Change number of worker threads to two from one. The printing module now takes 
up a thread of its own so you need to increase the worker threads. Worked for 
me. 


Jack 
----- Original Message -----

From: [email protected] 
To: "Darktable-users" <[email protected]> 
Sent: Thursday, January 14, 2016 11:05:04 AM 
Subject: [Darktable-users] Slow DT 2.0 

I have finally upgraded to DT2 and I find it slow, much slower than 
DT 1.6.9. Same system, no change. Most images are Canon CR2, but 30% 
are Fuji X-trans RAF. 

What used to be almost instantaneous now takes a few seconds. 
Exporting jpegs was under 2 seconds per jpeg when doing a group, now 
it's almost 10 seconds. 

Changing the exposure with the "bent line/right click" used to be 
instantaneous, now it takes a couple of seconds... 

Same with most other operations. 

DT2 is NOT slow as molasses, but it's so much slower when compared 
with DT 1.6.9. 

It was much slower, then I run "darktable-generate-cache" it became 
faster, then "darktable-generate-cache -m 7" with made it a little 
bit faster, but it's still so much slower than DT1.6.9. 

What can I do to improve...? 

OpenCL: 

[opencl_init] kernel loading time: 0.0158 
[opencl_init] OpenCL successfully initialized. 
[opencl_init] here are the internal numbers and names of OpenCL 
devices available to darktable: 
[opencl_init] 0 'GeForce GTX 650 Ti' 
[opencl_init] these are your device priorities: 
[opencl_init] image preview export 
thumbnail 
[opencl_init] 0 -1 0 0 
[opencl_init] FINALLY: opencl is AVAILABLE on this system. 

Memory: 12Gb 

free 
total used free shared buff/cache available 
Mem: 11991 1036 2825 37 8129 10828 
Swap: 5995 0 5995 

-- 
sknahT 

vyS 

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