Turn off two of the aspects, see if this makes a difference to
performance.
Rewrote the event persistence layer to use a bounded queue.
Add detailed tracing of execution times.
Add performance checks to authentication.
Put caches into the user lookup process.
Another piece of instrumentation.
Corrected cache-check logic.
Clean up and document the interface to the store of users.
Deal with intermittent issue that prevents starting multiple Taverna
Servers in the same Tomcat.
Reduce load of debug-level logging
Add more performance logging.
Do a stripped down auth-provider for Spring Security.
Add detailed performance tracing
Put a cache in front of the password checker.
Turn off the more intrusive performance logging.
Make the cache a little less eager.
Get the sense of the test right!
Tweaking, removing crud.