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| -rw-r--r-- | README.md | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/README.md b/README.md index a5d4e116..074be4b0 100644 --- a/README.md +++ b/README.md @@ -429,7 +429,8 @@ to be used in fuzzing! :-) In this final step we fuzz the target. There are not that many useful options to run the target - unless you want to -use many CPU cores for the fuzzing, which will make the fuzzing much more useful. +use many CPU cores/threads for the fuzzing, which will make the fuzzing much +more useful. If you just use one CPU for fuzzing, then you are fuzzing just for fun and not seriously :-) @@ -470,15 +471,15 @@ is: All labels are explained in [docs/status_screen.md](docs/status_screen.md) -#### b) Using multiple cores +#### b) Using multiple cores/threads -If you want to seriously fuzz then use as many cores as possible to fuzz your -target. +If you want to seriously fuzz then use as many cores/threads as possible to +fuzz your target. On the same machine - due to the nature how afl++ works - there is a maximum -number of CPU cores that are useful, more and the overall performance degrades -instead. This value depends on the target and the limit is between 24 and 64 -cores per machine. +number of CPU cores/threads that are useful, more and the overall performance +degrades instead. This value depends on the target and the limit is between 48 +and 96 cores/threads per machine. There should be one main fuzzer (`-M main` option) and as many secondary fuzzers (eg `-S variant1`) as you cores that you use. |