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git://sourceware.org/git/glibc.git
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Add memcpy/memmove/memset benchmarks with large data
Add memcpy, memmove and memset benchmarks with large data sizes. * benchtests/Makefile (string-benchset): Add memcpy-large, memmove-large and memset-large. * benchtests/bench-memcpy-large.c: New file. * benchtests/bench-memmove-large.c: Likewise. * benchtests/bench-memmove-large.c: Likewise. * benchtests/bench-string.h (TIMEOUT): Don't redefine.
This commit is contained in:
H.J. Lu
parent
aa7353ce5c
commit
a25322f4e8
@ -1,3 +1,12 @@
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2016-04-06 H.J. Lu <hongjiu.lu@intel.com>
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* benchtests/Makefile (string-benchset): Add memcpy-large,
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memmove-large and memset-large.
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* benchtests/bench-memcpy-large.c: New file.
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* benchtests/bench-memmove-large.c: Likewise.
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* benchtests/bench-memmove-large.c: Likewise.
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* benchtests/bench-string.h (TIMEOUT): Don't redefine.
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2016-04-05 H.J. Lu <hongjiu.lu@intel.com>
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* sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S: Force
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@ -38,7 +38,7 @@ string-benchset := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
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strcat strchr strchrnul strcmp strcpy strcspn strlen \
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strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
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strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
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strcoll
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strcoll memcpy-large memmove-large memset-large
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wcsmbs-benchset := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
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wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn \
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wmemchr wmemset wmemcmp
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123
benchtests/bench-memcpy-large.c
Normal file
123
benchtests/bench-memcpy-large.c
Normal file
@ -0,0 +1,123 @@
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/* Measure memcpy functions with large data sizes.
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Copyright (C) 2016 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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#ifndef MEMCPY_RESULT
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# define MEMCPY_RESULT(dst, len) dst
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# define START_SIZE (64 * 1024)
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# define MIN_PAGE_SIZE (getpagesize () + 32 * 1024 * 1024)
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# define TEST_MAIN
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# define TEST_NAME "memcpy"
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# define TIMEOUT (20 * 60)
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# include "bench-string.h"
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IMPL (memcpy, 1)
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#endif
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typedef char *(*proto_t) (char *, const char *, size_t);
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static void
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do_one_test (impl_t *impl, char *dst, const char *src,
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size_t len)
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{
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size_t i, iters = 16;
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timing_t start, stop, cur;
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/* Must clear the destination buffer updated by the previous run. */
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for (i = 0; i < len; i++)
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dst[i] = 0;
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if (CALL (impl, dst, src, len) != MEMCPY_RESULT (dst, len))
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{
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error (0, 0, "Wrong result in function %s %p %p", impl->name,
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CALL (impl, dst, src, len), MEMCPY_RESULT (dst, len));
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ret = 1;
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return;
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}
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if (memcmp (dst, src, len) != 0)
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{
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error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
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impl->name, dst, src);
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ret = 1;
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return;
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}
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TIMING_NOW (start);
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for (i = 0; i < iters; ++i)
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{
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CALL (impl, dst, src, len);
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}
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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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}
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static void
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do_test (size_t align1, size_t align2, size_t len)
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{
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size_t i, j;
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char *s1, *s2;
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align1 &= 63;
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if (align1 + len >= page_size)
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return;
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align2 &= 63;
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if (align2 + len >= page_size)
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return;
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s1 = (char *) (buf1 + align1);
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s2 = (char *) (buf2 + align2);
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for (i = 0, j = 1; i < len; i++, j += 23)
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s1[i] = j;
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printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
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FOR_EACH_IMPL (impl, 0)
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do_one_test (impl, s2, s1, len);
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putchar ('\n');
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}
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int
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test_main (void)
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{
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size_t i;
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test_init ();
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printf ("%23s", "");
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FOR_EACH_IMPL (impl, 0)
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printf ("\t%s", impl->name);
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putchar ('\n');
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for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
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{
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do_test (0, 0, i + 7);
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do_test (0, 3, i + 15);
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do_test (3, 0, i + 31);
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do_test (3, 5, i + 63);
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}
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return ret;
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}
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#include "../test-skeleton.c"
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123
benchtests/bench-memmove-large.c
Normal file
123
benchtests/bench-memmove-large.c
Normal file
@ -0,0 +1,123 @@
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/* Measure memmove functions with large data sizes.
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Copyright (C) 2016 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 BASE_PAGE_SIZE (1024 * 1024)
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#define START_SIZE (4 * 1024)
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#define MIN_PAGE_SIZE (getpagesize () + 16 * 1024 * 1024)
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#define TEST_MAIN
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#define TEST_NAME "memmove"
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#define TIMEOUT (20 * 60)
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#include "bench-string.h"
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IMPL (memmove, 1)
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typedef char *(*proto_t) (char *, const char *, size_t);
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static void
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do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
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size_t len)
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{
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size_t i, iters = 16;
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timing_t start, stop, cur;
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/* This also clears the destination buffer updated by the previous
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run. */
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memcpy (src, orig_src, len);
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char *res = CALL (impl, dst, src, len);
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if (res != dst)
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{
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error (0, 0, "Wrong result in function %s %p %p", impl->name,
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res, dst);
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ret = 1;
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return;
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}
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if (memcmp (dst, orig_src, len) != 0)
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{
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error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
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impl->name, dst, src);
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ret = 1;
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return;
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}
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TIMING_NOW (start);
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for (i = 0; i < iters; ++i)
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{
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CALL (impl, dst, src, len);
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}
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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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}
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static void
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do_test (size_t align1, size_t align2, size_t len)
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{
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size_t i, j;
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char *s1, *s2;
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align1 &= 127;
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if (align1 + len >= page_size)
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return;
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align2 &= 127;
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if (align2 + len >= page_size)
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return;
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s1 = (char *) (buf1 + align1);
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s2 = (char *) (buf2 + align2);
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for (i = 0, j = 1; i < len; i++, j += 23)
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s1[i] = j;
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printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
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FOR_EACH_IMPL (impl, 0)
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do_one_test (impl, s2, (char *) (buf2 + align1), s1, len);
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putchar ('\n');
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}
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int
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test_main (void)
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{
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size_t i;
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test_init ();
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printf ("%23s", "");
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FOR_EACH_IMPL (impl, 0)
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printf ("\t%s", impl->name);
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putchar ('\n');
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for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
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{
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do_test (0, 64, i + 7);
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do_test (0, 3, i + 15);
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do_test (3, 0, i + 31);
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do_test (3, 7, i + 63);
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do_test (9, 5, i + 127);
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}
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return ret;
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}
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#include "../test-skeleton.c"
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134
benchtests/bench-memset-large.c
Normal file
134
benchtests/bench-memset-large.c
Normal file
@ -0,0 +1,134 @@
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/* Measure memset functions with large data sizes.
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Copyright (C) 2016 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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#ifndef WIDE
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# define TEST_NAME "memset"
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#else
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# define TEST_NAME "wmemset"
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#endif /* WIDE */
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#define START_SIZE (128 * 1024)
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#define MIN_PAGE_SIZE (getpagesize () + 64 * 1024 * 1024)
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#define TIMEOUT (20 * 60)
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#include "bench-string.h"
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#ifndef WIDE
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# define MEMSET memset
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# define CHAR char
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# define SIMPLE_MEMSET simple_memset
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# define MEMCMP memcmp
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#else
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# include <wchar.h>
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# define MEMSET wmemset
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# define CHAR wchar_t
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# define SIMPLE_MEMSET simple_wmemset
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# define MEMCMP wmemcmp
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#endif /* WIDE */
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#include <assert.h>
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IMPL (MEMSET, 1)
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typedef CHAR *(*proto_t) (CHAR *, int, size_t);
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CHAR *
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inhibit_loop_to_libcall
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SIMPLE_MEMSET (CHAR *s, int c, size_t n)
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{
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CHAR *r = s, *end = s + n;
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while (r < end)
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*r++ = c;
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return s;
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}
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static void
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do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
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{
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size_t i, iters = 16;
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timing_t start, stop, cur;
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CHAR *tstbuf = malloc (n * sizeof (*s));
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assert (tstbuf != NULL);
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/* Must clear the destination buffer updated by the previous run. */
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for (i = 0; i < n; i++)
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s[i] = 0;
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CHAR *res = CALL (impl, s, c, n);
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if (res != s
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|| SIMPLE_MEMSET (tstbuf, c, n) != tstbuf
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|| MEMCMP (s, tstbuf, n) != 0)
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{
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error (0, 0, "Wrong result in function %s", impl->name);
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ret = 1;
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free (tstbuf);
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return;
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}
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TIMING_NOW (start);
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for (i = 0; i < iters; ++i)
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{
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CALL (impl, s, c, n);
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}
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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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free (tstbuf);
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}
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static void
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do_test (size_t align, int c, size_t len)
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{
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align &= 63;
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if ((align + len) * sizeof (CHAR) > page_size)
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return;
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printf ("Length %4zd, alignment %2zd, c %2d:", len, align, c);
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FOR_EACH_IMPL (impl, 0)
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do_one_test (impl, (CHAR *) (buf1) + align, c, len);
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putchar ('\n');
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}
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int
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test_main (void)
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{
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size_t i;
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int c;
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test_init ();
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printf ("%24s", "");
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FOR_EACH_IMPL (impl, 0)
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printf ("\t%s", impl->name);
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putchar ('\n');
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c = 65;
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for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
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{
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do_test (0, c, i);
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do_test (3, c, i);
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}
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return ret;
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}
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#include "../test-skeleton.c"
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@ -56,7 +56,9 @@ extern impl_t __start_impls[], __stop_impls[];
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# define TEST_FUNCTION test_main ()
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# define TIMEOUT (4 * 60)
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# ifndef TIMEOUT
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# define TIMEOUT (4 * 60)
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# endif
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# define OPT_ITERATIONS 10000
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# define OPT_RANDOM 10001
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# define OPT_SEED 10002
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