On (Fri) 28 Aug 2015 [16:54:11], Liang Li wrote:
> The buffer_find_nonzero_offset() will be called to check the zero page
> during live migration, it's a hot function. buffer_find_nonzero_offset()
> has already been optimized with SSE2 instructions, for platform that
> supports AVX2, we can optimize this function with AVX2 instructions and
> achieve about 25% performance gain.
This should be a good improvement. I recall Dave and I had a chat
about this in the past too.
I've not yet reviewed the patchset, but I doubt anyone will have
objections. I'll review this shortly.
Thanks,
Amit
