Beautiful Hack: Using Mono's Profiler to find Hard Memory Leaks

Alan McGovern of MonoTorrent, Moonlight and Mono Introspect fame has written a blog post explaining how he used the new Mono Profiling interface to write a custom memory leak detector for Moonlight.

His post is a step-by-step document on how he created a new loadable profiling module that the Mono runtime uses. He then registers for listening to profiling events for the GC roots (MONO_PROFILE_GC_ROOTS) and then tracks the GC handle use.

This is how he found a difficult memory leak involving Mono's VM, the browser Javascript VM and the C++ code that backed every Moonlight object.

Hard core hacking reading.

Posted on 06 Dec 2010 by Miguel de Icaza
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