iOS project not using GPU?

Unity Engine
,
1

Hello,

We have a strange issue. Unity’s Profiler and the XCODE profiler are reporting 0 usage in GPU for our project. Under Unity’s Application Profiler, we see mass GPU based tasks taking place on the CPU.

Under the Unity / Xcode Internal Profiler we see:
cpu-ogles-drv> min: 0.0 max: 0.0 avg: 0.0

Has anyone else experienced this or have an idea what’s up? We’ve tried building out in all formats (gl 2, gl 3 and metal). I’m sure we are doing something dumb or missing a setting somewhere. We are using 5.0.1p3

Thanks <3

2

We’ve tested both on iPad Mini Gen1 and iPhone 6 - both reporting 0 GPU use… We created a brand new project as a test with some Cubes and a Particle System.

Here’s the full Dump from Console.

3

XCODE profiler are reporting 0 usage in GPU for our project
Initializing Metal device caps

in xcode go to product->scheme->edit scheme
change GPU frame capture to be metal (or gles if you run on no-metal device or force gles in player settings)

4

@Alexey Thanks for the quick reply! I’ve enabled the Metal Device the GPU Frame Capture. However that doesn’t seem to solve the issue. Here’s the dump from that test:

5

now you are looking into wrong place - do you want to check GPU usage? look in xcode itself - it will show graph when you select “debug” tab

6

I think I saw Xcode showing the GPU usage as 0 when the value was off the scale - i.e. the performance was so terrible it was beyond any reasonable limits
(I might not remember correctly)

7

Thanks guys - we will continue to look into this. Just so I’m aware - even if we force project ot use Open GLES 2.0, we should still expect to see : cpu-ogles-drv> min: 0.0 max: 0.0 avg: 0.0 on the internal profiler ?

8

I’ve got the same problem, using Unity 4.6.5. The FPS panel of the xcode profiler has 0 FPS and empty spaces where there used to be graphs of GPU usage.

2113709--138696--xcode profiler.png
2113709--138696--xcode profiler.png1112×271 26.9 KB

9

>>cpu-ogles-drv> min: 0.0 max: 0.0 avg: 0.0 on the internal profiler ?
i think this is no longer updated from inside unity itself. Why we didnt kill it? i dunno honestly 8)

The FPS panel of the xcode profiler has 0 FPS

  1. Make sure you picked appropriate api in product->scheme->edit scheme->Gpu Frame Capture
  2. we noticed some issues with xcode tools VS the way we handle display link.
    Check UnityAppController+Rendering.mm in trampoline, it has this comment:
// NB: if you intend yo use xcode GPU report (FPS category in Debug Session) you want to set ENABLE_DISPATCH to 0
// otherwise xcode gets confused and think CPU time was 0
10

It seems the iPhone 6 or newer use metal graphic api. GPU Report will not work If the GPU Frame Capture set to “Automatically Enabled”.
According the info here. If I changed the GPU Frame Capture to “Metal”, it works fine now with my iPhone 6.
ScreenShot

2454749--168680--2 set GPU capture.png
2454749--168680--2 set GPU capture.png860×436 50.5 KB

11

It seems not worked in Unity after I choose the “Metal” in Xcode.Does GPU Report work only in Xcode?

12

I believe the setting of the Unity is not related to GPU Report setting, so yes, it should be set in Xcode.