Madan Jampani | c23b626 | 2016-04-07 15:57:22 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Laboratory |
Madan Jampani | c23b626 | 2016-04-07 15:57:22 -0700 | [diff] [blame] | 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 | package org.onosproject.flowperf; |
| 17 | |
| 18 | import static com.google.common.base.Strings.isNullOrEmpty; |
| 19 | import static org.apache.felix.scr.annotations.ReferenceCardinality.MANDATORY_UNARY; |
| 20 | import static org.onlab.util.Tools.get; |
| 21 | import static org.slf4j.LoggerFactory.getLogger; |
| 22 | |
| 23 | import java.util.Dictionary; |
| 24 | import java.util.Iterator; |
| 25 | import java.util.List; |
| 26 | import java.util.concurrent.CountDownLatch; |
| 27 | import java.util.concurrent.ExecutorService; |
| 28 | import java.util.concurrent.Executors; |
| 29 | import java.util.concurrent.atomic.AtomicInteger; |
| 30 | import java.util.concurrent.atomic.AtomicLong; |
| 31 | |
| 32 | import org.apache.felix.scr.annotations.Activate; |
| 33 | import org.apache.felix.scr.annotations.Component; |
| 34 | import org.apache.felix.scr.annotations.Deactivate; |
| 35 | import org.apache.felix.scr.annotations.Modified; |
| 36 | import org.apache.felix.scr.annotations.Property; |
| 37 | import org.apache.felix.scr.annotations.Reference; |
| 38 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 39 | import org.apache.felix.scr.annotations.Service; |
| 40 | import org.onlab.packet.MacAddress; |
| 41 | import org.onlab.util.Tools; |
| 42 | import org.onosproject.cfg.ComponentConfigService; |
| 43 | import org.onosproject.core.ApplicationId; |
| 44 | import org.onosproject.core.CoreService; |
| 45 | import org.onosproject.net.Device; |
| 46 | import org.onosproject.net.PortNumber; |
| 47 | import org.onosproject.net.device.DeviceService; |
| 48 | import org.onosproject.net.flow.DefaultFlowRule; |
| 49 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 50 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 51 | import org.onosproject.net.flow.FlowRule; |
| 52 | import org.onosproject.net.flow.FlowRuleEvent; |
| 53 | import org.onosproject.net.flow.FlowRuleListener; |
| 54 | import org.onosproject.net.flow.FlowRuleService; |
| 55 | import org.onosproject.net.flow.TrafficSelector; |
| 56 | import org.onosproject.net.flow.TrafficTreatment; |
| 57 | import org.onosproject.net.flow.instructions.Instructions; |
| 58 | import org.osgi.service.component.ComponentContext; |
| 59 | import org.slf4j.Logger; |
| 60 | |
| 61 | import com.google.common.collect.Iterables; |
| 62 | import com.google.common.collect.Lists; |
| 63 | |
| 64 | /** |
| 65 | * Application for measuring flow installation performance. |
| 66 | * <p> |
| 67 | * This application installs a bunch of flows, validates that all those flows have |
| 68 | * been successfully added and immediately proceeds to remove all the added flows. |
| 69 | */ |
| 70 | @Component(immediate = true, enabled = true) |
| 71 | @Service(value = FlowPerfApp.class) |
| 72 | public class FlowPerfApp { |
| 73 | private final Logger log = getLogger(getClass()); |
| 74 | |
| 75 | @Reference(cardinality = MANDATORY_UNARY) |
| 76 | protected DeviceService deviceService; |
| 77 | |
| 78 | @Reference(cardinality = MANDATORY_UNARY) |
| 79 | protected FlowRuleService flowRuleService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | protected CoreService coreService; |
| 83 | |
| 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 85 | protected ComponentConfigService configService; |
| 86 | |
| 87 | protected ApplicationId appId; |
| 88 | |
| 89 | private static final int DEFAULT_BATCH_SIZE = 200; |
| 90 | private static final int DEFAULT_TOTAL_THREADS = 1; |
| 91 | private static final int DEFAULT_TOTAL_FLOWS = 100000; |
| 92 | private AtomicInteger pendingBatchCount; |
| 93 | private CountDownLatch installationLatch; |
| 94 | private CountDownLatch uninstallationLatch; |
| 95 | private Iterator<Device> devices; |
| 96 | private AtomicLong macIndex; |
| 97 | |
| 98 | List<FlowRule> addedRules = Lists.newArrayList(); |
| 99 | |
| 100 | @Property(name = "totalFlows", intValue = DEFAULT_TOTAL_FLOWS, |
| 101 | label = "Total number of flows") |
| 102 | protected int totalFlows = DEFAULT_TOTAL_FLOWS; |
| 103 | |
| 104 | @Property(name = "batchSize", intValue = DEFAULT_BATCH_SIZE, |
| 105 | label = "Number of flows per batch") |
| 106 | protected int batchSize = DEFAULT_BATCH_SIZE; |
| 107 | |
| 108 | @Property(name = "totalThreads", intValue = DEFAULT_TOTAL_THREADS, |
| 109 | label = "Number of installer threads") |
| 110 | protected int totalThreads = DEFAULT_TOTAL_THREADS; |
| 111 | |
| 112 | private ExecutorService installer; |
| 113 | private ExecutorService testRunner = |
| 114 | Executors.newSingleThreadExecutor(Tools.groupedThreads("app/flow-perf-test-runner", "")); |
| 115 | |
| 116 | @Activate |
| 117 | public void activate(ComponentContext context) { |
| 118 | appId = coreService.registerApplication("org.onosproject.flowperf"); |
| 119 | configService.registerProperties(getClass()); |
| 120 | installer = Executors.newFixedThreadPool(totalThreads, Tools.groupedThreads("app/flow-perf-worker", "%d")); |
| 121 | testRunner.submit(this::runTest); |
| 122 | log.info("Started"); |
| 123 | } |
| 124 | |
| 125 | @Deactivate |
| 126 | public void deactivate(ComponentContext context) { |
| 127 | installer.shutdown(); |
| 128 | testRunner.shutdown(); |
| 129 | configService.unregisterProperties(getClass(), false); |
| 130 | log.info("Stopped."); |
| 131 | } |
| 132 | |
| 133 | private void runTest() { |
| 134 | pendingBatchCount = new AtomicInteger(totalFlows / batchSize); |
| 135 | installationLatch = new CountDownLatch(totalFlows); |
| 136 | List<Device> deviceList = Lists.newArrayList(); |
| 137 | deviceService.getAvailableDevices().forEach(deviceList::add); |
| 138 | devices = Iterables.cycle(deviceList).iterator(); |
| 139 | log.info("Starting installation. Total flows: {}, Total threads: {}, " |
| 140 | + "Batch Size: {}", totalFlows, totalThreads, batchSize); |
| 141 | |
| 142 | macIndex = new AtomicLong(0); |
| 143 | FlowRuleListener addMonitor = event -> { |
| 144 | if (event.type() == FlowRuleEvent.Type.RULE_ADDED) { |
| 145 | installationLatch.countDown(); |
| 146 | } |
| 147 | }; |
| 148 | |
| 149 | flowRuleService.addListener(addMonitor); |
| 150 | long addStartTime = System.currentTimeMillis(); |
| 151 | for (int i = 0; i < totalThreads; ++i) { |
| 152 | installer.submit(() -> { |
| 153 | while (pendingBatchCount.getAndDecrement() > 0) { |
| 154 | List<FlowRule> batch = nextBatch(batchSize); |
| 155 | addedRules.addAll(batch); |
| 156 | flowRuleService.applyFlowRules(batch.toArray(new FlowRule[]{})); |
| 157 | } |
| 158 | }); |
| 159 | } |
| 160 | |
| 161 | // Wait till all the flows are in ADDED state. |
| 162 | try { |
| 163 | installationLatch.await(); |
| 164 | } catch (InterruptedException e) { |
| 165 | Thread.interrupted(); |
| 166 | } |
| 167 | log.info("Time to install {} flows: {} ms", totalFlows, System.currentTimeMillis() - addStartTime); |
| 168 | flowRuleService.removeListener(addMonitor); |
| 169 | |
| 170 | |
| 171 | uninstallationLatch = new CountDownLatch(totalFlows); |
| 172 | FlowRuleListener removeListener = event -> { |
| 173 | if (event.type() == FlowRuleEvent.Type.RULE_REMOVED) { |
| 174 | uninstallationLatch.countDown(); |
| 175 | } |
| 176 | }; |
| 177 | AtomicInteger currentIndex = new AtomicInteger(0); |
| 178 | long removeStartTime = System.currentTimeMillis(); |
| 179 | flowRuleService.addListener(removeListener); |
| 180 | // Uninstallation runs on a single thread. |
| 181 | installer.submit(() -> { |
| 182 | while (currentIndex.get() < addedRules.size()) { |
| 183 | List<FlowRule> removeBatch = addedRules.subList(currentIndex.get(), |
| 184 | Math.min(currentIndex.get() + batchSize, addedRules.size())); |
| 185 | currentIndex.addAndGet(removeBatch.size()); |
| 186 | flowRuleService.removeFlowRules(removeBatch.toArray(new FlowRule[]{})); |
| 187 | } |
| 188 | }); |
| 189 | try { |
| 190 | uninstallationLatch.await(); |
| 191 | } catch (InterruptedException e) { |
| 192 | Thread.interrupted(); |
| 193 | } |
| 194 | log.info("Time to uninstall {} flows: {} ms", totalFlows, System.currentTimeMillis() - removeStartTime); |
| 195 | flowRuleService.removeListener(removeListener); |
| 196 | } |
| 197 | |
| 198 | private List<FlowRule> nextBatch(int size) { |
| 199 | List<FlowRule> rules = Lists.newArrayList(); |
| 200 | for (int i = 0; i < size; ++i) { |
| 201 | Device device = devices.next(); |
| 202 | long srcMac = macIndex.incrementAndGet(); |
| 203 | long dstMac = srcMac + 1; |
| 204 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 205 | .matchEthSrc(MacAddress.valueOf(srcMac)) |
| 206 | .matchEthDst(MacAddress.valueOf(dstMac)) |
| 207 | .matchInPort(PortNumber.portNumber(2)) |
| 208 | .build(); |
| 209 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 210 | .add(Instructions.createOutput(PortNumber.portNumber(3))).build(); |
| 211 | FlowRule rule = new DefaultFlowRule(device.id(), |
| 212 | selector, |
| 213 | treatment, |
| 214 | 100, |
| 215 | appId, |
| 216 | 50000, |
| 217 | true, |
| 218 | null); |
| 219 | rules.add(rule); |
| 220 | } |
| 221 | return rules; |
| 222 | } |
| 223 | |
| 224 | @Modified |
| 225 | public void modified(ComponentContext context) { |
| 226 | if (context == null) { |
| 227 | totalFlows = DEFAULT_TOTAL_FLOWS; |
| 228 | batchSize = DEFAULT_BATCH_SIZE; |
| 229 | totalThreads = DEFAULT_TOTAL_THREADS; |
| 230 | return; |
| 231 | } |
| 232 | |
| 233 | Dictionary properties = context.getProperties(); |
| 234 | |
| 235 | int newTotalFlows = totalFlows; |
| 236 | int newBatchSize = batchSize; |
| 237 | int newTotalThreads = totalThreads; |
| 238 | try { |
| 239 | String s = get(properties, "batchSize"); |
| 240 | newTotalFlows = isNullOrEmpty(s) |
| 241 | ? totalFlows : Integer.parseInt(s.trim()); |
| 242 | |
| 243 | s = get(properties, "batchSize"); |
| 244 | newBatchSize = isNullOrEmpty(s) |
| 245 | ? batchSize : Integer.parseInt(s.trim()); |
| 246 | |
| 247 | s = get(properties, "totalThreads"); |
| 248 | newTotalThreads = isNullOrEmpty(s) |
| 249 | ? totalThreads : Integer.parseInt(s.trim()); |
| 250 | |
| 251 | } catch (NumberFormatException | ClassCastException e) { |
| 252 | return; |
| 253 | } |
| 254 | |
| 255 | boolean modified = newTotalFlows != totalFlows || newTotalThreads != totalThreads || |
| 256 | newBatchSize != batchSize; |
| 257 | |
| 258 | // If nothing has changed, simply return. |
| 259 | if (!modified) { |
| 260 | return; |
| 261 | } |
| 262 | |
| 263 | totalFlows = newTotalFlows; |
| 264 | batchSize = newBatchSize; |
| 265 | if (totalThreads != newTotalThreads) { |
| 266 | totalThreads = newTotalThreads; |
| 267 | installer.shutdown(); |
| 268 | installer = Executors.newFixedThreadPool(totalThreads, Tools.groupedThreads("flow-perf-worker", "%d")); |
| 269 | } |
| 270 | } |
| 271 | } |