update docs

1 files changed, 1 insertions, 0 deletions

diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index 8b9c1e50..90c255e3 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -176,6 +176,7 @@ static void usage(u8 *argv0, int more_help) {
       "                  pacemaker mode (minutes of no new finds). 0 = "
       "immediately,\n"
       "                  -1 = immediately and together with normal mutation.\n"
+      "                  Note: this option is usually not very effective\n"
       "  -c program    - enable CmpLog by specifying a binary compiled for "
       "it.\n"
       "                  if using QEMU/FRIDA or the fuzzing target is "