High memory usage

[bitmap]

Thanks all, nothing to worry about so im happy with that.

@bitmap, it does have a heat sink on it, and it runs around 20 docker containers, but doesnt overheat at all.  I live in the UK tho so nothing overheats.

Oh yeah, I didn't mean overheat. It's just normal for the Pi to be hotter than I'd really like a credit-card sized object to be...I've seen people keep them operating out in the open without a case and I guarantee that's a nice burn imprint waiting to happen.