diff --git a/.travis.yml b/.travis.yml
index c4dac96a..12019901 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -84,8 +84,6 @@ matrix:
 
 
 
-
-
 before_script:
   - if [ -n "$GCC_VERSION" ]; then export CXX="g++-${GCC_VERSION}" CC="gcc-${GCC_VERSION}"; fi
   - if [ -n "$CLANG_VERSION" ]; then export CXX="clang++-${CLANG_VERSION}" CC="clang-${CLANG_VERSION}"; fi
diff --git a/tests/includes.h b/tests/includes.h
index c9056a02..4d35d6b8 100644
--- a/tests/includes.h
+++ b/tests/includes.h
@@ -7,6 +7,7 @@
 #include <exception>
 #include <fstream>
 #include <ostream>
+#include <iostream>
 #include <string>
 
 #define SPDLOG_TRACE_ON
diff --git a/tests/test_mpmc_q.cpp b/tests/test_mpmc_q.cpp
index 21b2e8a2..19c6cdf3 100644
--- a/tests/test_mpmc_q.cpp
+++ b/tests/test_mpmc_q.cpp
@@ -2,25 +2,27 @@
 
 using namespace std::chrono;
 using std::chrono::milliseconds;
-using std::chrono::system_clock;
+using test_clock = std::chrono::high_resolution_clock ;
 
-system_clock::time_point now_millis()
+
+static milliseconds millis_from(const test_clock::time_point &tp0)
 {
-    return time_point_cast<milliseconds>(system_clock::now());
+    return std::chrono::duration_cast<milliseconds>(test_clock::now()-tp0);
 }
 TEST_CASE("dequeue-empty-nowait", "[mpmc_blocking_q]")
 {
     size_t q_size = 100;
-    milliseconds tolerance_wait(10);
+    milliseconds tolerance_wait(30);
     spdlog::details::mpmc_blocking_queue<int> q(q_size);
     int popped_item;
 
-    auto millis_0 = now_millis();
+    auto start = test_clock::now();
     auto rv = q.dequeue_for(popped_item, milliseconds::zero());
-    auto millis_1 = now_millis();
+    auto delta_ms = millis_from(start);
 
     REQUIRE(rv == false);
-    REQUIRE((millis_1 - millis_0) <= tolerance_wait);
+    INFO("Delta " << delta_ms.count() << " millis");
+    REQUIRE(delta_ms <= tolerance_wait);
 }
 
 TEST_CASE("dequeue-empty-wait", "[mpmc_blocking_q]")
@@ -28,16 +30,17 @@ TEST_CASE("dequeue-empty-wait", "[mpmc_blocking_q]")
 
     size_t q_size = 100;
     milliseconds wait_ms(250);
-    milliseconds tolerance_wait(10);
+    milliseconds tolerance_wait(30);
 
     spdlog::details::mpmc_blocking_queue<int> q(q_size);
     int popped_item;
-    auto millis_0 = now_millis();
+    auto start = test_clock::now();
     auto rv = q.dequeue_for(popped_item, wait_ms);
-    auto millis_1 = now_millis();
-    auto delta_ms = millis_1 - millis_0;
+    auto delta_ms = millis_from(start);
 
     REQUIRE(rv == false);
+
+    INFO("Delta " << delta_ms.count() << " millis");
     REQUIRE(delta_ms >= wait_ms);
     REQUIRE(delta_ms <= wait_ms + tolerance_wait);
 }
@@ -47,15 +50,17 @@ TEST_CASE("enqueue_nowait", "[mpmc_blocking_q]")
 
     size_t q_size = 1;
     spdlog::details::mpmc_blocking_queue<int> q(q_size);
-    milliseconds tolerance_wait(10);
+    milliseconds tolerance_wait(30);
 
     q.enqueue(1);
     REQUIRE(q.overrun_counter() == 0);
 
-    auto millis_0 = now_millis();
+    auto start = test_clock::now();
     q.enqueue_nowait(2);
-    auto millis_1 = now_millis();
-    REQUIRE((millis_1 - millis_0) <= tolerance_wait);
+    auto delta_ms = millis_from(start);
+
+    INFO("Delta " << delta_ms.count() << " millis");
+    REQUIRE(delta_ms <= tolerance_wait);
     REQUIRE(q.overrun_counter() == 1);
 }