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benchtests: Make memset benchmarks print json

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Make the memset benchmarks (bench-memset and bench-memset-large) print
their output in JSON so that they can be evaluated using the
compare_strings.py script.

	* benchtests/bench-memset-large.c: Print output in JSON
	format.
	* benchtests/bench-memset.c: Likewise.
This commit is contained in:
Siddhesh Poyarekar 2017-09-14 22:37:33 +05:30
parent 799c8d6905
commit 29c933fb35
3 changed files with 86 additions and 31 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
2017-09-14 Siddhesh Poyarekar <siddhesh@sourceware.org>
* benchtests/bench-memset-large.c: Print output in JSON
format.
* benchtests/bench-memset.c: Likewise.
2017-09-14 Mike FABIAN <mfabian@redhat.com>
[BZ #21084]

46
benchtests/bench-memset-large.c
View File

@ -41,6 +41,7 @@
#endif /* WIDE */
#include <assert.h>
#include "json-lib.h"
IMPL (MEMSET, 1)
@ -57,7 +58,8 @@ SIMPLE_MEMSET (CHAR *s, int c, size_t n)
}
static void
do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *s,
int c __attribute ((unused)), size_t n)
{
size_t i, iters = 16;
timing_t start, stop, cur;
@ -71,44 +73,66 @@ do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
TIMING_DIFF (cur, start, stop);
TIMING_PRINT_MEAN ((double) cur, (double) iters);
json_element_double (json_ctx, (double) cur / (double) iters);
}
static void
do_test (size_t align, int c, size_t len)
do_test (json_ctx_t *json_ctx, size_t align, int c, size_t len)
{
align &= 63;
if ((align + len) * sizeof (CHAR) > page_size)
return;
printf ("Length %4zd, alignment %2zd, c %2d:", len, align, c);
json_element_object_begin (json_ctx);
json_attr_uint (json_ctx, "length", len);
json_attr_uint (json_ctx, "alignment", align);
json_attr_int (json_ctx, "char", c);
json_array_begin (json_ctx, "timings");
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, (CHAR *) (buf1) + align, c, len);
do_one_test (json_ctx, impl, (CHAR *) (buf1) + align, c, len);
putchar ('\n');
json_array_end (json_ctx);
json_element_object_end (json_ctx);
}
int
test_main (void)
{
json_ctx_t json_ctx;
size_t i;
int c;
test_init ();
printf ("%24s", "");
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", "large");
json_array_begin (&json_ctx, "ifuncs");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
json_element_string (&json_ctx, impl->name);
json_array_end (&json_ctx);
json_array_begin (&json_ctx, "results");
c = 65;
for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
{
do_test (0, c, i);
do_test (3, c, i);
do_test (&json_ctx, 0, c, i);
do_test (&json_ctx, 3, c, i);
}
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_document_end (&json_ctx);
return ret;
}

65
benchtests/bench-memset.c
View File

@ -42,6 +42,8 @@
# define MEMCMP wmemcmp
#endif /* WIDE */
#include "json-lib.h"
CHAR *SIMPLE_MEMSET (CHAR *, int, size_t);
#ifdef TEST_BZERO
@ -94,7 +96,8 @@ SIMPLE_MEMSET (CHAR *s, int c, size_t n)
}
static void
do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *s,
int c __attribute ((unused)), size_t n)
{
size_t i, iters = INNER_LOOP_ITERS;
timing_t start, stop, cur;
@ -112,65 +115,87 @@ do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
TIMING_DIFF (cur, start, stop);
TIMING_PRINT_MEAN ((double) cur, (double) iters);
json_element_double (json_ctx, (double) cur / (double) iters);
}
static void
do_test (size_t align, int c, size_t len)
do_test (json_ctx_t *json_ctx, size_t align, int c, size_t len)
{
align &= 63;
if ((align + len) * sizeof (CHAR) > page_size)
return;
printf ("Length %4zd, alignment %2zd, c %2d:", len, align, c);
json_element_object_begin (json_ctx);
json_attr_uint (json_ctx, "length", len);
json_attr_uint (json_ctx, "alignment", align);
json_attr_int (json_ctx, "char", c);
json_array_begin (json_ctx, "timings");
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, (CHAR *) (buf1) + align, c, len);
do_one_test (json_ctx, impl, (CHAR *) (buf1) + align, c, len);
putchar ('\n');
json_array_end (json_ctx);
json_element_object_end (json_ctx);
}
int
test_main (void)
{
json_ctx_t json_ctx;
size_t i;
int c = 0;
test_init ();
printf ("%24s", "");
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", "");
json_array_begin (&json_ctx, "ifuncs");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
json_element_string (&json_ctx, impl->name);
json_array_end (&json_ctx);
json_array_begin (&json_ctx, "results");
#ifndef TEST_BZERO
for (c = -65; c <= 130; c += 65)
#endif
{
for (i = 0; i < 18; ++i)
do_test (0, c, 1 << i);
do_test (&json_ctx, 0, c, 1 << i);
for (i = 1; i < 32; ++i)
{
do_test (i, c, i);
do_test (&json_ctx, i, c, i);
if (i & (i - 1))
do_test (0, c, i);
do_test (&json_ctx, 0, c, i);
}
for (i = 32; i < 512; i+=32)
{
do_test (0, c, i);
do_test (i, c, i);
do_test (&json_ctx, 0, c, i);
do_test (&json_ctx, i, c, i);
}
do_test (1, c, 14);
do_test (3, c, 1024);
do_test (4, c, 64);
do_test (2, c, 25);
do_test (&json_ctx, 1, c, 14);
do_test (&json_ctx, 3, c, 1024);
do_test (&json_ctx, 4, c, 64);
do_test (&json_ctx, 2, c, 25);
}
for (i = 33; i <= 256; i += 4)
{
do_test (0, c, 32 * i);
do_test (i, c, 32 * i);
do_test (&json_ctx, 0, c, 32 * i);
do_test (&json_ctx, i, c, 32 * i);
}
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_document_end (&json_ctx);
return ret;
}