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
MultiThreadTester可以指定线程数,多个线程争抢计数。
1: class MultiThreadTester : ThreadTester
2: {
3: private Stopwatch _aStopWatch = new Stopwatch();
4: private readonly int _threadCount = 0;
5: private readonly object _counterLock = new object();
6:
7: public MultiThreadTester(int threadCount)
8: {
9: this._threadCount = threadCount;
10: }
11:
12: public override void Start()
13: {
14: _aStopWatch.Start();
15:
16: for (int i = 0; i < _threadCount; i++)
17: {
18: Thread aThread = new Thread(() => WorkInThread());
19: aThread.Start();
20: }
21: }
22:
23: public override long GetElapsedMillisecondsOfIncreaseCounter()
24: {
25: return this._aStopWatch.ElapsedMilliseconds;
26: }
27:
28: public override bool IsTesterRunning()
29: {
30: return _aStopWatch.IsRunning;
31: }
32:
33: private void WorkInThread()
34: {
35: while (true)
36: {
37: lock (_counterLock)
38: {
39: if (this.GetCounter() > ThreadTester.MAX_COUNTER_NUMBER)
40: {
41: _aStopWatch.Stop();
42: break;
43: }
44:
45: this.IncreaseCounter();
46: }
47: }
48: }
49: }
|
Program的Main函数中,根据用户的选择来决定执行哪个测试类。
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