Date: Fri, 15 Jan 1999 09:39:14 -0800 (PST) From: Jaye Mathisen <mrcpu@internetcds.com> To: Mike Smith <mike@smith.net.au> Cc: current@FreeBSD.ORG Subject: Re: New NMBCLUSTERS tuning alternative Message-ID: <Pine.NEB.3.95.990115093813.634A-100000@schizo.cdsnet.net> In-Reply-To: <199901151730.JAA01141@dingo.cdrom.com>
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I love it. Haven't tried it, but the concept is great, and on the assumption it works, will make things even easier... Keep 'em coming. :) On Fri, 15 Jan 1999, Mike Smith wrote: > > With this commit, I'm trialling a simple method for providing tuning > hints for otherwise statically-set parameters from the bootloader. > > You can now say: > > set kern.ipc.nmbclusters=XXXX > > to effectively set NMBCLUSTERS to XXXX. > > I've looked at other approaches, particularly a hook in the SYSCTL_* > defines to search the environment and set the variables when the MIB > is instantiated, but this won't happen early enough for some things. > > Any suggestions welcome, of course. > > ------- Forwarded Message > > msmith 1999/01/15 09:25:03 PST > > Modified files: > sys/i386/i386 machdep.c > Log: > Fetch an overide for NMBCLUSTERS from the kernel environment. Never allow > the value to be reduced below that defined when the kernel was built. > > Revision Changes Path > 1.322 +7 -1 src/sys/i386/i386/machdep.c > > Modified files: > sys/kern kern_environment.c > sys/sys systm.h > Log: > Add getenv_int(), specifically for retrieving integer values from kernel > environment variables. This makes it easy to pass tuning parameters > in from the bootloader. > > Revision Changes Path > 1.4 +20 -1 src/sys/kern/kern_environment.c > 1.84 +2 -1 src/sys/sys/systm.h > > > ------- End of Forwarded Message > > > -- > \\ Sometimes you're ahead, \\ Mike Smith > \\ sometimes you're behind. \\ mike@smith.net.au > \\ The race is long, and in the \\ msmith@freebsd.org > \\ end it's only with yourself. \\ msmith@cdrom.com > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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