Date: Fri, 27 Apr 2001 11:18:44 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: John Baldwin <jhb@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/alpha/alpha mp_machdep.c Message-ID: <15081.36308.59291.649794@grasshopper.cs.duke.edu> In-Reply-To: <XFMail.010427081311.jhb@FreeBSD.org> References: <20010427105814.A47421@grasshopper.cs.duke.edu> <XFMail.010427081311.jhb@FreeBSD.org>
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John Baldwin writes:
> >
> > Could it be because hz on a rawhide is really 1200, but we still
> > divide by 8 to get stathz? Eg, stathz is 150 and 150/128 is roughly 117%
>
> Yes, that would do it. If that is really the case, then simply adjusting
> stathz for the rawhide would fix that easily.
I think I had a patch for this once... Ah, yes:
Index: sys/alpha/alpha/clock.c
===================================================================
RCS file: /home/ncvs/src/sys/alpha/alpha/clock.c,v
retrieving revision 1.13
diff -u -r1.13 clock.c
--- sys/alpha/alpha/clock.c 2000/01/04 11:30:01 1.13
+++ sys/alpha/alpha/clock.c 2000/01/05 15:03:54
@@ -191,7 +191,7 @@
alpha_timecounter.tc_frequency = freq;
init_timecounter(&alpha_timecounter);
- stathz = 128;
+ stathz = hz / 8;
platform.clockintr = (void (*) __P((void *))) handleclock;
/*
I don't remember why I never committed that.
> > FWIW, I'd like to see all your clock patches committed.
>
> Gimme an hour or so. :) I think I'm going to redo the alpha clock stuff
> slightly so that platforms will actually set a platform.clockintr() for real
> that handles both hardclock and statclock. The default will do what the old
> function I modified for SMP does, and on teh 4100 we'll use the current
> handler, on teh 2100 we will use one that uses forward_*clock since the clock
> is roundrobin, etc.
Sounds good.
Drew
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