On Wed, 4 Dec 2002, Philip Hallstrom wrote:

> > > > server is a dual PII 300 with 512 megs of ram, this should be fine
> > > > to handle 2 jails, right ?
> > >
> > > unless you start gettinjg into high memory circumstances (ie.
> > > jakarta-tomcat is a major dog for memory), 2 wouldn't be a problem ...
>
> Just for comparison...
>
> I'm running four jails - apache/php on all, mysql on one, and postgres
> on the host on a 700Mhz, 512mb ram, 2x9gb scsi drives.
>
> Top says:
>
> last pid: 86606;  load averages:  0.00,  0.02,  0.00            up 53+20:08:57  
>10:48:36
> 93 processes:  1 running, 92 sleeping
> CPU states:  1.9% user,  0.0% nice,  2.6% system,  0.0% interrupt, 95.5% idle
> Mem: 203M Active, 173M Inact, 90M Wired, 27M Cache, 61M Buf, 7856K Free
> Swap: 512M Total, 756K Used, 511M Free
>
> Hardly any traffic... it's an internal dev machine hit by about 10
> people...

101 Jails:

last pid: 13467;  load averages: 21.09, 13.50, 19.54    up 17+12:23:50  13:43:55
1576 processes:4 running, 1572 sleeping
CPU states: 59.0% user,  0.0% nice,  9.0% system,  0.0% interrupt, 32.1% idle
Mem: 2553M Active, 649M Inact, 474M Wired, 157M Cache, 199M Buf, 9120K Free
Swap: 3072M Total, 184M Used, 2888M Free, 5% Inuse

I think I peaked that machine around 196 jails at one point, before we picked
up a second server as well as before we were able to do multiple domains
per VM cleaner then one jail each ...

the load average is mis-leading, as I've seen it hit as high as 1000 and still
allow me to type on the machine, in order to rectify the problem process(es) ...

God, I love FreeBSD :)



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