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| author | van Hauser <vh@thc.org> | 2019-05-29 09:42:13 +0200 |
|---|---|---|
| committer | van Hauser <vh@thc.org> | 2019-05-29 09:42:13 +0200 |
| commit | 429afb710cb0037f925ea8e9c6c91dfcaa862f45 (patch) | |
| tree | 74fa97e2543a05dabd3e95782fc366648b641eeb /afl-system-config | |
| parent | 4e74299d72365c78632476edfacdc1e0590c4a3d (diff) | |
| download | afl++-429afb710cb0037f925ea8e9c6c91dfcaa862f45.tar.gz | |
performance script and info
Diffstat (limited to 'afl-system-config')
| -rwxr-xr-x | afl-system-config | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/afl-system-config b/afl-system-config new file mode 100755 index 00000000..88564c20 --- /dev/null +++ b/afl-system-config @@ -0,0 +1,15 @@ +#!/bin/sh +echo This reconfigures the system to have a better fuzzing performance +sysctl -w kernel.core_pattern=core +sysctl -w kernel.randomize_va_space=0 +sysctl -w kernel.sched_child_runs_first=1 +sysctl -w kernel.sched_autogroup_enabled=1 +sysctl -w kernel.sched_migration_cost_ns=50000000 +sysctl -w kernel.sched_latency_ns=250000000 +echo never > /sys/kernel/mm/transparent_hugepage/enabled +echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor > /dev/null +echo +echo It is recommended to boot the kernel with lots of security off - if you are running a machine that is in a secured network - so set this: +echo '/etc/default/grub:GRUB_CMDLINE_LINUX_DEFAULT="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"' +echo +echo Also use AFL_TMPDIR to use a tmpfs for the input file |