Bad performance when saving in releases after 4.4.0

[perlausten]

This issue was first reported in the OpenNTF Slack channel in February 2022.

I have code that with ODA 4.4 consistently takes 2-3 seconds to complete on my local 12.0.1 test server (running in a VM on my PC). When I update ODA to newer versions the same code consistently takes a lot longer to complete (6-7 seconds vs 2-3 seconds). In both cases I have run the test case 3 times and straight after a HTTP restart. So the only change is an upgrade of ODA in the update site db.

I see the bad performance with ODA 10.0.0, 10.0.1 and 11.0.1 (and the 12.0.1 snapshot release that Jesse Gallagher built for me).

I have looked at commits to Database.java and Document.java from the 4.4.0 release from Feb 8, 2018 to the 10.0.0 release from Oct 26, 2018 but I have not been able to find a code commit that could appear to be the cause of the bad performance.

[perlausten]

I have made a workaound: I needed methods from Domino 10+ so I have made a 4.4.1 version which is based on the latest commit to 4.4.0 with added methods for Domino 10+. See this branch in my fork.

[markleusink]

I'm using the v10.0.1 and haven't noticed the delay yet. Is there a specific method (e.g. doc.save() ) that has a slow performance?

[perlausten]

From the original discussion in Slack at https://openntf.slack.com/archives/C0A6JTYBX/p1644511047835769 you can see that I found that the removeItem method slowed things down.

[markleusink]

I ran some tests with 10.0.1 & 11.0.1, but don't notice any performance issues for removeItem() (or hasItem()).

I also have PEDANTIC_GC_TRACKING enabled.

[PatrickKwinten]

hasItem causes Session Evaluate calls due to session.evaluate("@DocFields", doc)