mirror/glibc
2
0
Fork 0
mirror of git://sourceware.org/git/glibc.git synced 2024-11-27 03:41:23 +08:00
Code Issues Packages Projects Releases Wiki Activity

Benchtest: Add additional benchmarks for strlen and strnlen

Browse Source 
Current benchmarks are missing many cases in the mid-length range
which is often the hottest size range.
This commit is contained in:
Noah Goldstein 2022-09-28 12:20:12 -07:00
parent b0969fa53a
commit 5eb21c62ce
2 changed files with 81 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
benchtests/bench-strlen.c
View File

@ -128,10 +128,10 @@ test_main (void)
/* Checking with only 4 * N alignments for wcslen, other alignments are wrong for wchar_t type arrays*/
for (i = 1; i < 8; ++i)
{
do_test (&json_ctx, sizeof (CHAR) * i, i);
do_test (&json_ctx, 0, i);
}
{
do_test (&json_ctx, sizeof (CHAR) * i, i);
do_test (&json_ctx, 0, i);
}
for (i = 2; i <= 12; ++i)
{
@ -141,6 +141,31 @@ test_main (void)
do_test (&json_ctx, sizeof (CHAR) * i, (size_t)((1 << i) / 1.5));
}
for (i = 0; i < 512; i += 32)
{
do_test (&json_ctx, 0, i / sizeof (CHAR));
}
for (i = 512; i < 1024; i += 64)
{
do_test (&json_ctx, 0, i / sizeof (CHAR));
}
for (i = 1024; i < 2048; i += 128)
{
do_test (&json_ctx, 0, i / sizeof (CHAR));
}
for (i = 2048; i < 4096; i += 256)
{
do_test (&json_ctx, 0, i / sizeof (CHAR));
}
for (i = 4096; i < 8192; i += 512)
{
do_test (&json_ctx, 0, i / sizeof (CHAR));
}
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);

55
benchtests/bench-strnlen.c
View File

@ -63,6 +63,11 @@ do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s, size_t maxlen,
ret = 1;
return;
}
/* Warmup. */
for (i = 0; i < iters / 16; ++i)
{
CALL (impl, s, maxlen);
}
TIMING_NOW (start);
for (i = 0; i < iters; ++i)
@ -110,7 +115,7 @@ do_test (json_ctx_t *json_ctx, size_t align, size_t len, size_t maxlen,
int
test_main (void)
{
size_t i;
size_t i, j;
json_ctx_t json_ctx;
test_init ();
@ -131,6 +136,19 @@ test_main (void)
json_array_begin (&json_ctx, "results");
for (i = 0; i <= 1; ++i)
{
do_test (&json_ctx, i, 1, 128, MIDDLE_CHAR);
do_test (&json_ctx, i, 128, 1, MIDDLE_CHAR);
do_test (&json_ctx, i, 1, 2, MIDDLE_CHAR);
do_test (&json_ctx, i, 2, 1, MIDDLE_CHAR);
do_test (&json_ctx, 32 + i, 1, 128, MIDDLE_CHAR);
do_test (&json_ctx, 32 + i, 128, 1, MIDDLE_CHAR);
do_test (&json_ctx, 32 + i, 1, 2, MIDDLE_CHAR);
do_test (&json_ctx, 32 + i, 2, 1, MIDDLE_CHAR);
}
for (i = 1; i < 8; ++i)
{
do_test (&json_ctx, 0, i, i - 1, MIDDLE_CHAR);
@ -149,18 +167,49 @@ test_main (void)
{
do_test (&json_ctx, 0, 1 << i, 5000, MIDDLE_CHAR);
do_test (&json_ctx, 1, 1 << i, 5000, MIDDLE_CHAR);
do_test (&json_ctx, 0, 5000, 1 << i, MIDDLE_CHAR);
do_test (&json_ctx, 1, 5000, 1 << i, MIDDLE_CHAR);
}
for (i = 1; i < 8; ++i)
do_test (&json_ctx, 0, i, 5000, BIG_CHAR);
{
do_test (&json_ctx, 0, i, 5000, BIG_CHAR);
do_test (&json_ctx, 0, 5000, i, BIG_CHAR);
}
for (i = 1; i < 8; ++i)
do_test (&json_ctx, i, i, 5000, BIG_CHAR);
{
do_test (&json_ctx, i, i, 5000, BIG_CHAR);
do_test (&json_ctx, i, 5000, i, BIG_CHAR);
}
for (i = 2; i <= 10; ++i)
{
do_test (&json_ctx, 0, 1 << i, 5000, BIG_CHAR);
do_test (&json_ctx, 1, 1 << i, 5000, BIG_CHAR);
do_test (&json_ctx, 0, 5000, 1 << i, BIG_CHAR);
do_test (&json_ctx, 1, 5000, 1 << i, BIG_CHAR);
}
for (i = (16 / sizeof (CHAR)); i <= (8192 / sizeof (CHAR)); i += i)
{
for (j = 0; j <= (704 / sizeof (CHAR)); j += (32 / sizeof (CHAR)))
{
do_test (&json_ctx, 0, 1 << i, (i + j), BIG_CHAR);
do_test (&json_ctx, 0, i + j, i, BIG_CHAR);
do_test (&json_ctx, 64, 1 << i, (i + j), BIG_CHAR);
do_test (&json_ctx, 64, i + j, i, BIG_CHAR);
if (j < i)
{
do_test (&json_ctx, 0, 1 << i, i - j, BIG_CHAR);
do_test (&json_ctx, 0, i - j, i, BIG_CHAR);
do_test (&json_ctx, 64, 1 << i, i - j, BIG_CHAR);
do_test (&json_ctx, 64, i - j, i, BIG_CHAR);
}
}
}
json_array_end (&json_ctx);