Re: [uml-user] UML tuning advice

[Konrad M. <ko...@su...>]

Folks
Not having tried this approach myself, I was giving it a whirl this
morning, and it seems to be happy starting up this way.  However,
because I start the UML's remotely via ssh, I normally prefix the
startup command with "screen" so that I can detach from the session. 
This doesn't seem to work though when using the TMPDIR variable like
this:

screen TMPDIR=/opt/tmp11 /opt/2.6.6/uml11/linux mem=256M . . . .<rest of
args>

Any suggestions?

Thanks
Konrad


On Wed, 2004-09-29 at 01:00, Net Llama! wrote:
> On 09/28/2004 03:15 PM, Josh wrote:
> >>** Mount a tmpfs volume and set the TMPDIR env variable before running the UMLs
> >>mkdir /uml/tmp1
> >>mount -t tmpfs -o size=128M none /uml/tmp1
> >>TMPDIR=/uml/tmp1 /path/to/linux mem=128M ...<rest of uml args>
> >>
> >>Those are the three biggest gains for UML performance.
> > 
> > 
> > I haven't tried this one yet, perhaps I should...
> 
> Pulling a number out of thin air, i'd say that 50% of your performance 
> gains are from using TMPFS.  If you've not done that, you absolutely 
> need to if you expect anything close to usable performance.
>