From 3e55575cde5905e6550bb33161dfda657283b823 Mon Sep 17 00:00:00 2001
From: Anton Youdkevitch <anton.youdkevitch@bell-sw.com>
Date: Wed, 26 Jun 2019 14:33:50 +0000
Subject: [PATCH] Bump up the runtime for "short" benchmarks
The runtime of the benchmarks that ran less than 100ms
on Aarch64 was increased. The new INNER_LOOP_ITERS_LARGE
constant for such benchmaks was introduced.
The goal for the deviation being under 5% between runs
is achieved.
---
benchtests/bench-memccpy.c | 2 +-
benchtests/bench-memchr.c | 2 +-
benchtests/bench-rawmemchr.c | 2 +-
benchtests/bench-strcat.c | 2 +-
benchtests/bench-strchr.c | 2 +-
benchtests/bench-string.h | 1 +
benchtests/bench-strlen.c | 2 +-
benchtests/bench-strncpy.c | 2 +-
benchtests/bench-strnlen.c | 2 +-
9 files changed, 9 insertions(+), 8 deletions(-)
@@ -41,7 +41,7 @@ static void
do_one_test (impl_t *impl, void *dst, const void *src, int c, size_t len,
size_t n)
{
- size_t i, iters = INNER_LOOP_ITERS;
+ size_t i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
TIMING_NOW (start);
@@ -56,7 +56,7 @@ SIMPLE_MEMCHR (const CHAR *s, int c, size_t n)
static void
do_one_test (impl_t *impl, const CHAR *s, int c, size_t n)
{
- size_t i, iters = INNER_LOOP_ITERS;
+ size_t i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
TIMING_NOW (start);
@@ -39,7 +39,7 @@ IMPL (generic_rawmemchr, 0)
static void
do_one_test (impl_t *impl, const char *s, int c, char *exp_res)
{
- size_t i, iters = INNER_LOOP_ITERS;
+ size_t i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
char *res = CALL (impl, s, c);
if (res != exp_res)
@@ -51,7 +51,7 @@ IMPL (generic_strcat, 0)
static void
do_one_test (impl_t *impl, CHAR *dst, const CHAR *src)
{
- size_t k = STRLEN (dst), i, iters = INNER_LOOP_ITERS;
+ size_t k = STRLEN (dst), i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
if (CALL (impl, dst, src) != dst)
@@ -76,7 +76,7 @@ IMPL (STRCHR, 1)
static void
do_one_test (impl_t *impl, const CHAR *s, int c, const CHAR *exp_res)
{
- size_t i, iters = INNER_LOOP_ITERS;
+ size_t i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
TIMING_NOW (start);
@@ -125,6 +125,7 @@ extern impl_t __start_impls[], __stop_impls[];
# define OPT_SEED 10002
# define INNER_LOOP_ITERS 8192
+# define INNER_LOOP_ITERS_LARGE 131072
# define INNER_LOOP_ITERS_MEDIUM 1024
# define INNER_LOOP_ITERS_SMALL 32
@@ -48,7 +48,7 @@ IMPL (STRLEN, 1)
static void
do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s, size_t exp_len)
{
- size_t len = CALL (impl, s), i, iters = INNER_LOOP_ITERS;
+ size_t len = CALL (impl, s), i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
if (len != exp_len)
@@ -54,7 +54,7 @@ typedef CHAR *(*proto_t) (CHAR *, const CHAR *, size_t);
static void
do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, size_t len, size_t n)
{
- size_t i, iters = INNER_LOOP_ITERS;
+ size_t i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
if (CALL (impl, dst, src, n) != STRNCPY_RESULT (dst, len, n))
@@ -51,7 +51,7 @@ IMPL (generic_strnlen, 0)
static void
do_one_test (impl_t *impl, const CHAR *s, size_t maxlen, size_t exp_len)
{
- size_t len = CALL (impl, s, maxlen), i, iters = INNER_LOOP_ITERS;
+ size_t len = CALL (impl, s, maxlen), i, iters = INNER_LOOP_ITERS_LARGE;
timing_t start, stop, cur;
if (len != exp_len)
--
2.7.4