use new thread pool

Author: SilenceDut

taskscheduler/src/main/java/com/silencedut/taskscheduler/TaskScheduler.java

@@ -37,8 +37,8 @@ public class TaskScheduler {
     private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
     private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
     private static final long KEEP_ALIVE = 60L;
-    private static final BlockingQueue<Runnable> sPoolWorkQueue =
-            new LinkedBlockingQueue<Runnable>();
+    private static final BlockingQueue<Runnable> POOL_WORK_QUEUE =
+            new LinkedBlockingQueue<>(128);
 
     private static TaskScheduler getInstance() {
         if(sTaskScheduler==null) {
@@ -57,7 +57,7 @@ private TaskScheduler() {
           mParallelExecutor  直接使用AsyncTask的线程，减少新线程创建带来的资源消耗
           */
         mParallelExecutor = new ThreadPoolExecutor(CPU_COUNT,MAXIMUM_POOL_SIZE,
-                KEEP_ALIVE,TimeUnit.SECONDS,sPoolWorkQueue,ThreadFactory.TASKSCHEDULER_FACTORY);
+                KEEP_ALIVE,TimeUnit.SECONDS,POOL_WORK_QUEUE,ThreadFactory.TASKSCHEDULER_FACTORY);
 
         /*
           没有核心线程的线程池要用 SynchronousQueue 而不是LinkedBlockingQueue，SynchronousQueue是一个只有一个任务的队列，