Re: [darktable-user] DT on iMac with Mojave: no openCL

[Volker Lenhardt]

Many thanks to all of you for your help. Nevertheless my performance 
problems persist. To set opencl_use_pinned_memory=TRUE yields no 
perceivable improvement.

Before I reinstall DT I'll try and install a mouse to see if there are 
some differences in behavior. If I need more help I'll open a new thread.

Volker

Am 03.12.18 um 18:48 schrieb Ulrich Pegelow:
I don't see anything specifically broken here. Let's take for example 
the snippet from the quote below.

Time spent in OpenCL kernels including memory I/O is 0.055 seconds. 
Total time in pixelpipe is 0.123 seconds. There is a bit of overhead 
here but that's not dramatical. You may try to set 
opencl_use_pinned_memory=TRUE which might improve this a bit.

Overall the time spent in this sections is between timestamps 130.658s 
and 130,781 which matches the figures above.

I'd say if you are losing performance it's probably not in the pixelpipe 
and likely not OpenCL related. That also fits to your observation that 
you don't see a difference with/without OpenCL.

Ulrich


Am 03.12.18 um 18:20 schrieb Volker Lenhardt:
130,658562 [pixelpipe_process] [full] using device 0
130,660026 [dev_pixelpipe] took 0,001 secs (0,002 CPU) initing base 
buffer [full]
130,680802 [dev_pixelpipe] took 0,021 secs (0,020 CPU) processed 
`Raw-Schwarz-/Weißpunkt' on GPU, blended on GPU [full]
130,682650 [dev_pixelpipe] took 0,002 secs (0,002 CPU) processed 
`Weißabgleich' on GPU, blended on GPU [full]
130,684399 [dev_pixelpipe] took 0,002 secs (0,001 CPU) processed 
`Spitzlicht-Rekonstruktion' on GPU, blended on GPU [full]
130,700017 [dev_pixelpipe] took 0,016 secs (0,013 CPU) processed 
`Entrastern' on GPU, blended on GPU [full]
130,704482 [dev_pixelpipe] took 0,004 secs (0,004 CPU) processed 
`Basiskurve' on GPU, blended on GPU [full]
130,708880 [dev_pixelpipe] took 0,004 secs (0,004 CPU) processed 
`Eingabefarbprofil' on GPU, blended on GPU [full]
130,717590 [dev_pixelpipe] took 0,009 secs (0,007 CPU) processed 
`Schärfen' on GPU, blended on GPU [full]
130,724571 [dev_pixelpipe] took 0,007 secs (0,006 CPU) processed 
`Ausgabefarbprofil' on GPU, blended on GPU [full]
130,781679 [dev_pixelpipe] took 0,057 secs (0,078 CPU) processed 
`Gamma' on CPU, blended on CPU [full]
130,781716 [opencl_profiling] profiling device 0 ('AMD Radeon Pro 570 
Compute Engine'):
130,781720 [opencl_profiling] spent  0,0005 seconds in [Write Image 
(from host to device)]
130,781723 [opencl_profiling] spent  0,0001 seconds in rawprepare_1f
130,781740 [opencl_profiling] spent  0,0002 seconds in whitebalance_1f
130,781742 [opencl_profiling] spent  0,0002 seconds in highlights_1f_clip
130,781744 [opencl_profiling] spent  0,0004 seconds in ppg_demosaic_green
130,781746 [opencl_profiling] spent  0,0005 seconds in 
ppg_demosaic_redblue
130,781749 [opencl_profiling] spent  0,0002 seconds in border_interpolate
130,781764 [opencl_profiling] spent  0,0120 seconds in 
interpolation_resample
130,781766 [opencl_profiling] spent  0,0022 seconds in basecurve_lut
130,781768 [opencl_profiling] spent  0,0017 seconds in colorin_unbound
130,781770 [opencl_profiling] spent  0,0019 seconds in sharpen_hblur
130,781772 [opencl_profiling] spent  0,0022 seconds in sharpen_vblur
130,781774 [opencl_profiling] spent  0,0025 seconds in sharpen_mix
130,781777 [opencl_profiling] spent  0,0036 seconds in colorout
130,781779 [opencl_profiling] spent  0,0270 seconds in [Read Image 
(from device to host)]
130,781781 [opencl_profiling] spent  0,0550 seconds totally in command 
queue (with 0 events missing)
130,781789 [dev_process_image] pixel pipeline processing took 0,123 
secs (0,137 CPU)

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