Enabling certain plugins takes a long time, once and again on every subsequent start of MuseScore

• Feb 1, 2019 - 09:16
Reported version
3.0
Priority
P0 - Critical
Type
Functional
Frequency
Once
Severity
S1 - Blocker
Reproducibility
Always
Status
closed
Regression
Yes
Workaround
Yes
Project
MuseScore
Tags
plugin

Enabling certain plugins in Plugin Manager, in this case Batch Convert, takes ages, some 35 seconds.
Another plugin, Color Voices, doesn't suffer from this (but doesn't work in the Windows version of MuseScore 3.0.2, even if it did in the pre 3.0.2 development versions, see #283105: builtin plugins don't work)
The builtin plugin "ABC Import" also takes that long to get enabled.
The builtin "Note Names" plugin does not (but doesn't work either, see above).
The builtin "Color Notes" plugin also takes ages to load (but doesn't work, see above)

To add insult to injury, not only the first enabling of that plugin takes ages, also every startup of MuseScore gets delayed by about the same amount, a normal startup, like on double clicking a score, takes 3-4 seconds. With one of those plugins enabled it takes 35-37 seconds. with both being enabled it takes more than 70 seconds!

This is on an i7, 8 cores (4+HT), Windows 7

Workaround is to not use plugins at all :-(

Comments

• Feb 1, 2019 - 09:42

If those plugins needs some special treatment on every startup, like getting pre-compiled, this should be done in a separate thread.
Similar issue existed in 2.x with MDL (and probably will as soon as MDL is available for 3.0), or rather with its huge soundfont, delaying the startup by some 40 seconds, see #278300: MuseScore with MDL has long startup (EDIT: turned out the plugins issue to not be related to background processing al all)

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• Feb 1, 2019 - 09:58

The builtin "Create Score" plugin loads fast and even seems to work, but crashes MuseScore shortly after having created a score
Same for "Random"
The other builtin plugins either don't load at all or do nothing.

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