Find slow/ineffecient method calls in dotnet

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+4 Q:

Find slow/ineffecient method calls in dotnet

Hi,

I'm faced with a big old stack of method calls in some legacy code, one or some of which is creating a bottleneck and really slowing things down. Is there any quick way I can get a report on which method calls are taking the time, short of running in debug, stepping through and seeing where the cursor pauses?

+10 A:

Use a profiler. I personally use JetBrains dotTrace but that's mainly because I was given a free licence as an MVP. There are other tools available too, such as RedGate's ANTS. I haven't used the ANTS one myself.

There's a free profiler from Microsoft which targets .NET 2.0; I expect it would work with .NET 3.0 and 3.5 as well, but quite possibly not .NET 4 as that has a new CLR. My own experience with this is that it's somewhat limited, but can still be useful.

Jon Skeet 2010-04-20 11:07:45

+1 for JetBrains dotTrace, I love it :)

Cocowalla 2010-04-20 11:08:10

+1. I've tried ANTS before (trial version) and got on well with it. I don't know how it compares to dotTrace, but may be worth trialling both

AdaTheDev 2010-04-20 11:16:07

+3 A:

Try Eqatec

Joe R 2010-04-20 11:08:45

Interesting - I haven't come across that one before. I'll give it a try and see how it compares with dotTrace...

Jon Skeet 2010-04-20 11:10:19

Okay, I'm already somewhat put off by the fact that they claim it's free on the download page - but then you read on and find out that it's a free 30 day evaluation.

Jon Skeet 2010-04-20 11:14:05

@Jon, their Free license is for non-commercial projects. For commercial projects the user should purchase a Personal license.

Nick D 2010-04-20 11:50:05

@Nick D: Ah, I misread it as saying the personal was for even non-commercial use after 30 days.

Jon Skeet 2010-04-20 11:57:12

Marketing weasels up to their tricks again! At least it's free for non-commercial projects.

Joe R 2010-04-20 12:57:30

Richard Flamsholt 2010-04-20 13:28:50

@Richard - excellent! :) I'll have a look tomorrow.

Joe R 2010-04-20 14:04:40

@Joe: I don't think it was really a marketing problem in this case - I only expected it to be free for non-commercial use. I then just failed to read the licence terms properly :(

Jon Skeet 2010-04-20 14:54:13

+2 A:

SlimTune is another free and open source profiler.

wroks 2010-04-20 11:14:48

ansaurus

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Find slow/ineffecient method calls in dotnet

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