JabRef performance issues with large bib file

[simonharrer]

JabRef version 3.x on Windows 10

Steps to reproduce:

1. Create BibTeX file with 100000 entries. (automatically generated using a ruby script)
2. Open with JabRef
3. Wait for nothing to happen for a few minutes
4. JabRef opens but is very unresponsive.

test.zip

[tobiasdiez]

Well, the loading time was acceptable for me (< 1 min) but JabRef uses 2 GB of memory :). Will have a look at it.

[stefan-kolb]

There are several things that can cause this problems:

• Autocompletion performance is not optimized

[simonharrer]

You could try to profile it using jvisualvm which is shipped with Java. The script which generates the bib file is available since 1edd7d3

[Siedlerchr]

You could also try Java Mission Control (part of jdk)
http://www.oracle.com/technetwork/java/javaseproducts/mission-control/java-mission-control-1998576.html

[tobiasdiez]

I actually plan to write a few benchmarks using JMH. So we have a reliable way to later gauge if some changes improve the performance or not.

[stefan-kolb]

For me, save as takes ages when selecting a crowded folder. Dunno if this is somehow related to JabRef or only Java in general.

[koppor]

The first benchmarks have been done in #1103.

[stefan-kolb]

Close this for now? We got significantly better on the major points didn't we?

[simonharrer]

There is still room for improvement. But as far as I know it is good enough at the moment.