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author | Morph <39850852+Morph1984@users.noreply.github.com> | 2023-07-27 18:40:56 -0400 |
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committer | Morph <39850852+Morph1984@users.noreply.github.com> | 2023-07-27 18:40:56 -0400 |
commit | bb4e67615502af559c940e4bbbf93b00ed0e4bc1 (patch) | |
tree | 862edbd36faa79660ac6b2d777abeba4b039870b | |
parent | a1c355051e030d48b24044023c3fb35d2640386b (diff) |
wall_clock: Increase precision requirements
We are providing a conversion to nanoseconds in NativeClock, which is more precise than the GPU tick.
-rw-r--r-- | src/common/wall_clock.cpp | 4 |
1 files 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<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 |