Re: [vserver] monitoring all contexts? (super context!)

From: Corey Wright <undefined_at_pobox.com>
Date: Tue 09 Mar 2010 - 16:05:29 GMT
Message-Id: <20100309100529.c81f38c3.undefined@pobox.com>

On Tue, 9 Mar 2010 09:51:49 -0600
Corey Wright <undefined@pobox.com> wrote:

> On Tue, 09 Mar 2010 14:01:21 +0000
> Ed W <lists@wildgooses.com> wrote:
>
> > Hi, I would like to run iotop to examine some performance counters, but
> > simply running it on the host obviously doesn't show the guest
> > processes.
> >
> > So instead I try using context 1
> >
> > chcontext --ctx 1 iotop
> >
> > However, this gives me an error about missing /proc/vmstat, and in fact
> > if I change the above command to an "ls" then it's absolutely correct
> > that context 1 cannot see the full /proc tree
> >
> > I'm running 2.6.32.8-grsec2.1.14-vs2.3.0.36.29.1 - how can I run iotop
> > (or any arbitrary command) in a context which can see all guest
> > processes AND have full access to the /proc filesystem?
>
> i'm not running with the grsec patch, but i believe the attached
> script/wrapper deals with your /proc problem (if i remember correctly).

here's a more concise view (ie hides all the boilerplate) of the difference
between vtop (on which i based the script) and viotop.

it also gives credit where credit is due (ie i plagiarized vtop ;-).

corey

-- 
undefined@pobox.com

Received on Tue Mar 9 16:14:43 2010
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