Date: Tue, 8 Oct 2002 11:50:47 -0400 From: Mikhail Teterin <mi+mx@aldan.algebra.com> To: Terry Lambert <tlambert2@mindspring.com>, "Vladimir B. Grebenschikov" <vova@sw.ru>, arch@FreeBSD.org Subject: Re: using mem above 4Gb was: swapon some regular file Message-ID: <200210081150.47943.mi%2Bmx@aldan.algebra.com> In-Reply-To: <3DA2FC9F.22C66877@mindspring.com> References: <200210071630.42512.mi%2Bmx@aldan.algebra.com> <3DA2F716.C5B69C7C@mindspring.com> <3DA2FC9F.22C66877@mindspring.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tuesday 08 October 2002 11:41 am, Terry Lambert wrote: = Terry Lambert wrote: = > So whatever connections you are getting now... halve that, or less, = > to get a window for your RAM disk (you will need KVA for mappings = > for all the memory that *can* be in the window, etc.). = = To emphasize this: if you are using 4K pages, you will need: = = 4K/1M * 64G = 256M = = ...1/4 of 1G of memory outside the window, just for page tables. = = Also, if we still were using an mbuf per connection for the = template, for 1,000,000 connections, that's 256M of RAM -- another = 1/4 gig. = Yeah, most people don't think in these terms; personally, I like = to call it "Extreme BSD". 8-). Although this is fascinating read -- it getting further and further away from the original subject. And from the modified one too -- I don't believe Vladimir said anything about networking... -mi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200210081150.47943.mi%2Bmx>