[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: Heads up: moving some uvmexp stat to being per-cpu
On Thu, Dec 16, 2010 at 7:07 AM, David Holland
> On Tue, Dec 14, 2010 at 08:49:14PM -0800, Matt Thomas wrote:
> > I have a fairly large but mostly simple patch which changes the
> > stats collected in uvmexp for faults, intrs, softs, syscalls, and
> > traps from 32 bit to 64 bits and puts them in cpu_data (in
> > cpu_info). This makes more accurate and a little cheaper to update
> > on 64bit systems.
> Would this be a good opportunity to retire the sysctl that returns the
> non-ABI-stable uvmexp, or perhaps change its name to indicate that
> it's not stable/supported?
> David A. Holland
Hi, in my humble opinion, retiring the exported uvmexp would be a good move,
it carries counters for highly page-out-algorithm specific events,
that might change if those algorithms are tuned changed,
and such changes shouldn't break the ABI.
Die mystischen Erklärungen gelten für tief;
die Wahrheit ist, dass sie noch nicht einmal oberflächlich sind.
-- Friedrich Nietzsche
[ Die Fröhliche Wissenschaft Buch 3, 126 ]
Main Index |
Thread Index |