StackOverflow2013

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plurals

PO
primarykey
Id
8806044
data
AcceptedAnswerId
0
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0
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1
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CreationDate
2012-01-10T15:45:33.250
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2012-01-10T16:01:35.437
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2012-01-10T16:01:35.437
LastEditorUserId
648368
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648368
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1350264
PostTypeId
2
Score
2
ViewCount
0
LastEditorDisplayName
text
Body
The Problem is first at your Test Code. you used stopwatch.Elapsed.Milliseconds which shows only the milisecond part of the Elapsed time, use TotalMilliseconds to get the whole part... If no exception is thrown, the difference is minimal But the real question is "Do i need to check for exceptions or let C# handle the Exception throwing?" Clearly... handle alone... Try running this: <pre><code>private void TryCatchPerformance() { int iterations = 10000; textBox1.Text = ""; Stopwatch stopwatch = Stopwatch.StartNew(); int c = 0; for (int i = 0; i < iterations; i++) { try { c += i / (i % 50); } catch (Exception) { } } stopwatch.Stop(); Debug.WriteLine(String.Format("With try catch: {0}", stopwatch.Elapsed.TotalSeconds)); Stopwatch stopwatch2 = Stopwatch.StartNew(); int c2 = 0; for (int i = 0; i < iterations; i++) { int iMod50 = (i%50); if(iMod50 > 0) c2 += i / iMod50; } stopwatch2.Stop(); Debug.WriteLine( String.Format("Without try catch: {0}", stopwatch2.Elapsed.TotalSeconds)); } </code></pre> Output: OBSOLETE : Look below! With try catch: 1.9938401 Without try catch: 8.92E-05 Amazing, only 10000 objects, with 200 Exceptions. CORRECTION: I Run my code on DEBUG and VS Written Exception to Output window.. These are the Results of the RELEASE A lot less overhead, but still 7,500 % improvement. With try catch: 0.0546915 Checking Alone: 0.0007294 With try catch Throwing my own same Exception object: 0.0265229
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1. POtry catch performance
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1. USTomer W
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1. USTomer W
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1. COGiven his test shows greater than one millisecond differences, showing microseconds doesn't appear to be very useful
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