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Diffstat (limited to 'benchtests/bench-memset-walk.c')
-rw-r--r-- | benchtests/bench-memset-walk.c | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/benchtests/bench-memset-walk.c b/benchtests/bench-memset-walk.c deleted file mode 100644 index 7be904a..0000000 --- a/benchtests/bench-memset-walk.c +++ /dev/null @@ -1,122 +0,0 @@ -/* Measure memset function throughput with large data sizes. - Copyright (C) 2017-2024 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#define TEST_MAIN -#define TEST_NAME "memset" -#define START_SIZE 128 -#define MIN_PAGE_SIZE (getpagesize () + 32 * 1024 * 1024) -#define TIMEOUT (20 * 60) -#include "bench-string.h" - -#include "json-lib.h" - -void *generic_memset (void *, int, size_t); -typedef void *(*proto_t) (void *, int, size_t); - -IMPL (MEMSET, 1) -IMPL (generic_memset, 0) - -static void -do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *s, CHAR *s_end, - int c __attribute ((unused)), size_t n) -{ - size_t i, iters = MIN_PAGE_SIZE / n; - timing_t start, stop, cur; - - TIMING_NOW (start); - for (i = 0; i < iters && s <= s_end; s_end -= n, i++) - CALL (impl, s, c, n); - TIMING_NOW (stop); - - TIMING_DIFF (cur, start, stop); - - /* Get time taken per function call. */ - json_element_double (json_ctx, (double) cur / i); -} - -static void -do_test (json_ctx_t *json_ctx, int c, size_t len) -{ - json_element_object_begin (json_ctx); - json_attr_uint (json_ctx, "length", len); - json_attr_uint (json_ctx, "char", c); - json_array_begin (json_ctx, "timings"); - - FOR_EACH_IMPL (impl, 0) - { - do_one_test (json_ctx, impl, (CHAR *) buf1, - (CHAR *) buf1 + MIN_PAGE_SIZE - len, c, len); - alloc_bufs (); - } - - json_array_end (json_ctx); - json_element_object_end (json_ctx); -} - -int -test_main (void) -{ - json_ctx_t json_ctx; - size_t i; - - test_init (); - - json_init (&json_ctx, 0, stdout); - - json_document_begin (&json_ctx); - json_attr_string (&json_ctx, "timing_type", TIMING_TYPE); - - json_attr_object_begin (&json_ctx, "functions"); - json_attr_object_begin (&json_ctx, TEST_NAME); - json_attr_string (&json_ctx, "bench-variant", "walk"); - - json_array_begin (&json_ctx, "ifuncs"); - FOR_EACH_IMPL (impl, 0) - json_element_string (&json_ctx, impl->name); - json_array_end (&json_ctx); - - json_array_begin (&json_ctx, "results"); - for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1) - { - do_test (&json_ctx, 65, i); - do_test (&json_ctx, 65, i + 1); - } - - for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1) - { - do_test (&json_ctx, 0, i); - do_test (&json_ctx, 0, i + 1); - } - - json_array_end (&json_ctx); - json_attr_object_end (&json_ctx); - json_attr_object_end (&json_ctx); - json_document_end (&json_ctx); - - return ret; -} - -#include <support/test-driver.c> - -#define libc_hidden_builtin_def(X) -#define libc_hidden_def(X) -#define libc_hidden_weak(X) -#define weak_alias(X,Y) -#undef MEMSET -#define MEMSET generic_memset -#include <string/memset.c> |