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Re:60x speed-up of Linux “perf” by xuhu on Thursday September 09, 2021 @04:39PM (#28474389)
Afl-fuzz runs a program until main() and then forks it repeatedly. An empty main() can be called at least 10000 times per second this way.
Re:60x speed-up of Linux “perf” by xxpor on Thursday September 09, 2021 @08:53PM (#28476558)
With AFL++ you can even determine exactly where the fork happens:

https://github.com/AFLplusplus/AFLplusplus/blob/stable/instr...