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[SYSTEMDS-3601] SchemaApplyPerfTests
This commit extends the performance Jar for measuring internal functions. In specific this commit adds functionality to measure bandwidth utilization of individual operations. Closes apache#1869
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src/test/java/org/apache/sysds/performance/TimingUtils.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.sysds.performance; | ||
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| import java.util.Arrays; | ||
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| import org.apache.sysds.performance.generators.IGenerate; | ||
| import org.apache.sysds.runtime.controlprogram.parfor.stat.Timing; | ||
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| /** | ||
| * Util methods for the Performance suite | ||
| */ | ||
| public interface TimingUtils { | ||
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| /** A specification enum for the type of statistics to gather from the time measurements */ | ||
| public enum StatsType { | ||
| MEAN_STD; | ||
| } | ||
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| /** The specified measurement to use in this case. Can be set from any of the programs */ | ||
| public static StatsType st = StatsType.MEAN_STD; | ||
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| /** | ||
| * Time the given function call | ||
| * | ||
| * @param f The function to execute | ||
| * @return The time it took | ||
| */ | ||
| public static double time(F f) { | ||
| Timing time = new Timing(true); | ||
| f.run(); | ||
| return time.stop(); | ||
| } | ||
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| /** | ||
| * Time the function and print using the string given prepended. | ||
| * | ||
| * @param f The function to time | ||
| * @param p The print statement | ||
| */ | ||
| public static void time(F f, String p) { | ||
| Timing time = new Timing(true); | ||
| f.run(); | ||
| System.out.print(p); | ||
| System.out.println(time.stop()); | ||
| } | ||
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| /** | ||
| * Time the function given assuming that it should put result into the given time array at index i. | ||
| * | ||
| * @param f The function to time | ||
| * @param times The time array to put the time result into | ||
| * @param i The index to put it into | ||
| */ | ||
| public static void time(F f, double[] times, int i) { | ||
| Timing time = new Timing(true); | ||
| f.run(); | ||
| times[i] = time.stop(); | ||
| } | ||
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| /** | ||
| * Time the given function a number of time using the generator to populate the input allocations without including | ||
| * it in the timing of the operation | ||
| * | ||
| * @param f The function to time | ||
| * @param rep The number of repetitions to make | ||
| * @param bq The generator for the input | ||
| * @return A list of the individual repetitions execution time | ||
| * @throws InterruptedException An exception in case the job gets interrupted | ||
| */ | ||
| public static double[] time(F f, int rep, IGenerate<?> bq) throws InterruptedException { | ||
| double[] times = new double[rep]; | ||
| for(int i = 0; i < rep; i++) { | ||
| while(bq.isEmpty()) | ||
| Thread.sleep(bq.defaultWaitTime()); | ||
| time(f, times, i); | ||
| } | ||
| return times; | ||
| } | ||
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| /** | ||
| * Calculate the statistics of the times executed The default is to calculate the mean and standard deviation and | ||
| * return that as a string | ||
| * | ||
| * @param v The times observed | ||
| * @return The status string. | ||
| */ | ||
| public static String stats(double[] v) { | ||
| switch(st) { | ||
| case MEAN_STD: | ||
| default: | ||
| return statsMeanSTD(v); | ||
| } | ||
| } | ||
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| private static String statsMeanSTD(double[] v) { | ||
| final int l = v.length; | ||
| final int remove = (int) Math.floor((double) l * 0.05); | ||
| Arrays.sort(v); | ||
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| double total = 0; | ||
| final int el = v.length - remove * 2; | ||
| for(int i = remove; i < l - remove; i++) | ||
| total += v[i]; | ||
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| double mean = total / el; | ||
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| double var = 0; | ||
| for(int i = remove; i < l - remove; i++) | ||
| var += Math.pow(Math.abs(v[i] - mean), 2); | ||
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| double std = Math.sqrt(var / el); | ||
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| return String.format("%8.3f+-%7.3f ms", mean, std); | ||
| } | ||
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| /** | ||
| * Interface method to enable timed calling from other Classes | ||
| */ | ||
| interface F { | ||
| void run(); | ||
| } | ||
| } |
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