1.0 lags considerably on zoom and scroll/pan, Mac Catalina
Steps to reproduce:
- open Inkscape
- import image or draw a simple rectangle
- zoom in
- try to scroll or pan
What happened?
- Slow to update, particularly on scroll
- Substantial pause before rest of screen loads.
- Performance is worse as you scroll (25% zoom is still responsive, 200% has 1-2 second delay before screen loads)
And things that are normal:
- Menus are still normal, so issue with the canvas rendering
- In latest builds, hiding toolbars/rulers/status bars doesn't help
- Doesn't affect a blank document
Informally this is as bad as a 2-3 fps frame rate.
What should have happened?
- I never had this issue with the old 32 bit + xQuartz system, it was smooth and didnt slow down at all. Not sure if this is a Mac or an Inkscape issue.
Profiling
And also, taken from #288 (closed), under Inkscape 1.0alpha2
instruments suggests that image conversion is taking most of the time. Relevant callstack (open expander)
2.80 s 26.5% 0 s SPCanvas::handle_draw(_GtkWidget*, _cairo*) 2.80 s 26.5% 0 s cairo_paint 2.80 s 26.5% 0 s _cairo_default_context_paint 2.80 s 26.5% 0 s _cairo_gstate_paint 2.80 s 26.5% 0 s _cairo_surface_paint 2.80 s 26.5% 0 s _cairo_quartz_surface_paint 2.80 s 26.5% 0 s _cairo_compositor_paint 2.80 s 26.5% 0 s _cairo_quartz_cg_paint 2.79 s 26.5% 0 s _cairo_quartz_draw_source 2.79 s 26.5% 0 s CGContextDrawImage 2.79 s 26.5% 0 s CGContextDrawImageWithOptions 2.79 s 26.5% 0 s CGContextDelegateDrawImage 2.79 s 26.5% 0 s backing_store_DrawImage.llvm.776B8D61 2.79 s 26.5% 0 s backing_store_delegate 2.79 s 26.5% 0 s __backing_store_DrawImage_block_invoke 2.79 s 26.5% 0 s CGContextDelegateDrawImage 2.79 s 26.5% 0 s ripc_DrawImage 2.55 s 24.1% 0 s ripc_AcquireRIPImageData 2.55 s 24.1% 0 s RIPImageCacheGetRetained 2.52 s 23.8% 0 s RIPImageDataInitializeShared 2.52 s 23.8% 0 s CGSImageDataLock 2.52 s 23.8% 0 s img_data_lock 2.51 s 23.8% 1.00 ms img_alphamerge_read 1.84 s 17.4% 0 s img_colormatch_read 1.44 s 13.6% 1.00 ms img_decode_read 1.30 s 12.2% 9.00 ms decode_data 1.29 s 12.2% 1.29 s decode_byte_8bpc_3a 140.00 ms 1.3% 140.00 ms decode_swap
Workarounds (varied success):
- Open in Low Resolution makes it usable (see #1614 (comment 360963802))
- Inkscape might have to disable High resolution from Info.plist per #1614 (comment 360963805)
- In monitor settings, set color profile "sRGB" instead of the default (see #1614 (comment 360963825))
- Disabling statusbars/rulers (not working in current versions apparently)
Note: related issue for GIMP: https://gitlab.gnome.org/GNOME/gimp/-/issues/4130
Versions
- 1.0 on macOS Catalina 10.15.2 (OP)
- 1.0beta2 on macOS 10.14.6, 13" early 2015 macbook (8GB, Intel Iris Graphics 6100 1536 MB) (#1614 (comment 360963718))
- 1.1-dev (ddb55ca9, 2020-02-02) on Catalina 10.15.3, Mac Spec: 2014, 2.7GHz Quad-Core i5, 8GB 1600 MHz RAM (#1614 (comment 360963723))
- More tests on later versions
- 1.0rc1 (09960d6f, 2020-04-09) on macOS 10.15.4 (19E287 MBP 16", 2019, 2.6 GHz 6-Core Intel Core i7, 32 GB DDR4 RAM) (see #1614 (comment 360963799))
Edited by Nathan Lee