From: email@example.com (Larry McVoy)
Date: Thu, 16 May 1996 09:03:36 -0700
I think your 4.8MB/sec number is pretty studly. That means you are
checksumming 9MB/sec as well as the protocol stack on a system that
bcopies at ~20MB/sec. You're already better than 2x the SunOS code.
Call it a day, you won.
I did not win, this is unacceptable. I am completely convinced based
upon the edge I have over Solaris for context switching and general
process/trap operations I should be able to match it even with
everything going through real networking.
Linux + full networking overhead == Solaris memcpy/cow-page overhead
I cannot accept this piss poor performance I'm getting, it must be
(Yes, I'm rediculious, Larry will tell you others how I feel that if
I am presented with a "next generation" cpu and I cannot get from
trap entry to kernel c-code in 12 completely pipelined non-stalling
instructions then some hardware engineer has completely wasted his
precious time ;-)
David S. Miller