Haiku set explicitly to performance.
No command line to set through afl-system-config (the only one is a GUI).
MODIFY
include/afl-fuzz.h
include/afl-fuzz.h
#include <sys/sysctl.h>
#endif /* __APPLE__ || __FreeBSD__ || __OpenBSD__ */
+#if defined(__HAIKU__)
+ #include <kernel/OS.h>
+ #include <kernel/scheduler.h>
+#endif
+
/* For systems that have sched_setaffinity; right now just Linux, but one
can hope... */

MODIFY
src/afl-fuzz.c
src/afl-fuzz.c
@@ -1057,6 +1057,11 @@ int main(int argc, char **argv_orig, char **envp) {
bind_to_free_cpu(afl);
#endif /* HAVE_AFFINITY */
+ #ifdef __HAIKU__
+ /* Prioritizes performance over power saving */
+ set_scheduler_mode(SCHEDULER_MODE_LOW_LATENCY);
+ #endif
+
afl->fsrv.trace_bits =
afl_shm_init(&afl->shm, afl->fsrv.map_size, afl->non_instrumented_mode);

Haiku set explicitly to performance.

No command line to set through afl-system-config (the only one is a GUI).