.PB) {
counter := 0
for pb.Next() {
cache.Get([]byte(key(counter)))
counter = counter + 1
}
})
}
func (_ Test) FreeCache2() {
cacheSize := 100 * 1024 * 1024
cache := freecache.NewCache(cacheSize)
key := []byte("abc")
val := []byte("def")
expire := 60 // expire in 60 seconds
cache.Set(key, val, expire)
got, err := cache.Get(key)
if err != nil {
e.InfoLog.Println(err)
} else {
e.InfoLog.Println(string(got))
}
affected := cache.Del(key)
e.InfoLog.Println("deleted key ", affected)
e.InfoLog.Println("entry count ", cache.EntryCount())
}
func NewServerSize(cachesize int, logger *log.Logger) *Server {
return &Server{
cache: freecache.NewCache(0),
logger: logger,
}
}
func BenchmarkFreeCacheSet(b *testing.B) {
cache := freecache.NewCache(b.N * maxEntrySize)
for i := 0; i < b.N; i++ {
cache.Set([]byte(key(i)), value(), 0)
}
}
"github.com/coocood/freecache"
"$GITHUB_URI/common/fs"
)
const (
generalTimeout = 30 // seconds
statsTimeout = 10 //seconds
)
var (
hitMetricsKey = []string{"process", "cache", "hit"}
missMetricsKey = []string{"process", "cache", "miss"}
)
var fileCache = freecache.NewCache(1024 * 16)
type entry struct {
buf []byte
err error
ts time.Time
}
func cachedReadFile(path string) ([]byte, error) {
key := []byte(path)
if v, err := fileCache.Get(key); err == nil {
metrics.IncrCounter(hitMetricsKey, 1.0)
return v, nil
}
buf, err := fs.ReadFile(path)
func NewServer(cacheSize int) (server *Server) {
server = new(Server)
server.cache = freecache.NewCache(cacheSize)
return
}
func main() {
c := freecache.NewCache(512 * 1024)
c.Set([]byte("a"), []byte("b"), 1024)
v, _ := c.Get([]byte("a"))
log.Println(string(v))
}
// 初始化Free进程缓存
func NewFree() {
cacheSize := 100 * 1024 * 1024
Free = freecache.NewCache(cacheSize)
}
func JoinConsumerGroupRealIp(realIp string, name string, topics []string, zookeeper []string,
config *Config) (cg *ConsumerGroup, err error) {
if name == "" {
return nil, sarama.ConfigurationError("Empty consumergroup name")
}
if len(topics) == 0 {
return nil, sarama.ConfigurationError("No topics provided")
}
if len(zookeeper) == 0 {
return nil, EmptyZkAddrs
}
if config == nil {
config = NewConfig()
}
config.ClientID = name
if err = config.Validate(); err != nil {
return
}
var kz *kazoo.Kazoo
if kz, err = kazoo.NewKazoo(zookeeper, config.Zookeeper); err != nil {
return
}
group := kz.Consumergroup(name)
if config.Offsets.ResetOffsets {
err = group.ResetOffsets()
if err != nil {
kz.Close()
return
}
}
instance := group.NewInstanceRealIp(realIp)
cg = &ConsumerGroup{
config: config,
kazoo: kz,
group: group,
instance: instance,
messages: make(chan *sarama.ConsumerMessage, config.ChannelBufferSize),
errors: make(chan *sarama.ConsumerError, config.ChannelBufferSize),
stopper: make(chan struct{}),
}
if config.NoDup {
cg.cacher = freecache.NewCache(1 << 20) // TODO
}
// Register consumer group in zookeeper
if exists, err := cg.group.Exists(); err != nil {
_ = kz.Close()
return nil, err
} else if !exists {
log.Debug("[%s/%s] consumer group in zk creating...", cg.group.Name, cg.shortID())
if err := cg.group.Create(); err != nil {
_ = kz.Close()
return nil, err
}
}
// Register itself with zookeeper: consumers/{group}/ids/{instanceId}
// This will lead to consumer group rebalance
if err := cg.instance.Register(topics); err != nil {
return nil, err
} else {
log.Debug("[%s/%s] cg instance registered in zk for %+v", cg.group.Name, cg.shortID(), topics)
}
// kafka connect
brokers, err := cg.kazoo.BrokerList()
if err != nil {
return nil, err
}
if consumer, err := sarama.NewConsumer(brokers, cg.config.Config); err != nil {
return nil, err
} else {
cg.consumer = consumer
}
offsetConfig := OffsetManagerConfig{CommitInterval: config.Offsets.CommitInterval}
cg.offsetManager = NewZookeeperOffsetManager(cg, &offsetConfig)
cg.wg.Add(1)
go cg.consumeTopics(topics)
return
}