From 75beeaf743ae717a91aab5f2a6c5cd43f771b557 Mon Sep 17 00:00:00 2001
From: liaogang <liaogang@baidu.com>
Date: Mon, 19 Sep 2016 13:37:31 +0800
Subject: [PATCH] Fix unit  test stack trace bug on MAC OS

---
 paddle/utils/tests/test_CustomStackTrace.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paddle/utils/tests/test_CustomStackTrace.cpp b/paddle/utils/tests/test_CustomStackTrace.cpp
index 26ca4c678a6..3e665021471 100644
--- a/paddle/utils/tests/test_CustomStackTrace.cpp
+++ b/paddle/utils/tests/test_CustomStackTrace.cpp
@@ -45,6 +45,7 @@ void testNormalImpl(const std::function<void(
   size_t cntDown = countDown;
   while (cntDown-- > 0) {
     startBarrier.wait();
+    sleep(1);
     doneBarrier.wait();
     ASSERT_TRUE(tracer.empty());
   }
-- 
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