Date: Wed, 17 Oct 2007 15:16:21 -0600 From: James <jamesh@lanl.gov> To: Josh Paetzel <josh@tcbug.org> Cc: Yuri <yuri@rawbw.com>, freebsd-questions@freebsd.org, Jonathan Chen <jonc@chen.org.nz> Subject: Re: Why FreeBSD procfs is so different from the Linux one? Message-ID: <1192655781.64553.37.camel@secretariat.lanl.gov> In-Reply-To: <20071017202927.GB4814@tcbug.org> References: <1192613089.4715d4e1d484b@webmail.rawbw.com> <20071017100205.GB92302@osiris.chen.org.nz> <20071017202927.GB4814@tcbug.org>
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On Wed, 2007-10-17 at 15:29 -0500, Josh Paetzel wrote: > Jonathan Chen wrote: > > On Wed, Oct 17, 2007 at 02:24:49AM -0700, Yuri wrote: > > > Hi, > > > > > > When I look at /proc/PID/ in FreeBSD I see the files: > > > cmdline ctl dbregs etype file fpregs map mem note notepg > > > regs rlimit status > > > and in Linux: > > > cmdline cpu cwd environ exe fd maps mem mounts root stat statm status > > > > > > Why there's such a difference in procfs interface to the process information? > > > > > > In addition Linux has /proc/self/ link which is named curproc in FreeBSD. > > > > > > Isn't it better to have the same interface across the systems? > > > > Maybe. Why don't you get the Linux guys to change theirs? FreeBSD has > > been around longer. > > Well, technically no. BSD predates linux, but linux predates FreeBSD > by a few years. In general though, linux is a reimplimentation and > they've had a habit of changing things in the process, but for any > given interface it's not generally accurate to say linux is the > reimplimentation....sometimes they are, sometimes they aren't. > procfs was an innovation of plan9, so I suppose the thing to do would be to refer to *their* procfs. However, either way. I have 1 linux box, something like 15 FreeBSD boxen, and I have to say that on procfs, linux generally does a job that I prefer to see. On FreeBSD, it feels more tacked on, while on linux it feels like there's a lot of rich information there. James
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