Using up and down keys in main table is extremly slow

[stefan-kolb]

Even feels like nonresponsive at first.
Afterwards the marking jumps in chunks of ~5 when trying to cycle though the entries very fast.
It feels like the computation of the entries became even slower than on v4.3!

[alfureu]

Same issue here, overall the new JabRef 4.3.1 is using rather high CPU (i7-7700HQ @ 2.8GHz) averaging around 18-19% when nothing is being done (see attached screenshot).

You can see from the screenshot that the DB has 7 items … such a high CPU usage is unjustified.

[stefan-kolb]

@DOFfactory What java version are you using? Java < 1.8.0_172 produces constant load. See #3943.

[alfureu]

Hi @stefan-kolb, it is indeed Java 1.8.0_172 (fresh JabRef install, fully updated system Win 10). I must highlight that the high CPU usage does not happen immediately, I need to have JabRef open for a while, and as I am checking various entries, the CPU goes up and never goes back down to the initial states, e.g. <5%.

[stefan-kolb]

Ok, so we also need to keep an eye on that again! Thanks.

[alfureu]

Just an idea, but I wonder what html renderer is JabRef using for the Entry Preview (Gecko, Webkit, something else)? I have edited my preview with some goodies, and I wonder whether this is not the culprit...

[Siedlerchr]

We use the default JavaFX web component.
To which preview style are you referring? The html like style? Or are you using one of the CSL ones, e.g. ACM ?

Could you test the latest Master version?
Remember to make a backup of your library.

[alfureu]

Hi @Siedlerchr , I am using my own style that I created to look like this two-column style (sorry, coming from BibDesk). I followed the CustomExport filters to re-create it, so I wonder that this is causing such a high CPU.

I am on Windows so I am not sure how to test the latest Master version - do you want me to clone the git somewhere? I would appreciate some short how-to, if I may bother you.

[stefan-kolb]

You can try the latest build from http://builds.jabref.org/master. It is packaged similar to the release versions.

[alfureu]

Ok, tested, seems fixed. Although the UI is ugly, hope it will be fixed or at least adjustable

[Siedlerchr]

Thank you for reporting this issue. We think, that is already fixed in our development version and consequently the change will be included in the next release.

We would like to ask you to use a development build from https://builds.jabref.org/master and report back if it works for you. Please remember to make a backup of your library before trying-out this version.