org.apache.sysml.utils.Timer Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of systemml Show documentation

Declarative Machine Learning

There is a newer version: 1.2.0

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.sysml.utils;

public class Timer 
{

	
	long start;
	double sofar;
	
	public Timer() {
		start = 0 ;
		sofar = 0.0;
	}
	
	public void start() {
		start = System.nanoTime();
		sofar = 0.0;
	}
	
	public double stop() {
		double duration = sofar + (System.nanoTime()-start)*1e-6;
		sofar = 0.0;
		start = 0;
		return duration;
	}
	
	public double nanostop() {
		double duration = sofar + (System.nanoTime()-start);
		sofar = 0.0;
		start = 0;
		return duration;
	}
	
	public double pause() {
		sofar += (System.nanoTime()-start)*1e-6;
		return sofar;
	}
	
	public void resume() {
		start = System.nanoTime();
	}
	
}