Re: Rising io_load results Re: 2.5.63-mm1

Con Kolivas
2003-02-28T00:17:54Z

On Fri, 28 Feb 2003 11:06 am, Andrew Morton wrote:
> Con Kolivas <kernel@kolivas.org> wrote:
> > On Fri, 28 Feb 2003 09:01 am, Dave McCracken wrote:
> > > --On Thursday, February 27, 2003 13:44:03 -0800 Andrew Morton
> > >
> > > <akpm@digeo.com> wrote:
> > > >> ...
> > > >> Mapped: 4294923652 kB
> > > >
> > > > Well that's gotta hurt. This metric is used in making writeback
> > > > decisions. Probably the objrmap patch.
> > >
> > > Oops. You're right. Here's a patch to fix it.
> >
> > Thanks.
> >
> > This looks better after a run:
> >
> > MemTotal: 256156 kB
> > ...
> > Mapped: 4546752 kB
>
> No, it is still wrong. Mapped cannot exceed MemTotal.

Hmm a few more runs and io_load starts rising again and this is the meminfo in
the middle of a run:

MemTotal: 256156 kB
MemFree: 26564 kB
Buffers: 11300 kB
Cached: 198048 kB
SwapCached: 0 kB
Active: 7164 kB
Inactive: 204736 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 256156 kB
LowFree: 26564 kB
SwapTotal: 4194272 kB
SwapFree: 4194272 kB
Dirty: 5780 kB
Writeback: 0 kB
Mapped: 6000680 kB
Slab: 13056 kB
Committed_AS: 7040 kB
PageTables: 200 kB
ReverseMaps: 664

Con