There is some timer thread between the image and the vm that ticks every millisecond, that is the cause. I don't know what it does but it is apparently needed. Anyway, that is how I understood it from Igor and Eliot, long ago. So basically, the VM is always slightly busy.
On 09 Feb 2015, at 21:11, Norbert Hartl <norbert@hartl.name> wrote:
I have an installation where a pharo powered hardware is used in a closed case. Over time that collects quite some heat. One reason for this is that the pharo vm is taking approx. 6% CPU all the time. The only thing that happens is network/sockets. I suspended the ui thread in the image but on this platform it doesn't help. Are there any tweaks to lower the polling and the activity of the image/vm even more?
thanks,
Norbert