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A comment on FFmpeg devs boast of another 100x leap thanks to handwritten assembly code. Parent comment

Re:FFmpeg devs boast of another 100x leap thanks to handwrit... by mhh__ on Sunday July 20, 2025 @08:03PM (#44630572)
Compilers are extremely good considering the amount of crap they have to churn through but they have zero information (by default) about how the program is going to be used so it's not hard to beat them.
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Re:FFmpeg devs boast of another 100x leap thanks to handwrit... by haiku2077 on Sunday July 20, 2025 @08:19PM (#44630656)
If anyone is curious to learn more, look up "profile-guided optimization" which observes the running program and feeds that information back into the compiler
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