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Diffstat (limited to 'docs/perf_tips.txt')
| -rw-r--r-- | docs/perf_tips.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/perf_tips.txt b/docs/perf_tips.txt index 215895b6..2fa19234 100644 --- a/docs/perf_tips.txt +++ b/docs/perf_tips.txt @@ -50,6 +50,9 @@ Even if you don't have a lightweight harness for a particular target, remember that you can always use another, related library to generate a corpus that will be then manually fed to a more resource-hungry program later on. +Also note that reading the fuzzing input via stdin is faster than reading from +a file. + 3) Use LLVM instrumentation --------------------------- @@ -161,6 +164,11 @@ and not waste CPU time. There are several OS-level factors that may affect fuzzing speed: + - If you have no risk of power loss then run your fuzzing on a tmpfs + partition. This increases the performance noticably. + Alternatively you can use AFL_TMPDIR to point to a tmpfs location to + just write the input file to a tmpfs. + - High system load. Use idle machines where possible. Kill any non-essential CPU hogs (idle browser windows, media players, complex screensavers, etc). |