when needle is short, Sunday algorithm is slower than glibc memchr()

ksmiley · Sep 18, 2016 · 1573567 · 1573567
1 parent 925c251
commit 1573567
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Zend/zend_operators.h b/Zend/zend_operators.h
@@ -167,7 +167,7 @@ zend_memnstr(const char *haystack, const char *needle, size_t needle_len, const
 		return NULL;
 	}
 
-	if (EXPECTED(off_s < 1024 || needle_len < 3)) {
+	if (EXPECTED(off_s < 1024 || needle_len < 9)) {	/* glibc memchr is faster when needle is too short */
 		end -= needle_len;
 
 		while (p <= end) {