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				MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 08:22
				by Kickman
				Hi, I got Avenue 6 - MadMapper and can't get one layer 4k without dropped frames. Tried downloading demo of Arena, problem persists. Also CPU load percentage at bottom never gets to 100%, when dropping frames it drops to 15-10%.
VDMX seems alright with this loads.
I use basemodel of MBP 2017 15".
DMA textures doesn't seem to help.
			 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 08:49
				by cosmowe
				Is your 4k content in dxv codec?
Greets
			 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 11:47
				by Kickman
				cosmowe wrote: Mon Sep 17, 2018 08:49
Is your 4k content in dxv codec?
Greets
 
Hi, yep all DXV3, content is 1080p/4k. Also I do get this lag at 1080p 5 layer (2 fx layers)
Looks kind of like this: 
 
Composition framerate is 60fps btw
 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 12:00
				by Zoltán
				Is this a macbook pro with dedicated graphics?
			 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 12:02
				by Kickman
				Here is the 4k with one clip at 60 fps (clip is 1080p30, but even then it fps drops after few seconds and macOS UI starts act jittery)

 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 12:02
				by Kickman
				Zoltán wrote: Mon Sep 17, 2018 12:00
Is this a macbook pro with dedicated graphics?
 
Yes, Radeon Pro 555
 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 12:35
				by cosmowe
				may be a silly question....
Is your physical output also set to 60Hz?
			 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 12:59
				by Kickman
				cosmowe wrote: Mon Sep 17, 2018 12:35
may be a silly question....
Is your physical output also set to 60Hz?
 
Yes, also I tested it both with and without second display :/
 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 14:10
				by Zoltán
				Kickman wrote: Mon Sep 17, 2018 12:02
Here is the 4k with one clip at 60 fps (clip is 1080p30, but even then it fps drops after few seconds and macOS UI starts act jittery)
 
Sounds quite like thermal throttle.
How does the CPU frequency and temps look like when this happens?
 
			
					
				Re: MacBook Pro 2017 15" Can't handle one layer 4k?!
				Posted: Mon Sep 17, 2018 18:15
				by Kickman
				Zoltán wrote: Mon Sep 17, 2018 14:10
Kickman wrote: Mon Sep 17, 2018 12:02
Here is the 4k with one clip at 60 fps (clip is 1080p30, but even then it fps drops after few seconds and macOS UI starts act jittery)
 
Sounds quite like thermal throttle.
How does the CPU frequency and temps look like when this happens?
 
Sounds like it is (was my first thought) but it isn't, CPU temps are in 60-70 range (by celsius) and lag starts immediately, terminal system utility called sysdiag (or smth like this) says it's power throttling, which doesn't make any sense, since I have 5-10 watts on CPU and 0.8GHz frequency, while lag starts (according to intel power gadget), even with fully loaded GPU there is enough power left to have CPU running at adequate frequencies (definitely not 0.8GHz). Doesn't matter if I have power supply connected or not, this doesn't happen while I render some C4D scenes or BM Fusion compositions.