lxc-ls --fancy taking a long time

[Andreas Hasenack]

Hi,

for an experiment I'm trying to deploy 100 containers on a machine. I used
the "ubuntu" charm and basically did a for loop with juju add-unit ubuntu
--to lxc:1

I had to adjust some ulimit limits, but so far, so good.

It's taking more time than I expected to deploy this, but what really
caught my attention is how long lxc-ls --fancy takes to complete:

# time lxc-ls --fancy | grep juju-machine-1|wc -l
91

real    1m36.950s
user    0m0.164s
sys    0m0.108s


The no-fancy output is quick:

# time lxc-ls
juju-machine-1-lxc-0   juju-machine-1-lxc-21  juju-machine-1-lxc-34
juju-machine-1-lxc-47  juju-machine-1-lxc-6   juju-machine-1-lxc-72
juju-machine-1-lxc-85
(...)
juju-machine-1-lxc-20  juju-machine-1-lxc-33  juju-machine-1-lxc-46
juju-machine-1-lxc-59  juju-machine-1-lxc-71  juju-machine-1-lxc-84

real    0m0.661s
user    0m0.068s
sys    0m0.052s


Is there something wrong going on, or something else I could tune, or is it
just the way it is?

The machine is a 4-core i5 NUC, with an SSDs and 16Gb of RAM. It's running
precise with lxc 1.0.0~alpha1-0ubuntu14.1~ctools0

Thanks!
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