From a19f14eadeabaf33d3bc5718f7ec80b43e8aa846 Mon Sep 17 00:00:00 2001
From: Giulio Starace <giulio.starace@gmail.com>
Date: Tue, 28 Apr 2026 16:22:46 +0200
Subject: [PATCH] Tighten C++ UNSYNC_MULTISTREAM threshold: flag when sync
 calls < stream creates

---
 kernelguard.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernelguard.py b/kernelguard.py
index f086847..cc5c4fa 100644
--- a/kernelguard.py
+++ b/kernelguard.py
@@ -1321,7 +1321,8 @@ def detect_unsync_multistream(code: str | SubmissionFacts) -> list[dict]:
                 "high",
                 f"C++: {cpp_stream_creates} getStreamFromPool calls, no sync/wait primitives",
             ))
-        elif cpp_sync_calls * 2 < cpp_stream_creates:
+        elif cpp_sync_calls < cpp_stream_creates:
+            # Under-synchronized: fewer sync/wait calls than stream creates (C++)
             candidates.append((
                 "medium",
                 f"C++: {cpp_stream_creates} getStreamFromPool calls, only {cpp_sync_calls} sync/wait calls",