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d064591266
Further improve the timings of the string benchmarks. Ensure most take between 1 and 4 seconds to improve accuracy. Overall time taken increases by 35%. Tested on AArch64. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> * benchtests/bench-math-inlines.c: Increase iterations. * benchtests/bench-memcmp.c: Likewise. * benchtests/bench-rawmemchr.c: Likewise. * benchtests/bench-strcmp.c: Likewise. * benchtests/bench-strcpy_chk.c: Likewise. * benchtests/bench-string.h (INNER_LOOP_ITERS8): Add define. (INNER_LOOP_ITERS_MEDIUM): Increase iterations. (INNER_LOOP_ITERS_SMALL): Likewise. * benchtests/bench-strncat.c: Increase iterations. * benchtests/bench-strncmp.c: Increase iterations. * benchtests/bench-strncpy.c: Reduce iterations for wide strings. * benchtests/bench-strrchr.c: Increase iterations. * benchtests/bench-strstr.c: Keep iterations unchanged. * benchtests/bench-strtod.c: Increase iterations.
115 lines
2.4 KiB
C
115 lines
2.4 KiB
C
/* Measure strtod implementation.
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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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#define TEST_MAIN
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#define TEST_NAME "strtod"
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#include <stdio.h>
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#include <stdlib.h>
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#include "bench-timing.h"
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#undef INNER_LOOP_ITERS
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#define INNER_LOOP_ITERS 131072
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static const char *inputs[] =
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{
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"1e308",
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"100000000e300",
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"0x1p1023",
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"0x1000p1011",
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"0x1p1020",
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"0x0.00001p1040" "1e-307",
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"0.000001e-301",
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"0.0000001e-300",
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"0.00000001e-299",
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"1000000e-313",
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"10000000e-314",
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"100000000e-315",
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"0x1p-1021",
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"0x1000p-1033",
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"0x10000p-1037",
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"0x0.001p-1009",
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"0x0.0001p-1005",
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"12.345",
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"12.345e19",
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"-.1e+9",
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".125",
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"1e20",
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"0e-19",
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"4\00012",
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"5.9e-76",
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"0x1.4p+3",
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"0xAp0",
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"0x0Ap0",
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"0x0A",
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"0xA0",
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"0x0.A0p8",
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"0x0.50p9",
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"0x0.28p10",
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"0x0.14p11",
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"0x0.0A0p12",
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"0x0.050p13",
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"0x0.028p14",
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"0x0.014p15",
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"0x00.00A0p16",
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"0x00.0050p17",
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"0x00.0028p18",
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"0x00.0014p19",
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"0x1p-1023",
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"0x0.8p-1022",
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"Inf",
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"-Inf",
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"+InFiNiTy",
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"0x80000Ap-23",
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"1e-324",
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"0x100000000000008p0",
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"0x100000000000008.p0",
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"0x100000000000008.00p0",
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"0x10000000000000800p0",
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"0x10000000000000801p0",
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NULL
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};
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int
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do_bench (void)
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{
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const size_t iters = INNER_LOOP_ITERS;
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for (size_t i = 0; inputs[i] != NULL; ++i)
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{
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char *ep;
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timing_t start, stop, cur;
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printf ("Input %-24s:", inputs[i]);
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TIMING_NOW (start);
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for (size_t j = 0; j < iters; ++j)
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strtod (inputs[i], &ep);
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TIMING_NOW (stop);
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TIMING_DIFF (cur, start, stop);
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TIMING_PRINT_MEAN ((double) cur, (double) iters);
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putchar ('\n');
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}
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return 0;
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}
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#define TEST_FUNCTION do_bench ()
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#include "../test-skeleton.c"
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