Mercurial > pub > ImplabNet
annotate Implab.Test/AsyncTests.cs @ 21:6a56df4ec59e promises
DispatchPool works again, but performance is poor in some cases
| author | cin |
|---|---|
| date | Tue, 12 Nov 2013 19:52:10 +0400 |
| parents | 1c3b3d518480 |
| children | 5a35900264f5 |
| rev | line source |
|---|---|
| 4 | 1 using System; |
| 2 using Microsoft.VisualStudio.TestTools.UnitTesting; | |
| 3 using System.Reflection; | |
| 4 using System.Threading; | |
| 11 | 5 using Implab.Parallels; |
| 4 | 6 |
| 15 | 7 namespace Implab.Test { |
| 8 [TestClass] | |
| 9 public class AsyncTests { | |
| 10 [TestMethod] | |
| 11 public void ResolveTest() { | |
| 12 int res = -1; | |
| 13 var p = new Promise<int>(); | |
| 14 p.Then(x => res = x); | |
| 15 p.Resolve(100); | |
| 4 | 16 |
|
19
e3935fdf59a2
Promise is rewritten to use interlocked operations instead of locks
cin
parents:
17
diff
changeset
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17 Assert.AreEqual(100, res); |
| 15 | 18 } |
| 0 | 19 |
| 4 | 20 [TestMethod] |
| 15 | 21 public void RejectTest() { |
| 22 int res = -1; | |
| 23 Exception err = null; | |
| 4 | 24 |
| 15 | 25 var p = new Promise<int>(); |
| 26 p.Then(x => res = x, e => err = e); | |
| 27 p.Reject(new ApplicationException("error")); | |
| 4 | 28 |
| 15 | 29 Assert.AreEqual(res, -1); |
| 30 Assert.AreEqual(err.Message, "error"); | |
| 4 | 31 |
| 15 | 32 } |
| 0 | 33 |
| 4 | 34 [TestMethod] |
| 15 | 35 public void JoinSuccessTest() { |
| 36 var p = new Promise<int>(); | |
| 37 p.Resolve(100); | |
| 38 Assert.AreEqual(p.Join(), 100); | |
| 39 } | |
| 0 | 40 |
| 4 | 41 [TestMethod] |
| 15 | 42 public void JoinFailTest() { |
| 43 var p = new Promise<int>(); | |
| 44 p.Reject(new ApplicationException("failed")); | |
| 4 | 45 |
| 15 | 46 try { |
| 47 p.Join(); | |
| 48 throw new ApplicationException("WRONG!"); | |
| 49 } catch (TargetInvocationException err) { | |
| 50 Assert.AreEqual(err.InnerException.Message, "failed"); | |
| 51 } catch { | |
| 52 Assert.Fail("Got wrong excaption"); | |
| 53 } | |
| 54 } | |
| 0 | 55 |
| 4 | 56 [TestMethod] |
| 15 | 57 public void MapTest() { |
| 58 var p = new Promise<int>(); | |
| 4 | 59 |
| 15 | 60 var p2 = p.Map(x => x.ToString()); |
| 61 p.Resolve(100); | |
| 4 | 62 |
| 15 | 63 Assert.AreEqual(p2.Join(), "100"); |
| 64 } | |
| 0 | 65 |
| 4 | 66 [TestMethod] |
| 11 | 67 public void FixErrorTest() { |
| 68 var p = new Promise<int>(); | |
| 69 | |
| 70 var p2 = p.Error(e => 101); | |
| 71 | |
| 72 p.Reject(new Exception()); | |
| 73 | |
| 74 Assert.AreEqual(p2.Join(), 101); | |
| 75 } | |
| 76 | |
| 77 [TestMethod] | |
| 15 | 78 public void ChainTest() { |
| 79 var p1 = new Promise<int>(); | |
| 4 | 80 |
| 15 | 81 var p3 = p1.Chain(x => { |
| 82 var p2 = new Promise<string>(); | |
| 83 p2.Resolve(x.ToString()); | |
| 84 return p2; | |
| 85 }); | |
| 4 | 86 |
| 15 | 87 p1.Resolve(100); |
| 4 | 88 |
| 15 | 89 Assert.AreEqual(p3.Join(), "100"); |
| 90 } | |
| 0 | 91 |
| 4 | 92 [TestMethod] |
| 15 | 93 public void PoolTest() { |
| 94 var pid = Thread.CurrentThread.ManagedThreadId; | |
| 95 var p = AsyncPool.Invoke(() => Thread.CurrentThread.ManagedThreadId); | |
| 4 | 96 |
| 15 | 97 Assert.AreNotEqual(pid, p.Join()); |
| 98 } | |
| 10 | 99 |
| 100 [TestMethod] | |
| 13 | 101 public void WorkerPoolSizeTest() { |
| 17 | 102 var pool = new WorkerPool(5, 10, 0); |
| 13 | 103 |
| 20 | 104 Assert.AreEqual(5, pool.PoolSize); |
| 13 | 105 |
| 15 | 106 pool.Invoke(() => { Thread.Sleep(1000000); return 10; }); |
| 107 pool.Invoke(() => { Thread.Sleep(1000000); return 10; }); | |
| 108 pool.Invoke(() => { Thread.Sleep(1000000); return 10; }); | |
| 13 | 109 |
| 20 | 110 Assert.AreEqual(5, pool.PoolSize); |
| 13 | 111 |
| 112 for (int i = 0; i < 100; i++) | |
| 15 | 113 pool.Invoke(() => { Thread.Sleep(1000000); return 10; }); |
| 114 Thread.Sleep(100); | |
| 20 | 115 Assert.AreEqual(10, pool.PoolSize); |
| 15 | 116 |
| 117 pool.Dispose(); | |
| 13 | 118 } |
| 119 | |
| 120 [TestMethod] | |
| 121 public void WorkerPoolCorrectTest() { | |
| 17 | 122 var pool = new WorkerPool(0,1000,100); |
| 15 | 123 |
| 124 int iterations = 1000; | |
| 125 int pending = iterations; | |
| 126 var stop = new ManualResetEvent(false); | |
| 13 | 127 |
| 128 var count = 0; | |
| 15 | 129 for (int i = 0; i < iterations; i++) { |
| 13 | 130 pool |
| 131 .Invoke(() => 1) | |
| 15 | 132 .Then(x => Interlocked.Add(ref count, x)) |
| 133 .Then(x => Math.Log10(x)) | |
| 134 .Anyway(() => { | |
| 135 Interlocked.Decrement(ref pending); | |
| 136 if (pending == 0) | |
| 137 stop.Set(); | |
| 138 }); | |
| 139 } | |
| 140 | |
| 141 stop.WaitOne(); | |
| 13 | 142 |
| 15 | 143 Assert.AreEqual(iterations, count); |
| 144 Console.WriteLine("Max threads: {0}", pool.MaxRunningThreads); | |
| 145 pool.Dispose(); | |
| 146 | |
| 147 } | |
| 148 | |
| 149 [TestMethod] | |
| 150 public void WorkerPoolDisposeTest() { | |
| 151 var pool = new WorkerPool(5, 20); | |
| 20 | 152 Assert.AreEqual(5, pool.PoolSize); |
| 15 | 153 pool.Dispose(); |
|
21
6a56df4ec59e
DispatchPool works again, but performance is poor in some cases
cin
parents:
20
diff
changeset
|
154 Thread.Sleep(500); |
| 20 | 155 Assert.AreEqual(0, pool.PoolSize); |
| 15 | 156 pool.Dispose(); |
| 13 | 157 } |
| 158 | |
| 159 [TestMethod] | |
| 14 | 160 public void MTQueueTest() { |
| 161 var queue = new MTQueue<int>(); | |
| 162 int res; | |
| 163 | |
| 164 queue.Enqueue(10); | |
| 165 Assert.IsTrue(queue.TryDequeue(out res)); | |
| 166 Assert.AreEqual(10, res); | |
| 167 Assert.IsFalse(queue.TryDequeue(out res)); | |
| 168 | |
| 169 for (int i = 0; i < 1000; i++) | |
| 170 queue.Enqueue(i); | |
| 171 | |
| 172 for (int i = 0; i < 1000; i++) { | |
| 173 queue.TryDequeue(out res); | |
| 174 Assert.AreEqual(i, res); | |
| 175 } | |
| 176 | |
| 177 int writers = 0; | |
| 178 int readers = 0; | |
| 179 var stop = new ManualResetEvent(false); | |
| 180 int total = 0; | |
| 181 | |
| 182 int itemsPerWriter = 1000; | |
| 183 int writersCount = 3; | |
| 184 | |
| 185 for (int i = 0; i < writersCount; i++) { | |
| 186 Interlocked.Increment(ref writers); | |
| 187 var wn = i; | |
| 188 AsyncPool | |
| 189 .InvokeNewThread(() => { | |
| 190 for (int ii = 0; ii < itemsPerWriter; ii++) { | |
| 191 queue.Enqueue(1); | |
| 192 } | |
| 193 return 1; | |
| 194 }) | |
| 15 | 195 .Anyway(() => Interlocked.Decrement(ref writers)); |
| 14 | 196 } |
| 15 | 197 |
| 14 | 198 for (int i = 0; i < 10; i++) { |
| 199 Interlocked.Increment(ref readers); | |
| 200 var wn = i; | |
| 201 AsyncPool | |
| 202 .InvokeNewThread(() => { | |
| 203 int t; | |
| 204 do { | |
| 205 while (queue.TryDequeue(out t)) | |
| 206 Interlocked.Add(ref total, t); | |
| 207 } while (writers > 0); | |
| 208 return 1; | |
| 209 }) | |
| 15 | 210 .Anyway(() => { |
| 14 | 211 Interlocked.Decrement(ref readers); |
| 212 if (readers == 0) | |
| 213 stop.Set(); | |
| 214 }); | |
| 215 } | |
| 216 | |
| 217 stop.WaitOne(); | |
| 218 | |
| 219 Assert.AreEqual(itemsPerWriter * writersCount, total); | |
| 220 } | |
| 221 | |
| 222 [TestMethod] | |
| 15 | 223 public void ParallelMapTest() { |
| 224 | |
| 225 int count = 100000; | |
| 226 | |
| 227 double[] args = new double[count]; | |
| 228 var rand = new Random(); | |
| 229 | |
| 230 for (int i = 0; i < count; i++) | |
| 231 args[i] = rand.NextDouble(); | |
| 232 | |
| 233 var t = Environment.TickCount; | |
| 234 var res = args.ParallelMap(x => Math.Sin(x*x), 4).Join(); | |
| 235 | |
| 236 Console.WriteLine("Map complete in {0} ms", Environment.TickCount - t); | |
| 237 | |
| 238 t = Environment.TickCount; | |
| 239 for (int i = 0; i < count; i++) | |
| 240 Assert.AreEqual(Math.Sin(args[i] * args[i]), res[i]); | |
| 241 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t); | |
| 242 } | |
| 243 | |
| 244 [TestMethod] | |
| 16 | 245 public void ChainedMapTest() { |
| 246 | |
|
21
6a56df4ec59e
DispatchPool works again, but performance is poor in some cases
cin
parents:
20
diff
changeset
|
247 using (var pool = new WorkerPool(0,100,1)) { |
| 16 | 248 int count = 10000; |
| 249 | |
| 250 double[] args = new double[count]; | |
| 251 var rand = new Random(); | |
| 252 | |
| 253 for (int i = 0; i < count; i++) | |
| 254 args[i] = rand.NextDouble(); | |
| 255 | |
| 256 var t = Environment.TickCount; | |
| 257 var res = args | |
| 258 .ChainedMap( | |
| 259 x => pool.Invoke( | |
| 260 () => Math.Sin(x * x) | |
| 261 ), | |
| 262 4 | |
| 263 ) | |
| 264 .Join(); | |
| 265 | |
| 266 Console.WriteLine("Map complete in {0} ms", Environment.TickCount - t); | |
| 267 | |
| 268 t = Environment.TickCount; | |
| 269 for (int i = 0; i < count; i++) | |
| 270 Assert.AreEqual(Math.Sin(args[i] * args[i]), res[i]); | |
| 271 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t); | |
| 272 Console.WriteLine("Max workers: {0}", pool.MaxRunningThreads); | |
| 273 } | |
| 274 } | |
| 275 | |
| 276 [TestMethod] | |
| 15 | 277 public void ParallelForEachTest() { |
| 278 | |
| 279 int count = 100000; | |
| 280 | |
| 281 int[] args = new int[count]; | |
| 282 var rand = new Random(); | |
| 283 | |
| 284 for (int i = 0; i < count; i++) | |
| 285 args[i] = (int)(rand.NextDouble() * 100); | |
| 286 | |
| 287 int result = 0; | |
| 288 | |
| 289 var t = Environment.TickCount; | |
| 290 args.ParallelForEach(x => Interlocked.Add(ref result, x), 4).Join(); | |
| 291 | |
| 292 Console.WriteLine("Iteration complete in {0} ms, result: {1}", Environment.TickCount - t, result); | |
| 293 | |
| 294 int result2 = 0; | |
| 295 | |
| 296 t = Environment.TickCount; | |
| 297 for (int i = 0; i < count; i++) | |
| 298 result2 += args[i]; | |
| 299 Assert.AreEqual(result2, result); | |
| 300 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t); | |
| 301 } | |
| 302 | |
| 303 [TestMethod] | |
| 10 | 304 public void ComplexCase1Test() { |
| 305 var flags = new bool[3]; | |
| 306 | |
| 307 // op1 (aync 200ms) => op2 (async 200ms) => op3 (sync map) | |
| 308 | |
| 309 var p = PromiseHelper | |
| 310 .Sleep(200, "Alan") | |
| 311 .Cancelled(() => flags[0] = true) | |
| 312 .Chain(x => | |
| 313 PromiseHelper | |
| 314 .Sleep(200, "Hi, " + x) | |
| 15 | 315 .Map(y => y) |
| 10 | 316 .Cancelled(() => flags[1] = true) |
| 317 ) | |
| 318 .Cancelled(() => flags[2] = true); | |
| 319 Thread.Sleep(300); | |
| 320 p.Cancel(); | |
| 321 try { | |
| 322 Assert.AreEqual(p.Join(), "Hi, Alan"); | |
| 323 Assert.Fail("Shouldn't get here"); | |
| 15 | 324 } catch (OperationCanceledException) { |
| 10 | 325 } |
| 326 | |
| 327 Assert.IsFalse(flags[0]); | |
| 328 Assert.IsTrue(flags[1]); | |
| 329 Assert.IsTrue(flags[2]); | |
| 330 } | |
| 15 | 331 } |
| 4 | 332 } |
| 333 |