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copied!<p>If you're worried that garbage collections are impacting performance, one of the best tools you can learn to use is the <a href="http://www.microsoft.com/download/en/details.aspx?id=16273" rel="nofollow">CLR Profiler</a>. This utility allows you to profile the heap allocations performed by your program, so that you can identify which exactly methods are generating garbage. Remember that a lot of non-obvious things can allocate onto the heap: concatenating strings, indexing dictionaries with enumeration keys, closures, delegates, etc. Even a little garbage, generated once per frame at 60+ frames per second, can quickly add up under the right circumstances.</p> <p>That said, what you've described doesn't sound like a problem with garbage collection to me. The GC is generally quick enough, even during a complete collection, to only cause a few frames to be dropped -- in other words, you'll notice a minor, annoying jerk every so often, but not a persistent slowdown. </p> <p>(Caveat: this only applies on the PC, which has a very sophisticated GC compared to other XNA platforms.)</p> <p>You should try attaching a profiler to your code to identify which methods are taking the longest to complete; if your problem isn't related to GC, this may be informative. In the past, I've used <a href="http://www.eqatec.com/Profiler/Home.aspx" rel="nofollow">EQATEC</a>, although I've had issues with some of their more recent versions. You can try that one, or you can look around on Google for an alternative.</p>

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