1 /* 2 * Copyright @ 2018 - present 8x8, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.jitsi.videobridge.util; 18 19 import org.jitsi.nlj.util.*; 20 import org.jitsi.utils.logging2.*; 21 import org.json.simple.*; 22 23 import java.util.concurrent.*; 24 25 public class TaskPools 26 { 27 private static final Logger classLogger = new LoggerImpl(TaskPools.class.getName()); 28 /** 29 * A global executor service which can be used for non-CPU-intensive tasks. 30 */ 31 public static final ExecutorService IO_POOL = 32 Executors.newCachedThreadPool(new NameableThreadFactory("Global IO pool")); 33 34 /** 35 * An executor to be used for CPU-intensive tasks. NOTE that tasks which block should 36 * NOT use this pool! 37 */ 38 public static final ExecutorService CPU_POOL = 39 Executors.newFixedThreadPool( 40 Runtime.getRuntime().availableProcessors(), 41 new NameableThreadFactory("Global CPU pool") 42 ); 43 44 public static final ScheduledExecutorService SCHEDULED_POOL = 45 Executors.newSingleThreadScheduledExecutor(new NameableThreadFactory("Global scheduled pool")); 46 47 @SuppressWarnings("unchecked") getStatsJson(ExecutorService es)48 public static JSONObject getStatsJson(ExecutorService es) 49 { 50 JSONObject debugState = new JSONObject(); 51 debugState.put("executor_class", es.getClass().getSimpleName()); 52 53 if (es instanceof ThreadPoolExecutor) 54 { 55 ThreadPoolExecutor ex = (ThreadPoolExecutor)es; 56 debugState.put("pool_size", ex.getPoolSize()); 57 debugState.put("active_task_count", ex.getActiveCount()); 58 debugState.put("completed_task_count", ex.getCompletedTaskCount()); 59 debugState.put("core_pool_size", ex.getCorePoolSize()); 60 debugState.put("maximum_pool_size", ex.getMaximumPoolSize()); 61 debugState.put("largest_pool_size", ex.getLargestPoolSize()); 62 debugState.put("queue_class", ex.getQueue().getClass().getSimpleName()); 63 debugState.put("pending_task_count", ex.getQueue().size()); 64 } 65 66 return debugState; 67 } 68 69 @SuppressWarnings("unchecked") getStatsJson()70 public static JSONObject getStatsJson() 71 { 72 JSONObject debugState = new JSONObject(); 73 74 debugState.put("IO_POOL", getStatsJson(IO_POOL)); 75 debugState.put("CPU_POOL", getStatsJson(CPU_POOL)); 76 77 return debugState; 78 } 79 80 static { 81 classLogger.info("TaskPools detected " + Runtime.getRuntime().availableProcessors() + 82 " processors, creating the CPU pool with that many threads"); 83 84 } 85 } 86