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From my understanding, odexed programs are programs that are pre-compiled for specific architecture.

It is obvious that this process would help decrease the startup time for the program.

Am I correct in thinking that odexing would have NO effect on the performance of the program once it is already loaded in memory? What about memory footprint?

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I would expect it to have an impact on both. An odexed app is optimized, not just precompiled. Android runs on a huge variety of hardware, so platform-specific optimizations could result in significant performance gains.

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