https://bugs.freedesktop.org/show_bug.cgi?id=82050

--- Comment #12 from Andy Furniss <adf.lists@gmail.com> ---
(In reply to comment #11)
> Created attachment 104549 [details]
> Only flush HDP cache for indirect buffers from userspace
> 
> Does this patch help?

No, I'm afraid that doesn't help either.

Valley is the same - pyrit only slightly different, probably within random
variation. 

I am testing with "bad" llvm so the numbers are all low.
As I recorded them here's a paste of pyrit good (kernel), head, patch 1 and
patch 2

On good -

Running benchmark (57982.3 PMKs/s)... / 

Computed 58917.21 PMKs/s total.
#1: 'OpenCL-Device 'AMD PITCAIRN'': 55101.4 PMKs/s (RTT 1.1)
#2: 'CPU-Core (SSE2)': 757.2 PMKs/s (RTT 2.9)
#3: 'CPU-Core (SSE2)': 756.0 PMKs/s (RTT 3.0)
#4: 'CPU-Core (SSE2)': 755.5 PMKs/s (RTT 2.8)
#5: 'Network-Clients': 0.0 PMKs/s (RTT 0.0)


On head

Running benchmark (50267.7 PMKs/s)... \ 

Computed 50096.30 PMKs/s total.
#1: 'OpenCL-Device 'AMD PITCAIRN'': 48501.1 PMKs/s (RTT 1.2)
#2: 'CPU-Core (SSE2)': 757.5 PMKs/s (RTT 2.9)
#3: 'CPU-Core (SSE2)': 757.1 PMKs/s (RTT 2.9)
#4: 'CPU-Core (SSE2)': 757.0 PMKs/s (RTT 2.9)
#5: 'Network-Clients': 0.0 PMKs/s (RTT 0.0)

Head + patch one

Running benchmark (50883.7 PMKs/s)... - 

Computed 51220.59 PMKs/s total.
#1: 'OpenCL-Device 'AMD PITCAIRN'': 48583.5 PMKs/s (RTT 1.2)
#2: 'CPU-Core (SSE2)': 756.5 PMKs/s (RTT 3.0)
#3: 'CPU-Core (SSE2)': 756.0 PMKs/s (RTT 2.9)
#4: 'CPU-Core (SSE2)': 754.2 PMKs/s (RTT 2.9)
#5: 'Network-Clients': 0.0 PMKs/s (RTT 0.0)

Head + patch two

Running benchmark (51348.9 PMKs/s)... | 

Computed 50781.53 PMKs/s total.
#1: 'OpenCL-Device 'AMD PITCAIRN'': 48676.9 PMKs/s (RTT 1.2)
#2: 'CPU-Core (SSE2)': 752.4 PMKs/s (RTT 2.9)
#3: 'CPU-Core (SSE2)': 755.4 PMKs/s (RTT 2.9)
#4: 'CPU-Core (SSE2)': 752.8 PMKs/s (RTT 2.9)
#5: 'Network-Clients': 0.0 PMKs/s (RTT 0.0)

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