You might have a look at
https://darktable.gitlab.io/doc/en/overview_chapter.html#darktable_commandline_parameters
$ darktable -d perf
This is a sample output:10,301655 [dev] took 0,321 secs (0,568 CPU) to
load the image.
10,389857 [export] creating pixelpipe took 0,072 secs (0,135 CPU)
10,404834 [dev_pixelpipe] took 0,015 secs (0,024 CPU) initing base
buffer [export]
10,419164 [dev_pixelpipe] took 0,014 secs (0,047 CPU) processed `raw
black/white point' on CPU, blended on CPU [export]
10,437088 [dev_pixelpipe] took 0,018 secs (0,048 CPU) processed `white
balance' on CPU, blended on CPU [export]
10,451010 [dev_pixelpipe] took 0,014 secs (0,037 CPU) processed
`highlight reconstruction' on CPU, blended on CPU [export]
10,628594 [dev_pixelpipe] took 0,178 secs (0,543 CPU) processed
`demosaic' on CPU, blended on CPU [export]
33,014288 [dev_pixelpipe] took 22,386 secs (82,689 CPU) processed
`denoise (profiled)' on CPU, blended on CPU [export]
33,071194 [dev_pixelpipe] took 0,057 secs (0,159 CPU) processed `crop
and rotate' on CPU, blended on CPU [export]
33,128005 [dev_pixelpipe] took 0,057 secs (0,207 CPU) processed `input
color profile' on CPU, blended on CPU [export]
40,213757 [dev_pixelpipe] took 7,086 secs (25,217 CPU) processed
`contrast equalizer' on CPU with tiling, blended on CPU [export]
image colorspace transform Lab-->RGB took 0,058 secs (0,217 CPU)
[filmicrgb ]
40,708607 [dev_pixelpipe] took 0,495 secs (1,944 CPU) processed
`filmic rgb' on CPU, blended on CPU [export]
40,776768 [dev_pixelpipe] took 0,068 secs (0,265 CPU) processed
`velvia' on CPU, blended on CPU [export]
image colorspace transform RGB-->Lab took 0,079 secs (0,305 CPU)
[colorout ]
40,955426 [dev_pixelpipe] took 0,179 secs (0,681 CPU) processed
`output color profile' on CPU, blended on CPU [export]
41,115718 [dev_pixelpipe] took 0,160 secs (0,625 CPU) processed `scale
into final size' on CPU, blended on CPU [export]
41,115740 [dev_process_export] pixel pipeline processing took 30,726
secs (112,487 CPU)
[export_job] exported to
`/home/benutzer/Bildarchiv/Export/mail/20200112_N853534_02.jpg'
and yes - denoise profiled is by far the longest operation.
--
regards
Bernhard
https://www.bilddateien.de
Christian schrieb am 16.01.20 um 17:27:
Am 16.01.2020 um 14:45 schrieb Remco Viëtor:
No real reason to doubt his values
but...
On 16.01.20 11:09, Christian wrote:
Hi,
can you confirm that the profiled-denoise is very slow
with the default settings?
My measurement (exporting 1 image):
denoise off: 7.3 s
raw denoise: 8.5 s
denoise profiled default settings: 53 s (!)
denoise profiled luma preset: 13.8 s
OpenCL is disabled.
How were those times measured, and how often were the measurements
repeated?
If those are total times for the development, another process using
the disk
at the wrong moment can throw off the timing. And some system
processes do
write to disk (logging).
The difference between no denoise, raw denoise and luma preset are not
surprising, the time for profiled denoise at default settings is.
My computer is a several years old Intel Core i7 laptop with 16 GB Ram,
SSD Disk, 4 cores, OS=Win10.
I measured by hand starting from clicking on "export" until message "1
image has been exported" was displayed.
The measurements have been reproducable.
Chris
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