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Diffstat (limited to 'docs/perf_tips.txt')
| -rw-r--r-- | docs/perf_tips.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/docs/perf_tips.txt b/docs/perf_tips.txt index 6906d5ab..799691c7 100644 --- a/docs/perf_tips.txt +++ b/docs/perf_tips.txt @@ -188,6 +188,15 @@ There are several OS-level factors that may affect fuzzing speed: SCHED_RR - can usually speed things up, too, but needs to be done with care. + - Disable all the spectre, meltdown etc. security countermeasures in the + kernel if your machine is properly seperated: + "ibpb=off ibrs=off kpti=off l1tf=off mds=off mitigations=off + no_stf_barrier noibpb noibrs nopcid nopti nospec_store_bypass_disable + nospectre_v1 nospectre_v2 pcid=off pti=off spec_store_bypass_disable=off + spectre_v2=off stf_barrier=off" + In most Linux distributions you can put this into a /etc/default/grub + variable. + 9) If all other options fail, use -d ------------------------------------ |