QGIS – How to Tell Which QGIS Plugins Are Slow to Load

qgisqgis-plugins

We have new users of QGIS in our office that are dismayed immediately by the startup time of QGIS – which hangs on the 'Restoring Loaded Plugins' message on the splash screen.

Is there a way to tell which plugins take long to load and are causing QGIS to load slowly? This can sometimes take ~1minute!

The only solution so far is to disable almost every plugin that comes with the default installation and bring back the plugins one by one as you need them – but so far we haven't figured out which default plugin is causing the slow load time.

Best Answer

Hidden feature that I never made a UI for

import pprint
pprint.pprint(qgis.utils.plugin_times)

Run it in the Python console

Also see the plugin called Plugin Load Times: (https://gitlab.com/GIS-projects/Plugin-Load-Times)

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QGIS – How to Fix Extreme Slowness

So after taking into account what ThomasG77 told me to fix my QGIS, I've found that indeed creating a new profile fixes the slowdown, but I didn't want to have to create a new profile everytime it got this slow, then reinstall my plugins,etc. The problem does seem to lie with the QGIS3.ini which kept getting bigger and bigger (After creating a new profile I saw that the default QGIS3.ini which I was using was 42000 times bigger than the one that you begin with from scratch).

However I found a simple solution to fix it without having to delete anything or create a new profile. You simply need to open QGIS, go in Settings > Options... > System. Then under "Settings" you'll see this:

I tried it and this not only reset my QGIS3.ini from 547k KB to 59KB, but it also kept all of the plugins I'd installed. Now it opens super fast again and everything works as it should.

Alternatively, creating a new profile does work if you're scared that doing the reset will affect some changes you've made, but as for myself the reset accomplished everything I needed it to do.

[GIS] QGIS stalls on startup

There is parameter named hiddenPaths in QGIS config file which usually located in C:\Users\*UserName*\AppData\Roaming\QGIS\QGIS3\profiles\default\QGIS\QGIS3.ini for Windows users. It can be used to hide network drives and printers from QGIS browser without having to disable this devices. Changing of this parameter solved my problem identical to yours problem described in this topic.

Example:

[browser]

hiddenPaths=Q:/, S:/, T:/, U:/, V:/

Best Answer

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[GIS] QGIS stalls on startup

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