From bb4e67615502af559c940e4bbbf93b00ed0e4bc1 Mon Sep 17 00:00:00 2001
From: Morph <39850852+Morph1984@users.noreply.github.com>
Date: Thu, 27 Jul 2023 18:40:56 -0400
Subject: wall_clock: Increase precision requirements

We are providing a conversion to nanoseconds in NativeClock, which is more precise than the GPU tick.
---
 src/common/wall_clock.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/common/wall_clock.cpp b/src/common/wall_clock.cpp
index dc0dcbd68..71e15ab4c 100644
--- a/src/common/wall_clock.cpp
+++ b/src/common/wall_clock.cpp
@@ -56,12 +56,12 @@ std::unique_ptr<WallClock> CreateOptimalClock() {
 #ifdef ARCHITECTURE_x86_64
     const auto& caps = GetCPUCaps();
 
-    if (caps.invariant_tsc && caps.tsc_frequency >= WallClock::GPUTickFreq) {
+    if (caps.invariant_tsc && caps.tsc_frequency >= std::nano::den) {
         return std::make_unique<X64::NativeClock>(caps.tsc_frequency);
     } else {
         // Fallback to StandardWallClock if the hardware TSC
         // - Is not invariant
-        // - Is not more precise than GPUTickFreq
+        // - Is not more precise than 1 GHz (1ns resolution)
         return std::make_unique<StandardWallClock>();
     }
 #else
-- 
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