The key to understanding and improving performance is to examine as many aspects of code performance as possible. Performance bottlenecks sometimes lie in the way your code calls methods in third-party or framework assemblies but, without the source code, problems like this can be hard to identify.
Performance Profiler is a code profiling tool, used
to identify performance issues in .NET applications. Version 7.0 introduces
integrated decompilation, which lets you explore performance bottlenecks even in
assemblies for which source code isn’t available.
decompilation is powered by .NET Reflector, an assembly browser and decompiler.
This technology is incorporated into the profiler, so even
if you’re working on a legacy application, or your application references third-party
code, you can get right to the root of the performance issue. You
won’t even need to leave the
profiling environment. Integrated decompilation can also highlight ways in
which you aren’t using third-party controls efficiently, or where those
controls aren’t performing as well as expected.
Profiling Assemblies Without Source
When you’re profiling methods and assemblies with no source code file, you can generate source code from the profiler interface. Begin profiling, and select an area on the timeline that you want to investigate. In the Call Tree View, select the method that you would like to explore and click the Decompile button in the Source Code View:
This generates source code for the method. You can then browse and navigate the automatically
generated code as if it were your own. The first line of the method body is
If you have the assembly’s .pdb file, you
can even view line-level timings for the decompiled code, letting you identify
the exact line that caused the bottleneck. The heat map alongside the vertical
scroll bar helps you jump directly to the lines of code that account for the
greatest execution time:
do the performance problems in your
applications lie in your own code or elsewhere? With ANTS Performance Profiler,
you can pin down the bottleneck wherever it lies.
To learn more, simply visit
the Red Gate website and help yourself to a free 14-day
free trial of ANTS Performance Profiler.