I've hosted my Magento store on Linode. Since their last update around 17th Aug 18, my CPU utilization is constantly on hike. Before that it was at around 25% since I installed it some months before. It then gradually increased (within a span of around 15 days) and is now constantly beyond 100%. I have just around 10 products and 3 orders. I'm using Apache/Maria Db.
I think it is some hardware related issue as my development server on Linode is also at same CPU utilization, though it has almost 0 load. Still searching for the some resolution...