Date: Sat, 23 Jun 2001 10:18:10 -0700 (PDT) From: Matt Dillon <dillon@earth.backplane.com> To: Jonathan Lemon <jlemon@flugsvamp.com> Cc: Alfred Perlstein <bright@sneakerz.org>, Mike Silbersack <silby@FreeBSD.ORG>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, jlemon@FreeBSD.ORG, bmilekic@FreeBSD.ORG Subject: Re: cvs commit: src/sys/netinet tcp_input.c tcp_output.c tcp_subr.c tcp_timer.c tcp_usrreq.c tcp_var.h Message-ID: <200106231718.f5NHIAm72921@earth.backplane.com> References: <200106230321.f5N3Llv09510@freefall.freebsd.org> <20010623102801.F57058@sneakerz.org> <200106231633.f5NGXqp72502@earth.backplane.com> <20010623120531.V33375@prism.flugsvamp.com>
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:> :
:> :-Alfred
:>
:> I think the new way might even be faster. If the in_pseudo() call could
:> be optimized, the new way would definitely be faster. The problem with
:
:The in_pseudo() call _is_ optimized, at least to some point; its
:inline assembly in sys/i386/include/in_cksum.h.
:
:--
:Jonathan
Ah. Hmm. It's a toss-up. The inline calculations are going to be
about the same as a (cache hit) read, so I suppose we could keep
in_pseudo(). The bzero() is another matter, however.
-Matt
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