Date: Sat, 21 Aug 1999 17:10:04 +0100 From: Ben Smithurst <ben@scientia.demon.co.uk> To: Greg Black <gjb-freebsd@gba.oz.au> Cc: freebsd-security@FreeBSD.ORG Subject: Re: Securelevel 3 ant setting time Message-ID: <19990821171004.A24337@lithium.scientia.demon.co.uk> In-Reply-To: <19990820214657.1605.qmail@alice.gba.oz.au> References: <XFMail.990820115204.andrews@TECHNOLOGIST.COM> <19990820214657.1605.qmail@alice.gba.oz.au>
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Greg Black wrote:
> If you happen to have a machine that needs its regular tweaks by
> ntpdate to exceed half a second, then you can adjust the kernel
> tick a few units either side of its default setting of 10000 so
> that things stay relatively stable.
Where should I change this? I tried changing the value in
/sys/conf/param.c (after copying it to the compile directory) and
it seems to have had no effect. I changed it to 9997, I calculated
this as the best value given that my machine's clock seems to gain
about 1 second per hour. The clock still seems to be running fast,
according to the adjustments made by ntpdate. The new value shows up in
kern.clockrate so I must have got something right.
root@scientia:/sys/compile/SCIENTIA# sysctl kern.clockrate
kern.clockrate: { hz = 100, tick = 9997, tickadj = 5, profhz = 1024, stathz = 128 }
--
Ben Smithurst | PGP: 0x99392F7D
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