Why aptitude is sometimes slow inside xen domU ?

["Javier Barroso" <javibarroso@gmail.com>]

Hi list,

My aptitude is very slow when it is running inside domU:

aptitude take 3 minutes on:

Writing extended state information... 67%

I'm installing iotop to monit this issue

Any tip ?

Thanks

PD: I had memory issues previously (in others vm), I solved it with:
echo 'APT::Cache-Limit "25165824";' >> /etc/apt/apt.conf