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7621e38bf3
Add missing generic hp_timing support. It uses clock_gettime (CLOCK_MONOTONIC) which has unspecified starting time, nano-second accuracy, and should faster on architectures that implementes the symbol as vDSO. Checked on aarch64-linux-gnu, x86_64-linux-gnu, and i686-linux-gnu. I also checked the builds for all afected ABIs. * benchtests/Makefile (USE_CLOCK_GETTIME) Remove. * benchtests/README: Update description. * benchtests/bench-timing.h: Default to hp-timing. * sysdeps/generic/hp-timing.h (HP_TIMING_DIFF, HP_TIMING_ACCUM_NT, HP_TIMING_PRINT): Remove. (HP_TIMING_NOW): Add generic implementation. (hp_timing_t): Change to uint64_t.
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/* Define timing macros.
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Copyright (C) 2013-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#undef attribute_hidden
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#define attribute_hidden
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#define __clock_gettime clock_gettime
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#include <hp-timing.h>
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#include <stdint.h>
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#define GL(x) _##x
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#define GLRO(x) _##x
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typedef hp_timing_t timing_t;
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#define TIMING_TYPE "hp_timing"
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#define TIMING_INIT(res) ({ (res) = 1; })
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#define TIMING_NOW(var) HP_TIMING_NOW (var)
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#define TIMING_DIFF(diff, start, end) HP_TIMING_DIFF ((diff), (start), (end))
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#define TIMING_ACCUM(sum, diff) HP_TIMING_ACCUM_NT ((sum), (diff))
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#define TIMING_PRINT_MEAN(d_total_s, d_iters) \
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printf ("\t%g", (d_total_s) / (d_iters))
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