3 ms·
Very interesting, thanks! It's seems like a great Idea to reuse libFuzzer, I just hope that the JNI overhead isn't too big. Openjdk 16 has https://openjdk.java
by The_rationalist 6y ago
Very interesting, thanks!
It's seems like a great Idea to reuse libFuzzer, I just hope that the JNI overhead isn't too big.
Openjdk 16 has https://openjdk.java.net/jeps/389 https://openjdk.java.net/jeps/389
But it's not obvious if it improve performance
- fhenneke 6y agoThanks for the link, I wasn't aware of this new feature! Our coverage instrumentation does not rely on JNI calls, only the libFuzzer callbacks do, so the overhead shouldn't be too substantial. It's certainly not a proper benchmark, but one core on my laptop can fuzz the more non-trivial examples at around 10,000 exec/s. We are also working on some further performance improvements.