Date: Fri, 3 Nov 1995 11:49:13 -0500 From: "Garrett A. Wollman" <wollman@lcs.mit.edu> To: Bruce Evans <bde@zeta.org.au> Cc: current@FreeBSD.org Subject: Re: Time problems Message-ID: <9511031649.AA05415@halloran-eldar.lcs.mit.edu> In-Reply-To: <199511031523.CAA11301@godzilla.zeta.org.au> References: <199511031523.CAA11301@godzilla.zeta.org.au>
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<<On Sat, 4 Nov 1995 02:23:25 +1100, Bruce Evans <bde@zeta.org.au> said:
> You may have to wait for kernel changes (or write them :-) to use the
> Pentium clock unless it is very close to an integral number of MHz.
> Another problem with using it is that it breaks tickadj(8).
> cpu_thisticklen() ignores the default value of `tick', so tickadj
> can't be used to compensate for large errors in `pentium_mhz'.
I do not see that this is the case. From kern/kern_clock.c:
if (timedelta == 0) {
time_update = CPU_THISTICKLEN(tick);
} else {
time_update = CPU_THISTICKLEN(tick) + tickdelta;
timedelta -= tickdelta;
}
Certainly looks like the correct thing to me.
-GAWollman
--
Garrett A. Wollman | Shashish is simple, it's discreet, it's brief. ...
wollman@lcs.mit.edu | Shashish is the bonding of hearts in spite of distance.
Opinions not those of| It is a bond more powerful than absence. We like people
MIT, LCS, ANA, or NSA| who like Shashish. - Claude McKenzie + Florent Vollant
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