Cached file read performance
attilio at freebsd.org
Sat Dec 23 09:07:33 PST 2006
2006/12/23, David Xu <davidxu at freebsd.org>:
> On Saturday 23 December 2006 03:29, Alexander Leidinger wrote:
> > I want to point out http://www.freebsd.org/projects/ideas/#p-memcpy
> > here. Just in case someone wants to play around a little bit.
> > Bye,
> > Alexander.
> I have read the code, if a buffer is not aligned at 16 bytes boundary,
> it will not use FPU to copy data, but user buffer is not always 16 bytes
If the buffer is not aligned, speedup improvement is so small to be near at 0%.
Peace can only be achieved by understanding - A. Einstein
More information about the freebsd-performance