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: [PATCH] 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(-) 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 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(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(); } #else