Julian Jose
8157437273
* Add missing copyright headers in rocprofiler-systems * Update python-tests * Update causal test --------- Co-authored-by: David Galiffi <David.Galiffi@amd.com>
43 línte
1.0 KiB
C++
43 línte
1.0 KiB
C++
/*************************************************************************
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* Copyright (c) 2016-2022, NVIDIA CORPORATION. All rights reserved.
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* Modifications Copyright (c) 2020-2022 Advanced Micro Devices, Inc. All rights reserved.
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*
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* See LICENSE.txt for license information
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************************************************************************/
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#include "timer.h"
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// Make sure to compile this translation unit with the host compiler and not
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// nvcc, lest you hit an internal compiler error (ICE) with GCC 10.3.0
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#include <chrono>
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namespace
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{
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std::uint64_t
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now()
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{
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using clock = std::chrono::steady_clock;
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return std::chrono::duration_cast<std::chrono::nanoseconds>(
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clock::now().time_since_epoch())
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.count();
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}
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} // namespace
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timer::timer() { t0 = now(); }
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double
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timer::elapsed() const
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{
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std::uint64_t t1 = now();
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return 1.e-9 * (t1 - t0);
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}
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double
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timer::reset()
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{
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std::uint64_t t1 = now();
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double ans = 1.e-9 * (t1 - t0);
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t0 = t1;
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return ans;
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}
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