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diff --git a/docs/FAQ.md b/docs/FAQ.md index f1cffe00..3d3dce20 100644 --- a/docs/FAQ.md +++ b/docs/FAQ.md @@ -180,6 +180,27 @@ If you find an interesting or important question missing, submit it via [best_practices.md#improving-stability](best_practices.md#improving-stability). </p></details> +<details> + <summary id="what-are-power-schedules">What are power schedules?</summary><p> + + Not every item in our queue/corpus is the same, some are more interesting, + others provide little value. + A power schedule measures how "interesting" a value is, and depending on + the calculated value spends more or less time mutating it. + + AFL++ comes with several power schedules, initially ported from [AFLFast](https://github.com/mboehme/aflfast) + however modified to be more effective and several more modes added. + + The most effective modes are '-p fast` (default) and `-p explore`. + + If you fuzz with several parallel afl-fuzz instances, then it is beneficial + to assign a different schedule to each instance, however the majority should + be `fast` and `explore`. + + It does not make sense to explain the details of the calculation and + reasoning behind all of the schedules. If you are interested, read the source + code and the AFLFast paper. + ## Troubleshooting <details> |