diff --git a/packages/api/src/console.ts b/packages/api/src/console.ts
index 4ac75db7..e071c5ed 100644
--- a/packages/api/src/console.ts
+++ b/packages/api/src/console.ts
@@ -158,9 +158,11 @@ export class MiaoScriptConsole implements Console {
                     var { fileName, lineNumber } = this.readSourceMap(trace.fileName, trace.lineNumber)
                     if (fileName.startsWith(root)) { fileName = fileName.split(root)[1] }
                 } else {
-                    for (let prefix in ignoreLogPrefix) {
-                        if (className.startsWith(ignoreLogPrefix[prefix])) {
-                            return
+                    if (!global.debug) {
+                        for (let prefix in ignoreLogPrefix) {
+                            if (className.startsWith(ignoreLogPrefix[prefix])) {
+                                return
+                            }
                         }
                     }
                 }
diff --git a/packages/nashorn/src/index.ts b/packages/nashorn/src/index.ts
index 5c9ccfa7..e62ac3f7 100644
--- a/packages/nashorn/src/index.ts
+++ b/packages/nashorn/src/index.ts
@@ -67,6 +67,7 @@ declare global {
     interface Core {
         getClass(name: String): any
         getProxyClass(): any
+        getJavaScriptTaskClass(): any
         getInstance(): any
         read(path: string): string
         save(path: string, content: string): void
diff --git a/packages/ployfill/src/node-shim.ts b/packages/ployfill/src/node-shim.ts
index 2d81d1fe..5ccbfc25 100644
--- a/packages/ployfill/src/node-shim.ts
+++ b/packages/ployfill/src/node-shim.ts
@@ -5,13 +5,15 @@ const ThreadGroup = Java.type("java.lang.ThreadGroup")
 const AtomicInteger = Java.type("java.util.concurrent.atomic.AtomicInteger")
 const ThreadPoolExecutor = Java.type('java.util.concurrent.ThreadPoolExecutor')
 const LinkedBlockingQueue = Java.type("java.util.concurrent.LinkedBlockingQueue")
-const TimeUnit = Java.type("java.util.concurrent.TimeUnit")
+const TimeUnit = Java.type('java.util.concurrent.TimeUnit')
+const DelayQueue = Java.type('java.util.concurrent.DelayQueue')
+const JavaScriptTask = Java.type(base.getJavaScriptTaskClass().name)
 
 const threadCount = new AtomicInteger(0)
 const threadGroup = new ThreadGroup("@ccms/ployfill-micro-task")
 const microTaskPool = new ThreadPoolExecutor(
-    10, 100, 60, Packages.java.util.concurrent.TimeUnit.SECONDS,
-    new LinkedBlockingQueue(500),
+    100, 200, 60, Packages.java.util.concurrent.TimeUnit.SECONDS,
+    new LinkedBlockingQueue(300),
     (run: any) => new Thread(threadGroup, run, "@ccms/micro-task-" + threadCount.incrementAndGet()),
     new ThreadPoolExecutor.CallerRunsPolicy()
 )
@@ -38,52 +40,105 @@ class Process extends EventEmitter {
     nextTick(func: Function) {
         microTaskPool.execute(func)
     }
-    queueMicrotask(func: Function) {
-        microTaskPool.execute(func)
-    }
     exit(code: number) {
         process.emit('exit', code)
         microTaskPool.shutdown()
-        console.log('await microTaskPool termination...')
+        console.log('process exit await microTaskPool termination...')
         microTaskPool.awaitTermination(5000, TimeUnit.MILLISECONDS)
     }
 }
-const timeoutCount = new AtomicInteger(0)
-const timeoutTasks = []
-function setTimeout(func: Function, time: number, ...args: any[]) {
-    let taskId = timeoutCount.incrementAndGet()
-    timeoutTasks[taskId] = func
-    process.nextTick(() => {
-        Thread.sleep(time)
-        if (timeoutTasks[taskId]) { func(...args) }
-    })
-    return taskId
-}
-function clearTimeout(taskId: number) {
-    delete timeoutTasks[taskId]
-}
-const intervalCount = new AtomicInteger(0)
-const intervalTasks = []
-function setInterval(func: Function, time: number, ...args: any[]) {
-    let taskId = intervalCount.incrementAndGet()
-    intervalTasks[taskId] = func
-    process.nextTick(() => {
-        Thread.sleep(time)
-        while (intervalTasks[taskId]) {
-            func(...args)
-            Thread.sleep(time)
+
+class EventLoop {
+    private eventLoopMainThread = undefined
+    private eventLoopTaskQueue = new DelayQueue()
+
+    constructor() {
+        this.eventLoopMainThread = new Thread(() => {
+            let task = undefined
+            try {
+                while ((task = this.eventLoopTaskQueue.take()) != undefined) {
+                    try {
+                        task.getTask()()
+                    } catch (error) {
+                        try {
+                            process.emit('error', error)
+                        } catch (error) {
+                            console.error(error)
+                            console.ex(error)
+                        }
+                    }
+                }
+            } catch (error) {
+                console.log(`EventLoop Thread isInterrupted exit! remainTask: ${this.eventLoopTaskQueue.size()}`)
+                this.eventLoopTaskQueue.clear()
+                this.eventLoopTaskQueue = undefined
+                this.timeoutCount = undefined
+                this.timeoutTasks = undefined
+                this.intervalCount = undefined
+                this.intervalTasks = undefined
+                this.eventLoopMainThread = undefined
+            }
+        }, "@ccms/node-shim/event-loop")
+        this.eventLoopMainThread.setDaemon(true)
+        process.on('exit', () => this.eventLoopMainThread.interrupt())
+    }
+
+    startEventLoop() {
+        this.eventLoopMainThread.start()
+    }
+
+    private putDelayTask(callback: Function, ms: number) {
+        this.eventLoopTaskQueue.put(new JavaScriptTask(callback, ms))
+    }
+
+    private timeoutCount = new AtomicInteger(0)
+    private timeoutTasks = []
+    setTimeout(callback: (...args: any[]) => void, ms: number, ...args: any[]) {
+        let taskId = this.timeoutCount.incrementAndGet()
+        this.timeoutTasks[taskId] = callback
+        console.trace(`create setTimeout task ${taskId} => ${callback}`)
+        this.putDelayTask(() => {
+            if (this.timeoutTasks[taskId]) {
+                callback(...args)
+            } else {
+                console.trace(`ignore setTimeout ${ms}ms task ${taskId} because it's cancelled!`)
+            }
+        }, ms)
+        return taskId
+    }
+    clearTimeout(taskId: number) {
+        delete this.timeoutTasks[taskId]
+    }
+
+    private intervalCount = new AtomicInteger(0)
+    private intervalTasks = []
+    setInterval(callback: (...args: any[]) => void, ms: number, ...args: any[]) {
+        let taskId = this.intervalCount.incrementAndGet()
+        this.intervalTasks[taskId] = callback
+        console.trace(`create setInterval ${ms}ms task ${taskId} => ${callback}`)
+        let intervalTask = () => {
+            if (this.intervalTasks[taskId]) {
+                callback(...args)
+                this.putDelayTask(intervalTask, ms)
+            } else {
+                console.trace(`ignore setInterval task ${taskId} because it's cancelled!`)
+            }
         }
-    })
-    return taskId
-}
-function clearInterval(taskId: number) {
-    delete intervalTasks[taskId]
+        this.putDelayTask(intervalTask, ms)
+        return taskId
+    }
+    clearInterval(taskId: number) {
+        delete this.intervalTasks[taskId]
+    }
 }
 global.setGlobal('process', new Process(), {})
+const eventLoop = new EventLoop()
+global.setGlobal('eventLoop', eventLoop, {})
+eventLoop.startEventLoop()
 global.setGlobal('queueMicrotask', (func: any) => microTaskPool.execute(func), {})
-global.setGlobal('setTimeout', setTimeout, {})
-global.setGlobal('clearTimeout', clearTimeout, {})
-global.setGlobal('setImmediate', (func: Function, ...args: any[]) => setTimeout(func, 0, ...args), {})
-global.setGlobal('clearImmediate ', clearTimeout, {})
-global.setGlobal('setInterval', setInterval, {})
-global.setGlobal('clearInterval', clearInterval, {})
+global.setGlobal('setTimeout', eventLoop.setTimeout.bind(eventLoop), {})
+global.setGlobal('clearTimeout', eventLoop.clearTimeout.bind(eventLoop), {})
+global.setGlobal('setImmediate', (callback: (...args: any[]) => void, ...args: any[]) => eventLoop.setTimeout(callback, 0, ...args), {})
+global.setGlobal('clearImmediate ', eventLoop.clearTimeout.bind(eventLoop), {})
+global.setGlobal('setInterval', eventLoop.setInterval.bind(eventLoop), {})
+global.setGlobal('clearInterval', eventLoop.clearInterval.bind(eventLoop), {})