Blender 2.93 slow start-up with addons enabled #87550

New Issue

Marius Eugen Mihai · 2021-04-16T06:30:36+02:00

2021-04-16 06:30:36 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.79

Blender Version
Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-04-15 17:14, hash: fa8d566c3b
Worked: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab

Short description of error
With many add-ons enabled, Blender 2.93 beta (and 3.00 alpha) takes a long time to start every time. In Blender 2.92, this was true only for the first run after a machine restart.

Exact steps for others to reproduce the error

Based on the default startup file (with some add-ons enabled).

I have 51 add-ons currently enabled in Blender. In Blender 2.92 and prior, the start-up process would take a while, understandably, but only after a restart of the current machine session (or after a long working session, in which the date would change, from what I've noticed). From what I could tell, this is because of the scripts being recompiled, which I guess takes place once every machine session. With no add-ons enabled, the start-up is fast even after a fresh reboot.
The first start-up takes about 12-14 seconds (checked with a stopwatch 5 times, after letting Windows sit for about a minute after a reboot), while all subsequent ones take about 1-2 seconds.

In Blender 2.93 beta (and 3.00 alpha), this process happens every time I restart Blender, not just after a reboot. Just like with 2.92, disabling all add-ons ensures a fast start time for Blender.

I'm not sure this is a bug or is a known consequence of a recent change, and the longer start-up time isn't unbearable on my machine, if I don't restart Blender often, but I thought I'd mention this, in case it's something unintended.

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.79 **Blender Version** Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-04-15 17:14, hash: `fa8d566c3b` Worked: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: `02948a2cab` **Short description of error** With many add-ons enabled, Blender 2.93 beta (and 3.00 alpha) takes a long time to start every time. In Blender 2.92, this was true only for the first run after a machine restart. **Exact steps for others to reproduce the error** Based on the default startup file (with some add-ons enabled). I have 51 add-ons currently enabled in Blender. In Blender 2.92 and prior, the start-up process would take a while, understandably, but only after a restart of the current machine session (or after a long working session, in which the date would change, from what I've noticed). From what I could tell, this is because of the scripts being recompiled, which I guess takes place once every machine session. With no add-ons enabled, the start-up is fast even after a fresh reboot. The first start-up takes about 12-14 seconds (checked with a stopwatch 5 times, after letting Windows sit for about a minute after a reboot), while all subsequent ones take about 1-2 seconds. In Blender 2.93 beta (and 3.00 alpha), this process happens every time I restart Blender, not just after a reboot. Just like with 2.92, disabling all add-ons ensures a fast start time for Blender. I'm not sure this is a bug or is a known consequence of a recent change, and the longer start-up time isn't unbearable on my machine, if I don't restart Blender often, but I thought I'd mention this, in case it's something unintended.

Marius Eugen Mihai commented

2021-04-16 06:30:36 +02:00

Added subscriber: @MariusEugenMihai

Omar Emara commented

2022-02-11 09:40:04 +01:00

Added subscriber: @OmarEmaraDev

Omar Emara commented

2022-02-11 09:40:04 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Omar Emara commented

2022-02-11 09:40:04 +01:00

Are any of those add-ons not shipped with Blender? If yes, can you disable all the add-ons that are not shipped with Blender and see if the slow startup time is still noticeable?
We will need to identify the add-on that causes that slow down, so you should test disable some of the add-ons, see if the slowdown is there, test disable another group of add-ons, see if the slowdown is there, until you find the add-on that causes the slow down.

Are any of those add-ons not shipped with Blender? If yes, can you disable all the add-ons that are not shipped with Blender and see if the slow startup time is still noticeable? We will need to identify the add-on that causes that slow down, so you should test disable some of the add-ons, see if the slowdown is there, test disable another group of add-ons, see if the slowdown is there, until you find the add-on that causes the slow down.

Marius Eugen Mihai commented

2022-02-13 23:40:53 +01:00

Hi Omar, thank you for your suggestions. After doing what you recommended, I narrowed the issue down to a third party add-on formerly called "Material Applier", now called "Atool".
In case anyone's interested, this is the blenderartists link: "https:*blenderartists.org/t/atool/1267349", and this is the github link: "https:*github.com/unwave/atool"

Part of its functionality is as an asset manager, so I believe this might be one of the causes of the slow start-up (perhaps scanning the library).

Since this is not an official add-on, I guess this issue should be closed. I haven't used the add-on in a while, but I might inform the developer about this.

Thank you for the help!

Hi Omar, thank you for your suggestions. After doing what you recommended, I narrowed the issue down to a third party add-on formerly called "Material Applier", now called "Atool". In case anyone's interested, this is the blenderartists link: "https:*blenderartists.org/t/atool/1267349", and this is the github link: "https:*github.com/unwave/atool" Part of its functionality is as an asset manager, so I believe this might be one of the causes of the slow start-up (perhaps scanning the library). Since this is not an official add-on, I guess this issue should be closed. I haven't used the add-on in a while, but I might inform the developer about this. Thank you for the help!

Omar Emara commented

2022-02-14 06:27:56 +01:00

Changed status from 'Needs User Info' to: 'Archived'

Omar Emara closed this issue

2022-02-14 06:27:56 +01:00

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Blender 2.93 slow start-up with addons enabled #87550