Date: Thu, 04 Nov 1999 20:36:36 -0800 From: Mike Smith <mike@smith.net.au> To: Arun Sharma <adsharma@home.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: kstat - an API for gathering kernel stats Message-ID: <199911050436.UAA01309@dingo.cdrom.com> In-Reply-To: Your message of "Thu, 04 Nov 1999 19:22:52 PST." <19991104192252.A2194@home.com>
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> On Thu, Nov 04, 1999 at 06:30:01PM -0800, Mike Smith wrote: > > Sysctl is faster than kstat once you have performed the name->oid > > lookup. There is basically nothing that kstat can do that sysctl can't > > do better and faster, apart from lookup-by-name. > > Can a loadable module, say a network driver register variables with > sysctl ? Can sysctl itself be made a loadable module ? As for the speed, > I don't think it is an issue - I can add another interface for getting > a kstatid and make it fast. Yes and no - sysctl is too central to the operation of the system to become optional. And the only reason I mentioned speed was that you were touting it as a benefit of kstat. > I'm not really saying that kstat is better than sysctl. In fact, it > was an oversight on my part not to look closely at sysctl. My goal > was to get some tools - specifically ktop and xosview to work on > FreeBSD. So I don't particularly care how we get there - if it means > adding a few more variables to the sysctl MIB, so be it. That would be the right way to do it, yes. > Now, if I make those changes and submit a patch, will it be considered > for inclusion ? Sure! -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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