"ataylor" wrote : | When running the perf examples i get no difference in performance between nio and asyncio, in fact when i set journal-sync to false nio is faster. That's to be expected. Setting journal-sync to false means transactions aren't synched at commit/rollback - they're just written to the OS buffers and the OS lazily writes them. So you get performance at the expense of reliability. With AIO you get performance with no reliability hit (that's the theory anyway) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149375#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...