jail performance questions

[The Hermit Hacker]

At one point, we had >100 jails running on a server ... very sub-optimal,
but they were all doing mail/web and they were all responsive ...

On Fri, 11 Jul 2003, Ng Pheng Siong wrote:

> On Thu, Jul 10, 2003 at 04:48:21PM -0400, V. Jones wrote:
> > I've found several examples showing how to set the jails up.
> > My questions involve system requirements.  Assuming plenty of
> > disk space, 1GB ram and a dual processor PIII 1.13Ghz system,
> > how many jails can I run?  Would I notice a significant
> > performance hit if, for example, I run three jails?
>
> I haven't noticed performance degradation, but my jails aren't doing much.
>
> There are several providers selling jail-based virtual servers.
>
> I didn't consult the source, but my understanding is that a jail marks
> individual processes, so, e.g., if a jail runs just one process, that's the
> (operational, I don't know about startup) overhead for that jail.
>
>
> --
> Ng Pheng Siong <ngps at netmemetic.com>
>
> http://firewall.rulemaker.net  -+- Manage Your Firewall Rulebase Changes
> http://www.post1.com/home/ngps -+- Open Source Python Crypto & SSL
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Marc G. Fournier                   ICQ#7615664               IRC Nick: Scrappy
Systems Administrator @ hub.org
primary: scrappy at hub.org           secondary: scrappy@{freebsd|postgresql}.org