----- Original Message -----
> On Wed, Sep 7, 2011 at 3:07 AM, Amos Kong <akong@xxxxxxxxxx> wrote:
> > System services on guest and host take uncertain resource, it
> > effects
> > the perf results. We can use the below two scripts to disable some
> > services of host and guest.
> >
> > stop_serivices_perf.sh is used to stop the running serivices.
> > off_service_perf.sh is used to off services when host starts up.
>
> Hi Amos, thanks! I've been thinking about those scripts, let me
> summarize my thoughts:
>
> * If we are going to make this using scripts, then we should try as
> much as possible to be distro agnostic.
> * We could detect services present on guest first before trying to
> disable them, ie, instead of just issuing a service koan stop, verify
> if there's a /etc/init.d/koan first.
We have a black list, if one server exist in the guest (/etc/init.d/*),
then stop it.
Some services need to be disabled by 'chkconfig * off', we can execute a python/shell
script in post installation, checking if service exists is also necessary.
> * Have you considered doing this env setup using shell commands
> typed
> on an ssh session, such as
>
> session = vm.wait_for_login()
> session.cmd('service auditd stop')
>
> Rather than a script? It's one less script to maintain under the
> scripts/ directory.
>
> * Your approach is a blacklist of services that will be turned off.
> What if we used a 'whitelist' approach and kept a list of the
> fundamental services needed and turn off *everything else*?
Blacklist is safe and better, the whitelist is difficult to maintain.
> Please let me know what you think about this. I'm not applying this
> for now.
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