Re: FPU memcpy Penalty

Alan Cox (alan@cymru.net)
Thu, 13 Jun 1996 10:29:22 +0100 (BST)


> [With regards to slow performance on "x11perf -putimage500" after applying
> the Pentium memcpy patch:]

Don't rely on x11perf to benchmark stuff. As someone pointed out to me with
older libcs at least its doing libc writev emulation so doing copy lots,
write a bit, EWOULDBLOCK , copy most of it again, write a bit...

Alan