001 /** 002 * Copyright (C) 2012 FuseSource, Inc. 003 * http://fusesource.com 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.fusesource.hawtdispatch; 019 020 /** 021 * <p> 022 * </p> 023 * 024 * @author <a href="http://hiramchirino.com">Hiram Chirino</a> 025 */ 026 public class Metrics { 027 028 /** 029 * The dispatch queue associated with the metrics collected. 030 */ 031 public DispatchQueue queue; 032 033 /** 034 * The number of runnable tasks queued. 035 */ 036 public long enqueued; 037 038 /** 039 * The number of runnable tasks that have been removed from the queue 040 * and executed. 041 */ 042 public long dequeued; 043 044 /** 045 * The longest amount of time at runnable task spent waiting in 046 * the queue. 047 */ 048 public long maxWaitTimeNS; 049 050 /** 051 * The long amount of time a runnable task spent executing in nanoseconds. 052 */ 053 public long maxRunTimeNS; 054 055 /** 056 * The sum of all the time spent executing tasks in nanoseconds. 057 */ 058 public long totalRunTimeNS; 059 060 /** 061 * The sum of all the time that tasks spent waiting in the queue in nanoseconds. 062 */ 063 public long totalWaitTimeNS; 064 065 @Override 066 public String toString() { 067 return String.format("{ label:%s, enqueued:%d, dequeued:%d, max_wait_time:%.2f ms, max_run_time:%.2f ms, total_run_time:%.2f ms, total_wait_time:%.2f ms }", 068 queue.getLabel(), 069 enqueued, 070 dequeued, 071 maxWaitTimeNS / 1000000.0f, 072 maxRunTimeNS / 1000000.0f, 073 totalRunTimeNS / 1000000.0f, 074 totalWaitTimeNS / 1000000.0f); 075 } 076 }