Feature,EhCache,Google Guava,Caffeine
Performanc with 8 threads,11252172 Ops/sec,12434655 Ops/sec,181703298 Ops/sec
Async Loading,No,Not available out of the box,Available out of box
Scala Support,No,ScalaCache provides google guava[however key can only be String],Scaffeine
User base,1.2k stars on Github,29k stars on Github,5k stars on Github