I saw a presentation from a company named parallel machines, they claim x800 faster than Spark performance on pagerank, and you know what, working with GraphX, I am not utterly disbelieving them. Spark has a long way to go on terms of performance.<p>Having that said, this article is completely misleading and incorrect technically. Tachyon is documented in Spark docs as a off heap storage solution since Spark SQL was called Shark. Nothing new and nothing &quot;competing&quot; with spark. It&#x27;s still catalyst that runs the spark SQL queries. Just a better memory store. This article is simply wrong.