线程上下文切换的性能损耗测试
作者:网络转载 发布时间:[ 2014/6/18 14:20:07 ] 推荐标签:性能损耗测试 性能测试
SingleThreadTester是单线程计数。
1: class SingleThreadTester : ThreadTester
2: {
3: private Stopwatch _aStopWatch = new Stopwatch();
4:
5: public override void Start()
6: {
7: _aStopWatch.Start();
8:
9: Thread aThread = new Thread(() => WorkInThread());
10: aThread.Start();
11: }
12:
13: public override long GetElapsedMillisecondsOfIncreaseCounter()
14: {
15: return this._aStopWatch.ElapsedMilliseconds;
16: }
17:
18: public override bool IsTesterRunning()
19: {
20: return _aStopWatch.IsRunning;
21: }
22:
23: private void WorkInThread()
24: {
25: while (true)
26: {
27: if (this.GetCounter() > ThreadTester.MAX_COUNTER_NUMBER)
28: {
29: _aStopWatch.Stop();
30: break;
31: }
32:
33: this.IncreaseCounter();
34: }
35: }
36: }
|
TwoThreadSwitchTester是两个线程交替计数。
1: class TwoThreadSwitchTester : ThreadTester
2: {
3: private Stopwatch _aStopWatch = new Stopwatch();
4: private AutoResetEvent _autoResetEvent = new AutoResetEvent(false);
5:
6: public override void Start()
7: {
8: _aStopWatch.Start();
9:
10: Thread aThread1 = new Thread(() => Work1InThread());
11: aThread1.Start();
12:
13: Thread aThread2 = new Thread(() => Work2InThread());
14: aThread2.Start();
15: }
16:
17: public override long GetElapsedMillisecondsOfIncreaseCounter()
18: {
19: return this._aStopWatch.ElapsedMilliseconds;
20: }
21:
22: public override bool IsTesterRunning()
23: {
24: return _aStopWatch.IsRunning;
25: }
26:
27: private void Work1InThread()
28: {
29: while (true)
30: {
31: _autoResetEvent.WaitOne();
32:
33: this.IncreaseCounter();
34:
35: if (this.GetCounter() > ThreadTester.MAX_COUNTER_NUMBER)
36: {
37: _aStopWatch.Stop();
38: break;
39: }
40:
41: _autoResetEvent.Set();
42: }
43: }
44:
45: private void Work2InThread()
46: {
47: while (true)
48: {
49: _autoResetEvent.Set();
50: _autoResetEvent.WaitOne();
51: this.IncreaseCounter();
52:
53: if (this.GetCounter() > ThreadTester.MAX_COUNTER_NUMBER)
54: {
55: _aStopWatch.Stop();
56: break;
57: }
58: }
59: }
60: }
|
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