Re: [PATCH] possible fix for the runtime going backwards warnings

On Wed, Feb 22, 2006 at 11:01:39AM -0500, John Baldwin wrote:
Is it more or less than before the patch? Also, what happens if you just back

Less than (for me).

The pagezero ones are truly odd. calcru() shouldn't be called for kthreads
very often (if at all). I wonder if your tickrate is changing out from under
you. Try editing sys/i386/i386/tsc.c and where it does 'set_cputicker(rdtsc,
tsc_freq, 1)' change the last parameter to '0' and see if they go away.

May it interfere with ntpd activity? I have those log lines in one chunk:
Feb 22 03:36:43 pobrecita ntpd[422]: time reset +0.622691 s
Feb 22 03:36:43 pobrecita ntpd[422]: kernel time sync disabled 2041
Feb 22 03:37:45 pobrecita kernel: calcru: runtime went backwards from 292542 usec to 292537 usec for pid 29 (pagezero)
Feb 22 03:37:45 pobrecita kernel: u 0:0/0 s 38:292542/292537 i 0:0/0

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