intra-jail communication slow

Bjoern A. Zeeb bzeeb-lists at
Sun Apr 15 21:39:21 UTC 2012

On 15. Apr 2012, at 19:28 , Beeblebrox wrote:

> I would like to know if this is normal for jails:
> 1. 3 different Jails for mysql , http, tinderbox.
> 2. No pf / nat running for the time being
> 3. My ifconfig for jails:
> 	inet netmask 0xffffff00 broadcast
> (tinderbox, dhcp, tftp)
> 	inet netmask 0xffffffff broadcast  (http)
> 	inet netmask 0xffffffff broadcast  (mysql)
> Problem: Jails seem to be communicating with host and with each-other
> at an observably slower rate, compared to when all services are
> host-based.

Which communications and how much slower?

> Is this normal for jails or is my netconfig problematic in some way?

In theory not, but in practise please notice that for example with mysql you may switch from unix domain sockets (usually used in "localhost" case) to normal inet socket communications etc. which may affect your overall feeling of "speed".

Knowing details and numbers etc might help here to rule out a jail specific problem.


Bjoern A. Zeeb                                 You have to have visions!
   It does not matter how good you are. It matters what good you do!

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