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	cem
	May 6 2020, 12:53 AM

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	```c
	int main(int argc, char **argv)
	{
	static const size_t len = 2ull10241024*1024;
	char *src = malloc(len);
	char dst[10];
	int loops;

	memset(src, 'A', len - 1);
	src[len - 1] = 0;

	loops = atoi(argv[1]);
	for (int i = 0; i < loops; i++) {
	strlcpy(dst, src, sizeof(dst));
	}
	return (dst[0]+dst[1]);
	}
	```

	(Substituting strlcpy implementation. I verified the optimizer was not cheating and inlining the loop.)

	Invoked:

	```
	for i in $(jot 5) ; do /usr/bin/time ./a.exe 20 ; done
	```

	```
	x dataa
	+ datab
	+----------------------------------------------------------------------------------------+
	\|+ \|
	\|+ x \|
	\|+ x \|
	\|+ x \|
	\|+ x x\|
	\|A MA\| \|
	+----------------------------------------------------------------------------------------+
	N Min Max Median Avg Stddev
	x 5 16.93 17.5 16.99 17.084 0.23479779
	+ 5 0.81 0.85 0.85 0.834 0.021908902
	Difference at 95.0% confidence
	-16.25 +/- 0.243193
	-95.1182% +/- 0.149259%
	(Student's t, pooled s = 0.166748)
	```