At Spil Games we have been running Swift for more than two years now and are hosting over 400 million files with an average file size of about 50 KB per object. We have a replica count of three so there are 1.2 billion files to be stored on the object servers. Generally speaking, Swift has turned out to be a solid object storage system. We did however run into some performance issues. Below we’ll describe how we analyzed and solved them.