From 6a2cb2c14e97be59ae93c5a869f80d1d62688a49 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf.pld@gmail.com>
Date: Fri, 29 Sep 2017 18:29:39 +0200
Subject: [PATCH] Calculate timer resolution.

---
 client/TracyProfiler.cpp | 11 +++++++++++
 client/TracyProfiler.hpp |  1 +
 2 files changed, 12 insertions(+)

diff --git a/client/TracyProfiler.cpp b/client/TracyProfiler.cpp
index 2eaff09d..74a90d02 100755
--- a/client/TracyProfiler.cpp
+++ b/client/TracyProfiler.cpp
@@ -358,6 +358,17 @@ void Profiler::CalibrateDelay()
     const auto df = t0 - f0;
     m_delay = ( dt - df ) / Events;
 
+    uint64_t mindiff = std::numeric_limits<uint64_t>::max();
+    for( int i=0; i<Iterations * 10; i++ )
+    {
+        const auto t0 = GetTime();
+        const auto t1 = GetTime();
+        const auto dt = t1 - t0;
+        if( dt > 0 && dt < mindiff ) mindiff = dt;
+    }
+
+    m_resolution = mindiff;
+
     enum { Bulk = 1000 };
     moodycamel::ConsumerToken token( s_queue );
     int left = Events * 2;
diff --git a/client/TracyProfiler.hpp b/client/TracyProfiler.hpp
index 8e90afdd..c32b887a 100755
--- a/client/TracyProfiler.hpp
+++ b/client/TracyProfiler.hpp
@@ -63,6 +63,7 @@ private:
     void CalibrateDelay();
 
     double m_timerMul;
+    uint64_t m_resolution;
     uint64_t m_delay;
     int64_t m_timeBegin;
     uint64_t m_mainThread;