Hello, The Narayana team are proud to announce the latest release of Narayana! The release notes for this version are available from: https://issues.jboss.org/secure/ReleaseNote.jspa?projectId=12310200&v... The Wildfly issue for our upgrade is https://issues.jboss.org/browse/WFLY-12844 and PR is https://github.com/wildfly/wildfly/pull/12833. It will be merged in due course and when it is a nightly build of WildFly that includes the upgrade will be available over here: https://ci.wildfly.org/viewType.html?buildTypeId=WF_Nightly The commit is: https://github.com/wildfly/wildfly/pull/12833/commits/bc6fcabf524a56e0d0d... As is now normal, in this release we compared ourselves against four other leading open source competitor products with a view to checking that the release remains competitive. Results are produced using JMH (a micro benchmark harness created by the OpenJDK project team available from http://openjdk.java.net/projects/code-tools/jmh/). We have attempted to configure each product on an equal footing by choosing sensible defaults for each tunable parameter and by ensuring that recovery is enabled, although we do configure narayana with the journal store, which is our best performing transaction log storage mechanism. If you have any recommendations for other transaction managers or how to tune the configuration then please let us know so that we can update our test job. The benchmark runs a transaction containing two dummy resources. We will let the TPS (transactions per second) figures speak for themselves, suffice to say that when more and more threads are thrown at the workload we scale better showing that we have excellent control over parallelism. Threads A B C D Narayana 1 2967 9398 6509 9 7614 10 3143 11340 62977 20042 76672 50 2929 11409 256725 19074 294125 100 2868 10926 259592 19516 379623 300 2488 11220 256669 20847 447479 400 2433 11365 245052 20980 447873 And there is a bar chart too <https://github.com/jbosstm/artifacts/blob/master/jobs/tm-comparison/bench... (which was generated by the following commit https://github.com/jbosstm/artifacts/commit/3f292613922bfdb902b654a590884... ) Happy coding, The Narayana team -- Michael Musgrove mmusgrov(a)redhat.com JBoss, by Red Hat Registered Address: Red Hat Ltd, 6700 Cork Airport Business Park, Kinsale Road, Co. Cork. Registered in the Companies Registration Office, Parnell House, 14 Parnell Square, Dublin 1, Ireland, No.304873 Directors:Michael Cunningham (USA), Vicky Wiseman (USA), Michael O'Neill, Keith Phelan, Matt Parson (USA)