These are some of the projects I've been working on lately.
Multicrush is a wrapper around pngcrush that distributes the work of brute-force compressing a single image over several pngcrush processes. This gets you a slightly less than a linear speedup, caused by different compression methods having slightly different durations. For example, I have measured a speedup of 1.92 on a 2-core Intel T5300, and 3.86 on a 4-core Intel Q6600.
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