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", "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 < 32; ++i)
{
do_test (&json_ctx, CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 0);
do_test (&json_ctx, CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 1);
do_test (&json_ctx, CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, -1);
}
for (i = 1; i < 10 + CHARBYTESLOG; ++i)
{
do_test (&json_ctx, 0, 0, 2 << i, MIDCHAR, 0);
do_test (&json_ctx, 0, 0, 2 << i, LARGECHAR, 0);
do_test (&json_ctx, 0, 0, 2 << i, MIDCHAR, 1);
do_test (&json_ctx, 0, 0, 2 << i, LARGECHAR, 1);
do_test (&json_ctx, 0, 0, 2 << i, MIDCHAR, -1);
do_test (&json_ctx, 0, 0, 2 << i, LARGECHAR, -1);
do_test (&json_ctx, 0, CHARBYTES * i, 2 << i, MIDCHAR, 1);
do_test (&json_ctx, CHARBYTES * i, CHARBYTES * (i + 1), 2 << i, LARGECHAR, 1);
}
for (i = 1; i < 8; ++i)
{
do_test (&json_ctx, CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 0);
do_test (&json_ctx, 2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 0);
do_test (&json_ctx, CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 1);
do_test (&json_ctx, 2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 1);
do_test (&json_ctx, CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, -1);
do_test (&json_ctx, 2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, -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;
}
static void
do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t len)
{
size_t i, j;
char *s1, *s2;
align1 &= 63;
if (align1 + len >= page_size)
return;
align2 &= 63;
if (align2 + len >= page_size)
return;
s1 = (char *) (buf2 + align1);
s2 = (char *) (buf2 + align2);
for (i = 0, j = 1; i < len; i++, j += 23)
s1[i] = j;
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)
do_one_test (json_ctx, impl, s2, s1, len);
json_array_end (json_ctx);
json_element_object_end (json_ctx);
}
int
test_main (void)
{
json_ctx_t json_ctx;
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, "memmove");
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");
/* Non-overlapping buffers. */
for (size_t i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
{
do_test (&json_ctx, i, false);
do_test (&json_ctx, i + 1, false);
}
/* Overlapping buffers. */
for (size_t i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
{
do_test (&json_ctx, i, true);
do_test (&json_ctx, i + 1, true);
}
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_document_end (&json_ctx);
return ret;
}
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, "memcpy");
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)
{
/* Test length alignments from 0-16 bytes. */
for (int j = 0; j < 8; j++)
{
do_test (&json_ctx, i + j);
do_test (&json_ctx, i + 16 - j);
}
}
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_document_end (&json_ctx);
return ret;
}
static void
do_test (json_ctx_t *json_ctx, size_t len)
{
json_element_object_begin (json_ctx);
json_attr_uint (json_ctx, "length", (double) len);
json_array_begin (json_ctx, "timings");
FOR_EACH_IMPL (impl, 0)
do_one_test (json_ctx, impl, (char *) buf2, (char *) buf1, len);
json_array_end (json_ctx);
json_element_object_end (json_ctx);
}
static void
do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t len, int
max_char, int exp_result)
{
size_t i;
CHAR *s1, *s2;
if (len == 0)
return;
align1 &= 63;
if (align1 + (len + 1) * CHARBYTES >= page_size)
return;
align2 &= 63;
if (align2 + (len + 1) * CHARBYTES >= page_size)
return;
/* Put them close to the end of page. */
i = align1 + CHARBYTES * (len + 2);
s1 = (CHAR *) (buf1 + ((page_size - i) / 16 * 16) + align1);
i = align2 + CHARBYTES * (len + 2);
s2 = (CHAR *) (buf2 + ((page_size - i) / 16 * 16) + align2);
for (i = 0; i < len; i++)
s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % max_char;
s1[len] = s2[len] = 0;
s1[len + 1] = 23;
s2[len + 1] = 24 + exp_result;
s2[len - 1] -= exp_result;
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)
do_one_test (json_ctx, impl, s1, s2, exp_result);
json_array_end (json_ctx);
json_element_object_end (json_ctx);
}
int
main (int argc, char **argv)
{
unsigned long i, k;
struct timespec runtime;
timing_t start, end;
bool detailed = false;
json_ctx_t json_ctx;
if (argc == 2 && !strcmp (argv[1], "-d"))
detailed = true;
bench_start ();
memset (&runtime, 0, sizeof (runtime));
unsigned long iters, res;
#ifdef BENCH_INIT
BENCH_INIT ();
#endif
TIMING_INIT (res);
iters = 1000 * res;
json_init (&json_ctx, 2, stdout);
/* Begin function. */
json_attr_object_begin (&json_ctx, FUNCNAME);
for (int v = 0; v < NUM_VARIANTS; v++)
{
/* Run for approximately DURATION seconds. */
clock_gettime (CLOCK_MONOTONIC_RAW, &runtime);
runtime.tv_sec += DURATION;
double d_total_i = 0;
timing_t total = 0, max = 0, min = 0x7fffffffffffffff;
int64_t c = 0;
while (1)
{
for (i = 0; i < NUM_SAMPLES (v); i++)
{
uint64_t cur;
TIMING_NOW (start);
for (k = 0; k < iters; k++)
BENCH_FUNC (v, i);
TIMING_NOW (end);
TIMING_DIFF (cur, start, end);
if (cur > max)
max = cur;
if (cur < min)
min = cur;
TIMING_ACCUM (total, cur);
/* Accumulate timings for the value. In the end we will divide
by the total iterations. */
RESULT_ACCUM (cur, v, i, c * iters, (c + 1) * iters);
d_total_i += iters;
}
c++;
struct timespec curtime;
memset (&curtime, 0, sizeof (curtime));
clock_gettime (CLOCK_MONOTONIC_RAW, &curtime);
if (TIMESPEC_AFTER (curtime, runtime))
goto done;
}
double d_total_s;
double d_iters;
done:
d_total_s = total;
d_iters = iters;
/* Begin variant. */
json_attr_object_begin (&json_ctx, VARIANT (v));
json_attr_double (&json_ctx, "duration", d_total_s);
json_attr_double (&json_ctx, "iterations", d_total_i);
json_attr_double (&json_ctx, "max", max / d_iters);
json_attr_double (&json_ctx, "min", min / d_iters);
json_attr_double (&json_ctx, "mean", d_total_s / d_total_i);
if (detailed)
{
json_array_begin (&json_ctx, "timings");
for (int i = 0; i < NUM_SAMPLES (v); i++)
json_element_double (&json_ctx, RESULT (v, i));
json_array_end (&json_ctx);
}
/* End variant. */
json_attr_object_end (&json_ctx);
}
/* End function. */
json_attr_object_end (&json_ctx);
return 0;
}
static 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, "memmove");
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 = 0; i < 14; ++i)
{
do_test (&json_ctx, 0, 32, 1 << i);
do_test (&json_ctx, 32, 0, 1 << i);
do_test (&json_ctx, 0, i, 1 << i);
do_test (&json_ctx, i, 0, 1 << i);
}
for (i = 0; i < 32; ++i)
{
do_test (&json_ctx, 0, 32, i);
do_test (&json_ctx, 32, 0, i);
do_test (&json_ctx, 0, i, i);
do_test (&json_ctx, i, 0, i);
}
for (i = 3; i < 32; ++i)
{
if ((i & (i - 1)) == 0)
continue;
do_test (&json_ctx, 0, 32, 16 * i);
do_test (&json_ctx, 32, 0, 16 * i);
do_test (&json_ctx, 0, i, 16 * i);
do_test (&json_ctx, i, 0, 16 * i);
}
for (i = 32; i < 64; ++i)
{
do_test (&json_ctx, 0, 0, 32 * i);
do_test (&json_ctx, i, 0, 32 * i);
do_test (&json_ctx, 0, i, 32 * i);
do_test (&json_ctx, i, i, 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;
}