Date: Thu, 16 Nov 2000 23:09:17 +0000 (GMT) From: George Reid <greid@ukug.uk.freebsd.org> To: flaw <flaw@vt.edu> Cc: freebsd-questions <freebsd-questions@FreeBSD.org> Subject: RE: FreeBSD VM Message-ID: <Pine.BSF.4.21.0011162305520.9302-100000@sobek.nevernet.net> In-Reply-To: <3A1C57B4@zathras.cc.vt.edu>
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On Thu, 16 Nov 2000, flaw wrote:
> Maybe due to the amount of memory, the program is still in memory so no page
> faults are induced. But why cnt.v_vm_faults (cnt is the vmmeter) are
> incremented much more frequently than p->p_stats->p_ru.ru_majflt?
cnt.v_vm_faults is number of page faults for the whole system (as opposed
to one particular process (correct me if I'm wrong, don't have the source
handy).
> Also, the swapper process with pid 0 (why pid 0?) has ru_majflt the same
> as cnt.v_vm_faults.
Think of the swapper process as a pseudoprocess - it's part of the
kernel (which controls all the VM stuff).
G
"And then it comes to be that the soothing light
at the end of your tunnel was just a freight
train, comin' your way."
George Reid * greid@ukug.uk.freebsd.org
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