Re: [PATCH] perf, tools, bench: Fix memcpy benchmark for large sizes

[Andi Kleen <ak@linux.jf.intel.com>]

> > @@ -117,6 +117,8 @@ static void alloc_mem(void **dst, void **src, size_t length)
> >  	*src = zalloc(length);
> >  	if (!src)
> >  		die("memory allocation failed - maybe length is too large?\n");
> > +	/* Make sure to always replace the zero pages even if MMAP_THRESH is crossed */
> > +	memset(src, 0, length);
> 
> It should be memset(*src, 0, length) instead.

Thanks for catching. I wonder why it fixed the problem for me.

> There's fix for wrong memory allocation fail check in v3.11-rc1.

Doubt it matters.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only