From 1d7c76d14153d0bcb03b360e9c78f1ca1317d643 Mon Sep 17 00:00:00 2001
From: van Hauser <vh@thc.org>
Date: Wed, 24 Jun 2020 17:37:16 +0200
Subject: [PATCH] decrease time to sync for main

---
 src/afl-fuzz.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index 29563f54..5a5a33d2 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -1347,7 +1347,15 @@ int main(int argc, char **argv_orig, char **envp) {
 
     if (!skipped_fuzz && !afl->stop_soon && afl->sync_id) {
 
-      if (!(sync_interval_cnt++ % SYNC_INTERVAL)) { sync_fuzzers(afl); }
+      if (unlikely(afl->is_main_node)) {
+
+        if (!(sync_interval_cnt++ % (SYNC_INTERVAL / 2))) { sync_fuzzers(afl); }
+
+      } else {
+
+        if (!(sync_interval_cnt++ % SYNC_INTERVAL)) { sync_fuzzers(afl); }
+
+      }
 
     }