Date: Fri, 19 Feb 1999 23:42:09 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: dyson@iquest.net Cc: tlambert@primenet.com, toasty@home.dragondata.com, mike@smith.net.au, hackers@FreeBSD.ORG Subject: Re: vm_page_zero_fill Message-ID: <199902192342.QAA11287@usr02.primenet.com> In-Reply-To: <199902172139.QAA70278@y.dyson.net> from "John S. Dyson" at Feb 17, 99 04:39:30 pm
next in thread | previous in thread | raw e-mail | index | archive | help
> > This is robbing Peter to pay Paul; in a way. The base assumption > > that you are hiding is that you aren't constrained by memory > > bandwidth. This isn't true if you are nearly saturating a PCI > > bus with 4 BT848's (to pick the highest memory bandwidth application > > I know about). > > I just realized something: > > Memory bandwidth is >> PCI bandwidth on good designs. I believe > that the PCI and memory busses are decoupled on at least some X86 machines. Well, I was just guessing about an application that would eat sufficient memory bandwidth. If BT848's on PCI can't, then make up your own story for what his ultra-secret product actually is. 8-). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199902192342.QAA11287>