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benchtests: Make bench-memcmp print json 

The benchamrk result can now be studied using the compare_strings.py
script.

	* benchtests/bench-memcmp.c: Print json instead of plain text.
This commit is contained in:
Siddhesh Poyarekar 2018-02-02 09:56:47 +05:30
parent 3dfcbfa1a4
commit 96e6a7167e
2 changed files with 53 additions and 27 deletions
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2
ChangeLog
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@ -1,5 +1,7 @@
2018-02-02 Siddhesh Poyarekar <siddhesh@sourceware.org>
* benchtests/bench-memcmp.c: Print json instead of plain text.
* benchtests/bench-memcmp.c (do_test): Call realloc_buf for
every test run.

78
benchtests/bench-memcmp.c
View File

@ -69,14 +69,16 @@ simple_memcmp (const char *s1, const char *s2, size_t n)
}
#endif
# include "json-lib.h"
typedef int (*proto_t) (const CHAR *, const CHAR *, size_t);
IMPL (SIMPLE_MEMCMP, 0)
IMPL (MEMCMP, 1)
static void
do_one_test (impl_t *impl, const CHAR *s1, const CHAR *s2, size_t len,
int exp_result)
do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s1,
const CHAR *s2, size_t len, int exp_result)
{
size_t i, iters = INNER_LOOP_ITERS;
timing_t start, stop, cur;
@ -90,11 +92,12 @@ do_one_test (impl_t *impl, const CHAR *s1, const CHAR *s2, size_t len,
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 align1, size_t align2, size_t len, int exp_result)
do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t len,
int exp_result)
{
size_t i;
CHAR *s1, *s2;
@ -110,7 +113,11 @@ do_test (size_t align1, size_t align2, size_t len, int exp_result)
if (align2 + (len + 1) * CHARBYTES >= page_size)
return;
printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
json_element_object_begin (json_ctx);
json_attr_uint (json_ctx, "length", (double) len);
json_attr_uint (json_ctx, "align1", (double) align1);
json_attr_uint (json_ctx, "align2", (double) align2);
json_array_begin (json_ctx, "timings");
FOR_EACH_IMPL (impl, 0)
{
@ -124,57 +131,74 @@ do_test (size_t align1, size_t align2, size_t len, int exp_result)
s2[len] = align2;
s2[len - 1] -= exp_result;
do_one_test (impl, s1, s2, len, exp_result);
do_one_test (json_ctx, impl, s1, s2, len, exp_result);
realloc_bufs ();
}
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;
test_init ();
printf ("%23s", "");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
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", "default");
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 = 1; i < 16; ++i)
{
do_test (i * CHARBYTES, i * CHARBYTES, i, 0);
do_test (i * CHARBYTES, i * CHARBYTES, i, 1);
do_test (i * CHARBYTES, i * CHARBYTES, i, -1);
do_test (&json_ctx, i * CHARBYTES, i * CHARBYTES, i, 0);
do_test (&json_ctx, i * CHARBYTES, i * CHARBYTES, i, 1);
do_test (&json_ctx, i * CHARBYTES, i * CHARBYTES, i, -1);
}
for (i = 0; i < 16; ++i)
{
do_test (0, 0, i, 0);
do_test (0, 0, i, 1);
do_test (0, 0, i, -1);
do_test (&json_ctx, 0, 0, i, 0);
do_test (&json_ctx, 0, 0, i, 1);
do_test (&json_ctx, 0, 0, i, -1);
}
for (i = 1; i < 10; ++i)
{
do_test (0, 0, 2 << i, 0);
do_test (0, 0, 2 << i, 1);
do_test (0, 0, 2 << i, -1);
do_test (0, 0, 16 << i, 0);
do_test ((8 - i) * CHARBYTES, (2 * i) * CHARBYTES, 16 << i, 0);
do_test (0, 0, 16 << i, 1);
do_test (0, 0, 16 << i, -1);
do_test (&json_ctx, 0, 0, 2 << i, 0);
do_test (&json_ctx, 0, 0, 2 << i, 1);
do_test (&json_ctx, 0, 0, 2 << i, -1);
do_test (&json_ctx, 0, 0, 16 << i, 0);
do_test (&json_ctx, (8 - i) * CHARBYTES, (2 * i) * CHARBYTES, 16 << i, 0);
do_test (&json_ctx, 0, 0, 16 << i, 1);
do_test (&json_ctx, 0, 0, 16 << i, -1);
}
for (i = 1; i < 8; ++i)
{
do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 0);
do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 1);
do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, -1);
do_test (&json_ctx, i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 0);
do_test (&json_ctx, i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 1);
do_test (&json_ctx, i * CHARBYTES, 2 * (i * CHARBYTES), 8 << 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;
}