basic question about xruns

[babag]

trying to sort out xruns. never had issues with windows and am now reading up on configs and such to minimize xruns. i don't do much recording. 95% of what i do is import, edit, and mix existing audio files. i'm running ubuntu studio with the kx repositories added and have pretty much just added all of the kx stuff so, although i didn't install kx as a distro, that's more or less what i'm running.

all that said, cadence is currently showing me something like 30 xruns when i open reaper. if i open a project and hit play, i get one xrun when it starts but none after. is this a scenario that i should worry about or not? my buffer is 512 and period is 2 or 3. not at the daw at the moment.

thanks for any opinions,
babag