oprofile

• http://oprofile.sourceforge.net/news/^{Image Removed}

This is a sampling profiler, so it has minimal impact on Traffic Servers performance.

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Google profiler

• Main Page: http://code.google.com/p/google-perftools/^{Image Removed}
• CPU Profiler: http://google-perftools.googlecode.com/svn/trunk/doc/cpuprofile.html^{Image Removed}

This too is a sampling profiler, so it has minimal impact on Traffic Servers performance.Server's performance. Support for the profiler needs to be compiled into Traffic Server for it to work. There is an option to add profiling support when running configure and is described in the steps below.

Install the Google's perftools development package, the command may vary on the OS, below is on Fedora 12:

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Callgrind

• http://valgrind.org/info/tools.html^{Image Removed}

Callgrind is will slow down the performance of traffic server significantly.