RT is running slow on my new iMac

Software RawTherapee
8

Ok, as I’m not on Mac I’m out of ideas now. Maybe @HIRAM can help?

9

It isn’t in ~/Library/Application Support/RawTherapee/config/?

10

No. In /Library/Application Support/ there is no “RawTherapee”-folder

11

Your user’s Library, not the system Library. /Volumes/Users/YourName/Library is the path

12

AdjusterMinDelay=100
AdjusterMaxDelay=200

13

Have you had luck with the latest dev build:

14

I tested it now. I can’t tell any difference wrt. my problem. I did, however, discover that one needs to install the program by dragging it to the “Application” folder (having no experience with Macs I didn’t know this). It might be my imagination, but it feels a bit smoother after, though still not as smooth as with my old system.

15

Hi,

After some more testing, I have concluded that there is a clear difference in the level of smoothness when I move sliders at full screen and fit the zoom, and when I zoom out as much as possible. It is still clearly sluggish when it is zoomed out but less so than at maximized view.

16

@Borge_Rokseth
http://rawpedia.rawtherapee.com/Getting_Started
http://rawpedia.rawtherapee.com/General_Comments_About_Some_Toolbox_Widgets#The_Preview_Area
http://rawpedia.rawtherapee.com/The_Image_Editor_Tab#The_Preview_Panel
Make sure you’ve read all three.

17

Thanks. Interesting reading, though it did not solve my problem.

I upgraded the Mac to a i7 with 16GB RAM and a faster HD. That did not help either. Still, the sliders still seems sluggish, the processing window updates less smoothly than it did for the old linux-machine, and even stuff like the indication/highlighting of buttons when I hoover the mouse over them lags just enough to be irritating. Are there really no-one else who have had similar problems?

18

We may have experienced similar things, but perhaps haven’t yet classified them as problems. Different things about the interface irritate me. I just updated from i3 to i5 with a 20% gain in freq. it’s a 42 Watt iMac and I’ve maxed out the performance and ram. Sluggish is not a term that pops into mind when using rt. One thing I’m wondering about is if the program still acts slow for you after reinstalling the os.

19

I could try, though I am not sure why we should expect it to help. After all it is brand new. And when I said that I updated the Mac, I really meant that I replaced it with a new one. As such, I have experienced the same problems on two fresh installations two different pieces of hardware.

20

It would help if you uploaded a screencast (video) so we can see what you mean.

21

Hi,

here is a video showing some general sluggishness.https://pixls-discuss.s3.dualstack.us-east-1.amazonaws.com/original/3X/e/c/ecfc842e8d7f203a67020eda916d70d4268fec85.mp4

22

where?

23

Sorry, I now updated the post to actually include the video :slight_smile:

24

Please test again using RT 5.5 from here

25

Same trouble it seems: https://pixls-discuss.s3.dualstack.us-east-1.amazonaws.com/original/3X/7/3/7366e8e2e49d9c8e286b1db87b7f309758a40012.mp4

26

Is this an iMac with 4K or 5K display?

27

I’ve got the following specs:
Screen: Retina 4K, 21.5-inch
Processor: 3,6 GHz Intel Core i7
Memory: 16 GB 2400 MHz DDR4