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Date: Fri, 7 Mar 2008 09:55:02 -0500
From: Wesley Shields <wxs@FreeBSD.org>
To: freebsd-hackers@freebsd.org
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References: <20080306212044.GA72211@marinos.ceid.upatras.gr>
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Subject: Re: Network Throughput between jail and base system
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On Fri, Mar 07, 2008 at 12:13:04AM +0200, Stefan Lambrev wrote:
> Greetings,
> 
> 
> Ilias Marinos wrote:
> > Hello all,
> > 	I have a jail to my FreeBSD-STABLE, in which I run some
> >   
> uname -a will be more helpful then "FreeBSD-STABLE".
> > services.I have configured and setup this jail using ezjail-admin.
> > marinosi@marinos:~$ jls
> >    JID  IP Address      Hostname                      Path
> >      1  192.168.1.100   ws			      /usr/jails/ws
> > /usr/jails/ws
> >
> > #Jails
> > ezjail_enable="YES"
> > ifconfig_lo1="192.168.1.100 netmask 0xffffffff" # Jail iface
> >
> > I use lo1 as jail interface and I nat internet traffic to it with pf:
> > nat on $ext_if from $ws to any -> ($ext_if)
> >
> > 	Today I 've tried to scp a big directory inside the jail and
> > I've noticed that I was secure copying with 2-3MB/s .That sounds too
> > weird for me and I would like to hear some opinions , for what it may be
> > the problem.
> >
> >   
> You should investigate where the bottle-neck is. It's probably not in
> the network protocol.
> Most probably it is limitation of your CPU or your HDD(s).
> I think (not sure) jail have default limit to % of the CPU resources, so
> if you encrypt the stream
> most probably the limitation is in the CPU.
> You can check http://wiki.freebsd.org/JailResourceLimits for more
> information.

Based upon that wiki page I'm led to believe that this is not in any
branch of FreeBSD yet.  That is, it's not in CVS.

-- WXS