I see what you mean, by the way, thanks for the response! Im going to check that, but what bugs me its that a week a go i could use jack with periods 128 or even lower and wifi turned on, didn't have to make any special change to use a lv2 plugin, but suddenly it started to Xrun on a plugin i made, naturally I though it was my plugin causing this, but as I tested it turn out that even with no connections or a jack client instantiated the xruns would happen with period 128. About the jackd command, the -P is not being fed because I set priority on default, and throughout this and last week I rebooted my notebook a bunch of times hehe, I was hopping to have some idea non related to jack priority, since I didn't change anything on jackd before it starting to xrun a lot...

Thanks anyway =)