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iOS GPU Counter indices description
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iOS GPU Counter indices description

Updated on: 2022-11-10 14:30

GPU General Counter
a) VertexOccupancy:Measures how many vertex shader simdgroups are concurrently running in the GPU relative to the GPU’s maximum number of concurrently running simdgroups.

b) FragmentOccupancy:Measures how many fragment shader simdgroups are concurrently running in the GPU relative to the GPU’s maximum number of concurrently running simdgroups.

c) ComputeOccupancy:Measures how many compute shader simdgroups are concurrently running in the GPU relative to the GPU’s maximum number of concurrently running simdgroups.

GPU Memory Counter
a) BufferReadLimiter:Measures the time during which buffer loads are attempted to execute as a percentage of peak buffer load performance.

b) TextureSampleLimiter:Measures the time during which texture samples are attempted to execute as a percentage of peak texture sample performance.

c) GpuReadBandwidth:Measures how much memory, in gigabytes per second, are read by the GPU from a memory external to the GPU (potentially main memory).

d) GpuWriteBandwidth:Measures how much memory, in gigabytes per second, are written by the GPU to a memory external to the GPU (potentially main memory).

GPU Shader Counter
a) Alulimiter:Measures the time during which ALU work is attempted to execute as a percentage of peak ALU performance.