Re: [PATCH 2/3] vmscan: make mapped executable pages the firstclass citizen

[Wu Fengguang]

On Wed, May 20, 2009 at 10:47:31PM +0800, Andi Kleen wrote:
> > > One scenario that might be useful to test is what happens when some
> > > very large processes, all mapped and executable exceed memory and
> > 
> > Good idea. Too bad I may have to install some bloated desktop in order
> > to test this out ;) I guess the pgmajfault+pswpin numbers can serve as
> > negative scores in that case?
> 
> I would just generate a large C program with a script and compile
> and run that. The program can be very dumb (e.g. only run
> a gigantic loop), it just needs to be large.
> 
> Just don't compile it with optimization, that can be quite slow.
> 
> And use multiple functions, otherwise gcc might exceed your memory.


Hehe, an arbitrary C program may not be persuasive..but I do have some
bloated binaries at hand :-)

-rwsr-sr-x 1 root wfg   36M 2009-04-22 17:21 Xorg
lrwxrwxrwx 1 wfg  wfg     4 2009-04-22 17:21 X -> Xorg
-rwxr-xr-x 1 wfg  wfg   39M 2009-04-22 17:21 Xvfb
-rwxr-xr-x 1 wfg  wfg   35M 2009-04-22 17:21 Xnest
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/