The project takes a long time to load on Android.

[po4esal]

What is the bug or the crash? What were your expectations and what actually happened?

For some reason, my work project loads quickly on iPhones (up to 10 seconds), but takes a long time on Android (over 40 seconds). These are flagship devices, so there are no hardware issues.
The project itself is not public, so I can't post it here.

Steps to reproduce the issue

I just open the project, and it takes a long time to load every time.

Version

4.2.6

Operating system name

Android

Operating system version

Android 16

Reinstall QField

• I have a fresh install of the latest QField version, but the problem persists.
• Problem can be reliably reproduced, doesn't happen randomly.
• Problem happens with all files and projects, not only some files or projects.

Additional context

No response

[nirvn]

@po4esal , we'd need more than this to look into this. One thing that'd help is to open to the message log panel and click on the "log runtime profiler", it'll give you a breakdown of time spent setting various parts of the project during load:

[po4esal]

Reading project file: 34.817

[po4esal]

Startup

- Create query logger: 0

- Setup coordinate reference system registry: 0

- Create connection registry: 0

- Create project storage registry: 0

- Create layer metadata provider registry: 0

- Create font manager: 0

- Setup task manager: 0

- Setup action scope registry: 0

- Setup numeric formats: 0.002

- Setup field formats: 0

- Setup SVG cache: 0

- Setup image cache: 0

- Setup source cache: 0

- Setup color scheme registry: 0

- Setup paint effect: 0

- Setup symbol layer registry: 0

- Recent style handler: 0

- Setup callout registry: 0

- Setup renderer registry: 0

- Setup raster renderer registry: 0

- Setup point cloud renderer registry: 0

- Setup tiled scene renderer registry: 0

- Setup GPS registry: 0

- Setup GPSBabel format registry: 0

- Setup plugin layer registry: 0

- Setup Processing registry: 0

- Setup layout item registry: 0

- Setup annotation registry: 0

- Setup application theme registry: 0

- Setup annotation item registry: 0

- Setup labeling engine rule registry: 0

- Setup sensor registry: 0

- Setup plot registry: 0

- Setup 3D symbol registry: 0

- Setup 3D renderer registry: 0

- Setup external storage registry: 0

- Setup profile source registry: 0

- Setup network content cache: 0

- Setup layout check registry: 0

- Setup classification registry: 0

- Setup bookmark manager: 0

- Setup tile download manager: 0

- Setup scalebar registry: 0

- Load user fonts: 0.014

- Load color schemes: 0

- Load bookmarks: 0

- Load default style database: 0.001

- Initialize data providers: 0.028

-- Create memory layer provider: 0

-- Create mesh memory layer provider: 0

-- Create GDAL provider: 0

-- Create OGR provider: 0

-- Create OGC SensorThings API provider: 0

-- Create vector tile providers: 0

-- Create EPT point cloud provider: 0

-- Create COPC point cloud provider: 0

-- Create Virtual point cloud provider: 0

-- Create tiled scene providers: 0

-- Initialize OAPIF: 0

-- Initialize WFS: 0

-- Initialize arcgisfeatureserver: 0

-- Initialize arcgismapserver: 0

-- Initialize arcgisvectortileservice: 0

-- Initialize cesiumtiles: 0

-- Initialize copc: 0

-- Initialize delimitedtext: 0

-- Initialize ept: 0

-- Initialize esrii3s: 0

-- Initialize gdal: 0

-- Initialize mbtilesvectortiles: 0

-- Initialize memory: 0

-- Initialize mesh_memory: 0

-- Initialize ogr: 0

-- Initialize postgres: 0

-- Initialize quantizedmesh: 0

-- Initialize sensorthings: 0

-- Initialize spatialite: 0

-- Initialize tiledscene: 0

-- Initialize vectortile: 0

-- Initialize virtual: 0

-- Initialize vpc: 0

-- Initialize vtpkvectortiles: 0

-- Initialize wcs: 0

-- Initialize wms: 0

-- Initialize xyzvectortiles: 0

- Initialize authorities: 0.015

- Initializing authentication manager: 0.053

-- Initialize SSL cache: 0.036

-- Initialize SSL cache: 0.006

- QGIS native provider: 0.009

- Initialize ellipsoids: 0.016

- Initialize default style database: 0

-- Load symbols: 0

-- Load color ramps: 0

-- Load text formats: 0

-- Load label settings: 0

-- Load legend patch shapes: 0

-- Load 3D symbols shapes: 0

- Initialize PROJ operations: 0

- Load symbols: 0

- Load color ramps: 0

- Load text formats: 0

- Load label settings: 0

- Load legend patch shapes: 0

- Load 3D symbols shapes: 0

- Load symbols: 0

- Load color ramps: 0

- Load text formats: 0

- Load label settings: 0

- Load legend patch shapes: 0

- Load 3D symbols shapes: 0

Project Load

- Setting up translations: 0

- Reading project file: 34.817

- Updating project file: 0.002

- Creating auxiliary storage: 0.04

- Reading properties: 0.108

- Loading layer tree: 0.002

- Reading map layers: 1.34

-- Sorting layers: 0

-- Load providers in parallel: 0

-- 2gis Map: 0.005

--- Create layer: 0.001

--- Load layer source: 0.004

---- Create wms provider: 0.001

----- Setup tile capabilities: 0.001

----- Calculate extent: 0

--- Add layer to project: 0

-- 51КПР: 0.058

--- Create layer: 0.001

--- Load layer source: 0.056

---- Create ogr provider: 0.05

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 51: 0.007

--- Create layer: 0

--- Load layer source: 0.007

---- Create ogr provider: 0.005

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 545: 0.006

--- Create layer: 0

--- Load layer source: 0.006

---- Create ogr provider: 0.004

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 55: 0.006

--- Create layer: 0

--- Load layer source: 0.006

---- Create ogr provider: 0.004

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 55КПР: 0.006

--- Create layer: 0

--- Load layer source: 0.006

---- Create ogr provider: 0.004

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 57: 0.403

--- Create layer: 0

--- Load layer source: 0.403

---- Create ogr provider: 0.101

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 70: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.004

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 70КПР: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.004

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 72: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.003

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 77КПР: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.004

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 77: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.003

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 81: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.003

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- 81КПР: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.003

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- Google Hybrid: 0

--- Create layer: 0

--- Load layer source: 0

---- Create wms provider: 0

----- Setup tile capabilities: 0

----- Calculate extent: 0

--- Add layer to project: 0

-- OSM Standard: 0

--- Create layer: 0

--- Load layer source: 0

---- Create wms provider: 0

----- Setup tile capabilities: 0

----- Calculate extent: 0

--- Add layer to project: 0

-- ОКУ: 0.008

--- Create layer: 0

--- Load layer source: 0.007

---- Create ogr provider: 0.003

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

-- ТК: 0.005

--- Create layer: 0

--- Load layer source: 0.005

---- Create ogr provider: 0.003

---- Read layer metadata: 0

---- Read layer fields: 0

--- Add layer to project: 0

- Loading embedded layers: 0

- Resolving layer references: 0

- Resolving references: 0.004

- Storing original layer properties: 0.011

- Loading map themes: 0

- Loading label settings: 0

- Loading annotations: 0.112

- Loading layouts: 0.062

-- Loading QGIS 2.x compositions: 0.031

-- Creating layouts: 0

-- Creating reports: 0.031

- Loading elevation profiles: 0

-- Creating elevation profiles: 0

- Loading selective masking source sets: 0

-- Creating selective masking source sets: 0

- Loading bookmarks: 0.031

- Loading sensors: 0.033

- Loading snapping settings: 0.002

- Loading view settings: 0

- Loading style properties: 0

- Loading temporal settings: 0

- Loading elevation properties: 0

- Loading display settings: 0

- Loading GPS settings: 0

- Updating variables: 0

- Updating CRS: 0

- Reading external settings: 0.111

- Updating interface: 0.006

[nirvn]

@po4esal , interesting. This is the code that runs for this specific profiled block (https://github.com/qgis/QGIS/blob/ab5325f0c677643f2e1f521faac2bbeac7aff375/src/core/project/qgsproject.cpp#L2132-L2176).

How large is your project file(.qgs/.qgz)?

[po4esal]

The QGIS project (.qgz) on my computer is 1.02 MB in size. The data is 7.3 MB (.gpkg).
After exporting to QField, the project (.qgz) for some reason increases in size to 17.2 MB. The data remains the same size.

[nirvn]

@po4esal , OK, I don't think we'll be able to go further without a sample project. If you can share privately, write me at mathieu@opengis.ch .