Date: Wed, 26 Mar 2003 22:58:21 -0600 (CST) From: Mike Silbersack <silby@silby.com> To: Nate Lawson <nate@root.org> Cc: cvs-all@FreeBSD.org Subject: Re: Checksum/copy (was: Re: cvs commit: src/sys/netinet ip_output.c) Message-ID: <20030326225530.G2075@odysseus.silby.com> In-Reply-To: <Pine.BSF.4.21.0303260956250.27748-100000@root.org> References: <Pine.BSF.4.21.0303260956250.27748-100000@root.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 26 Mar 2003, Nate Lawson wrote: > I don't want to hijack the thread too much, but has thought gone into a > combined checksum and copy function? The first mention I can remember of > this is in RFC 817 p. 19-20. > > -Nate Heh, I don't think anyone has. What actually would make sense is for someone who feels like doing ASM timing to look at our bcopy routines / etc. On my Mobile Celeron, a for (i = 0; i < max; i++) array[i]=0 runs faster than bzero. :( (For one limited case I was testing.) Mike "Silby" Silbersack
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030326225530.G2075>