diff --git a/actor/inbox.go b/actor/inbox.go
index c2bcc9b..eda83be 100644
--- a/actor/inbox.go
+++ b/actor/inbox.go
@@ -1,6 +1,8 @@
 package actor
 
 import (
+	"runtime"
+
 	"github.com/anthdm/hollywood/ggq"
 	"github.com/anthdm/hollywood/log"
 )
@@ -30,15 +32,15 @@ func (in *Inbox) Consume(msgs []Envelope) {
 
 func (in *Inbox) Start(proc Processer) {
 	in.proc = proc
-	// var lockOSThread bool
+	var lockOSThread bool
 	// prevent race condition here be reassigning before go routine.
-	// if LOCK_OS_THREAD {
-	// lockOSThread = true
-	// }
+	if LOCK_OS_THREAD {
+		lockOSThread = true
+	}
 	go func() {
-		// if lockOSThread {
-		// runtime.LockOSThread()
-		// }
+		if lockOSThread {
+			runtime.LockOSThread()
+		}
 		in.ggq.ReadN()
 	}()
 	log.Tracew("[INBOX] started", log.M{"pid": proc.PID()})
diff --git a/actor/pid_test.go b/actor/pid_test.go
index 528f183..50a5953 100644
--- a/actor/pid_test.go
+++ b/actor/pid_test.go
@@ -6,33 +6,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func BenchmarkXxddd(b *testing.B) {
-	var key string
-	var keyint uint64
-	pid := NewPID("127.0.0.1:4000", "foobar")
-
-	b.Run("+", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			key = pid.Address + pidSeparator + pid.ID
-		}
-	})
-	b.Run("key", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			keyint = pid.LookupKey()
-		}
-	})
-
-	_ = key
-	_ = keyint
-}
-
-func BenchmarkLookupKey(b *testing.B) {
-	pid := NewPID("127.0.0.1:3000", "foo")
-	for i := 0; i < b.N; i++ {
-		pid.LookupKey()
-	}
-}
-
 func BenchmarkNewPID(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		NewPID("127.0.0.1:3000", "foo")
diff --git a/ggq/ggq.go b/ggq/ggq.go
index dd036cf..53a995d 100644
--- a/ggq/ggq.go
+++ b/ggq/ggq.go
@@ -26,10 +26,6 @@ const (
 	stateClosed
 )
 
-var (
-	state atomic.Int32
-)
-
 type slot[T any] struct {
 	item T
 	atomic.Uint32
@@ -41,6 +37,8 @@ type GGQ[T any] struct {
 	_          [cacheLinePadding - unsafe.Sizeof(atomic.Uint32{})]byte
 	read       atomic.Uint32
 	_          [cacheLinePadding - unsafe.Sizeof(atomic.Uint32{})]byte
+	state      atomic.Uint32
+	_          [cacheLinePadding - unsafe.Sizeof(atomic.Uint32{})]byte
 	buffer     []slot[T]
 	_          [cacheLinePadding]byte
 	mask       uint32
@@ -85,10 +83,9 @@ func (q *GGQ[T]) ReadN() (T, bool) {
 			q.read.Store(upper)
 			current = upper
 			runtime.Gosched()
-			// time.Sleep(time.Nanosecond)
 		} else if upper := q.written.Load(); lower <= upper {
 			runtime.Gosched()
-		} else if !state.CompareAndSwap(stateClosed, stateRunning) {
+		} else if !q.state.CompareAndSwap(stateClosed, stateRunning) {
 			time.Sleep(time.Microsecond)
 		} else {
 			break
@@ -126,7 +123,7 @@ func (q *GGQ[T]) Read() (T, bool) {
 		case slotBusy:
 			runtime.Gosched()
 		case slotEmpty:
-			if state.CompareAndSwap(stateClosed, stateRunning) {
+			if q.state.CompareAndSwap(stateClosed, stateRunning) {
 				var t T
 				return t, true
 			}
@@ -141,7 +138,7 @@ func (q *GGQ[T]) Read() (T, bool) {
 }
 
 func (q *GGQ[T]) Close() {
-	state.Store(stateClosed)
+	q.state.Store(stateClosed)
 }
 
 func isPOW2(n uint32) bool {
diff --git a/go.mod b/go.mod
index f9cd9be..f717567 100644
--- a/go.mod
+++ b/go.mod
@@ -6,18 +6,19 @@ require (
 	github.com/planetscale/vtprotobuf v0.4.0
 	github.com/sirupsen/logrus v1.9.0
 	github.com/stretchr/testify v1.8.1
-	github.com/zeebo/xxh3 v1.0.2
 	google.golang.org/grpc v1.53.0
 	google.golang.org/protobuf v1.28.1
 	storj.io/drpc v0.0.32
 )
 
+require github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
-	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/zeebo/errs v1.2.2 // indirect
+	github.com/zeebo/xxh3 v1.0.2
 	golang.org/x/net v0.5.0 // indirect
 	golang.org/x/sys v0.4.0 // indirect
 	golang.org/x/text v0.6.0 // indirect