| package org.apache.cassandra.stress.settings; |
| /* |
| * |
| * 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. |
| * |
| */ |
| |
| |
| import java.io.Serializable; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.cassandra.stress.util.ResultLogger; |
| |
| public class SettingsRate implements Serializable |
| { |
| |
| public final boolean auto; |
| public final int minThreads; |
| public final int maxThreads; |
| public final int threadCount; |
| public final int opsPerSecond; |
| public final boolean isFixed; |
| |
| public SettingsRate(ThreadOptions options) |
| { |
| auto = false; |
| threadCount = Integer.parseInt(options.threads.value()); |
| String throttleOpt = options.throttle.value(); |
| String fixedOpt = options.fixed.value(); |
| int throttle = Integer.parseInt(throttleOpt.substring(0, throttleOpt.length() - 2)); |
| int fixed = Integer.parseInt(fixedOpt.substring(0, fixedOpt.length() - 2)); |
| if(throttle != 0 && fixed != 0) |
| throw new IllegalArgumentException("can't have both fixed and throttle set, choose one."); |
| opsPerSecond = Math.max(fixed, throttle); |
| isFixed = (opsPerSecond == fixed); |
| |
| minThreads = -1; |
| maxThreads = -1; |
| } |
| |
| public SettingsRate(AutoOptions auto) |
| { |
| this.auto = auto.auto.setByUser(); |
| this.minThreads = Integer.parseInt(auto.minThreads.value()); |
| this.maxThreads = Integer.parseInt(auto.maxThreads.value()); |
| this.threadCount = -1; |
| this.opsPerSecond = 0; |
| isFixed = false; |
| } |
| |
| |
| // Option Declarations |
| |
| private static final class AutoOptions extends GroupedOptions |
| { |
| final OptionSimple auto = new OptionSimple("auto", "", null, "stop increasing threads once throughput saturates", false); |
| final OptionSimple minThreads = new OptionSimple("threads>=", "[0-9]+", "4", "run at least this many clients concurrently", false); |
| final OptionSimple maxThreads = new OptionSimple("threads<=", "[0-9]+", "1000", "run at most this many clients concurrently", false); |
| |
| @Override |
| public List<? extends Option> options() |
| { |
| return Arrays.asList(minThreads, maxThreads, auto); |
| } |
| } |
| |
| private static final class ThreadOptions extends GroupedOptions |
| { |
| final OptionSimple threads = new OptionSimple("threads=", "[0-9]+", null, "run this many clients concurrently", true); |
| final OptionSimple throttle = new OptionSimple("throttle=", "[0-9]+/s", "0/s", "throttle operations per second across all clients to a maximum rate (or less) with no implied schedule", false); |
| final OptionSimple fixed = new OptionSimple("fixed=", "[0-9]+/s", "0/s", "expect fixed rate of operations per second across all clients with implied schedule", false); |
| |
| @Override |
| public List<? extends Option> options() |
| { |
| return Arrays.asList(threads, throttle, fixed); |
| } |
| } |
| |
| // CLI Utility Methods |
| |
| public void printSettings(ResultLogger out) |
| { |
| out.printf(" Auto: %b%n", auto); |
| if (auto) |
| { |
| out.printf(" Min Threads: %d%n", minThreads); |
| out.printf(" Max Threads: %d%n", maxThreads); |
| } else { |
| out.printf(" Thread Count: %d%n", threadCount); |
| out.printf(" OpsPer Sec: %d%n", opsPerSecond); |
| } |
| } |
| |
| public static SettingsRate get(Map<String, String[]> clArgs, SettingsCommand command) |
| { |
| String[] params = clArgs.remove("-rate"); |
| if (params == null) |
| { |
| switch (command.type) |
| { |
| case WRITE: |
| case COUNTER_WRITE: |
| if (command.count > 0) |
| { |
| ThreadOptions options = new ThreadOptions(); |
| options.accept("threads=200"); |
| return new SettingsRate(options); |
| } |
| } |
| AutoOptions options = new AutoOptions(); |
| options.accept("auto"); |
| return new SettingsRate(options); |
| } |
| GroupedOptions options = GroupedOptions.select(params, new AutoOptions(), new ThreadOptions()); |
| if (options == null) |
| { |
| printHelp(); |
| System.out.println("Invalid -rate options provided, see output for valid options"); |
| System.exit(1); |
| } |
| if (options instanceof AutoOptions) |
| return new SettingsRate((AutoOptions) options); |
| else if (options instanceof ThreadOptions) |
| return new SettingsRate((ThreadOptions) options); |
| else |
| throw new IllegalStateException(); |
| } |
| |
| public static void printHelp() |
| { |
| GroupedOptions.printOptions(System.out, "-rate", new ThreadOptions(), new AutoOptions()); |
| } |
| |
| public static Runnable helpPrinter() |
| { |
| return SettingsRate::printHelp; |
| } |
| } |
| |