Date: Thu, 4 Jun 1998 16:57:55 -0500 (EST) From: "John S. Dyson" <dyson@FreeBSD.ORG> To: mike@smith.net.au (Mike Smith) Cc: dyson@FreeBSD.ORG, jonny@jonny.eng.br, hackers@FreeBSD.ORG Subject: Re: kernfs/procfs questions... Message-ID: <199806042157.QAA00837@dyson.iquest.net> In-Reply-To: <199806042029.NAA01825@dingo.cdrom.com> from Mike Smith at "Jun 4, 98 01:29:45 pm"
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Mike Smith said: > > I can see quite a lot of use in mmapping data; reducing the copy in/out > overheads for statistics gathering just for starters. > One has to be very careful with that, esp on SMP systems. Synchronization of data is sometimes critical. Exposing pieces of the kernel and structures is frought with compatibility problems. Those are some of the reasons why /dev/kmem is so lame. -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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