Re: Degradation of GNU/Hurd ``system performance''

[Guillem Jover]

On Thu, 2011-09-22 at 04:45:55 +0200, olafBuddenhagen@gmx.net wrote:
> On Mon, Sep 05, 2011 at 06:42:22AM +0200, olafBuddenhagen@gmx.net wrote:
> > As recently I aquired the (bad) habit of running my system 24/7,
> > almost never voluntarily rebooting, I was able to make further
> > observations.
> 
> I totally forgot to mention another important bit: the growing swap
> consumption can be triggered "reliably" simply by installing a lot of
> Debian packages -- doing an "apt-get upgrade" for example. (I
> occasionally observed growing memory usage with other commands doing I/O
> on large amounts of data as well; but couldn't pinpoint any specific
> situations so far... Perhaps it's just some randomly triggered bug
> accumulating dead objects in memory or something like that?)

Something that comes to mind about apt, is that it heavily uses
non-anonymously mmaped memory. So that's something that could be
easy to produce a test-case for (even if just to discard the
hypothesis).

thanks,
guillem