https://bugs.kde.org/show_bug.cgi?id=413504
--- Comment #16 from andrei <akela1...@gmail.com> --- Dear Dmitry, thanks for your work~ I tried to do some tests, and here's the result: For all tests I used "Basic 1" brush, size 100, without smoothing. Picture size 4096x4096, 8 bit. Laptop with Nvidia GPU as before. External monitor 4K, 60 FPS. For checking the lag I used video on my phone, also 60 FPS. At first I tried to check with screen recorder, but realized that it affects Krita performance. That's why phone camera. 1. Windows, Krita 4.3, Intel GPU Outline lag: ~4 frames (65ms), brush lag: ~5 frames (83ms). 2. Windows, Krita 4.3, Nvidia Optimus Outline lag: ~8 frames (130ms), brush lag: ~11 frames (180ms). 3. Windows, Krita DK11, Intel GPU Outline lag: ~3 frames (50ms), brush lag: ~3 frames (50ms). 4. Windows, Krita DK14, Intel GPU Outline lag: ~3 frames (50ms), brush lag: ~3 frames (50ms). 5. Windows, Krita DK14, Nvidia Optimus Outline lag: ~4 frames (65ms), brush lag: ~5 frames (83ms). 6. Ubuntu, Krita 4.2.9, Only Nivida Outline lag: ~1 frame (17ms), brush lag: ~1 frame (17ms). Maybe even less. 7. Ubuntu, Krita 4.2.9, Intel GPU Outline lag: ~4 frames (65ms), brush lag: ~5 frames (83ms). So few notes on this. * Your fix is working. It improves the performance 25~50% depending on GPU used. * Only Intel GPU is better than Nvidia + Intel GPU. * Performance on pure Nvidia is still ~3 times higher. (case 6) -- You are receiving this mail because: You are watching all bug changes.
