Negative caching

Hal Burgiss hal at
Sat Jun 20 14:28:24 UTC 2009

On Fri, Jun 19, 2009 at 06:38:55PM -0400, Hal Burgiss wrote:
> On Fri, Jun 19, 2009 at 02:16:00PM -0400, Rashkae wrote:
> > 
> > Incidentally, if you want to see how much memory is being demanded by
> > certain applications, /proc/meminfo is a great tool.  Take a look a
> Hmmm .... I killed everything I have opened except 3 terminal windows,
> including a few background things like nautilus and evolution, and I still
> have a problem:

This is gnome w/o compiz, nautilus and evolution after 2 day uptime.

>  CommitLimit:     3512236 kB
>  Committed_AS:    1769624 kB
> I'll kill X later and see where that gets. But it looks like X + gnome + basic
> system stuff is eating me out of house and home, so to speak. I did the same
> thing on my work system and it dropped to ~1.2G.

I've played some more with this. Further results:

Logged out of X, sitting at GDM login:
CommitLimit:     3512236 kB
Committed_AS:     452512 kB

Log back in / GNOME (including nautilus,etc, but no user apps and no effects):
CommitLimit:     3512236 kB
Committed_AS:     789400 kB

Reboot / at GDM login:
CommitLimit:     3512236 kB
Committed_AS:     482064 kB

Start XFCE new session w/compiz:
CommitLimit:     3512236 kB
Committed_AS:     660792 kB

Log out

Start GNOME new session w/o compiz:
CommitLimit:     3512236 kB
Committed_AS:     878332 kB

(Reboot, new kernel courtesy of updates)

XFCE w/compiz and 1 konsole window after reboot, no user opened apps:
CommitLimit:     3512248 kB
Committed_AS:     709192 kB

XFCE w/typical app mix including FF, Chrome, multiple Konsole windows and a few vims.
CommitLimit:     3512248 kB
Committed_AS:    1577520 kB

Hmmmm. Hungry system.


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