Lightroom Classic: "Synchronize Settings" very slow, using 10% CPU

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  • Updated 1 week ago
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  • (Edited)
I have a 300-image (NEF) folder where I highlighted all images, turned on Auto Sync, then adjusted the sharpness, noise and applied lens corrections. LR Classic has taken about 15 minutes to process 50% of them. When inspecting the CPU, it's only being 10% utilized (out of 1600%)... basically the system is idle. -- 8700K@5GHz with 64GB 3GHz DDR4 ram.
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seanhoyt-dot-art

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Posted 1 year ago

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Rikk Flohr, Official Rep

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Sean,

Thanks for the detailed information. 

I am curious if you were to turn off Auto Sync and instead, copy and paste the settings from one image to 299 images if the operation is faster, slower or takes the same amount of time? 

Returning to your original workflow, if you don't apply Lens Corrections is the time affected? If you apply lens corrections but not noise/sharpness?
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seanhoyt-dot-art

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Here's my CPU utilization when I have a few hundred images selected, AUTO SYNC enabled, and choose to apply lens profile corrections. 

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Matthew Vandeputte

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Chiming in here, I have similar issues with very slow copy/pasting of settings or syncing of settings. I'm on a maxed out 2015 MBPro with the latest OS and the latest update of LR Classic.
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sewi

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This reply was created from a merged topic originally titled Lightroom Classic: Paste / sync settings is slow.



Hi there,

since version 8.x? the sync / paste settings function is very slow. I read about this issue here:

https://forums.adobe.com/thread/2608215
https://forums.adobe.com/message/11089395#11089395

I use always new catalogues, ' Optimize Catalog' does not help. Can anybody from Adobe check this issue please?

Thanks!

sewi
(Edited)
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Chinoy Gupta, Employee

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This reply was created from a merged topic originally titled Lightroom Classic: Paste / sync settings is slow (merging).

Hi Sewi,

Can you provide some details on what settings you are syncing? Also since which release are you seeing this slowness?

Thanks,
Chinoy

Note: This conversation was created from a reply on: Lightroom Classic: Paste / sync settings is slow.
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seanhoyt-dot-art

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Seems to be mostly the Enable Profile Corrections. I'm on 8.3 and checking the setting seems to be a single-threaded, serial operation. I just checked and it's 100% utilization of single thread. I just queued up 208 shots, enabled profile corrections and it definitely is faster now. Took about 60 seconds. Interestingly, unchecking the corrections takes the exact same time to disregard the lens calculations. (Nikon D750 14-bit NEF, 8700K CPU w/64GB RAM and catalog is on M.2 3500MB/s SSD)

Why isn't the set chopped up and thrown the the whole CPU like Export does now after years of people asking? I can't actually gang up 1/3+1/3+1/3 because after checking the Enable Profile Corrections to the first 1/3, the UI is locked (grayed) out. 
(Edited)
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Chinoy Gupta, Employee

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Thanks for the detailed explanation. We will investigate it further and get back to you.

Thanks,
Chinoy
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John R. Ellis, Champion

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Looks like there's a bug with Auto Sync and Lens Corrections > Enable Profile Corrections.  The workaround for this particular bug is to avoid Auto Sync and use Copy/Paste Develop Settings or "Sync..." instead.

Steps to reproduce:

1. Select 400 raws.

2. Edit one of the raws in Develop.

3. Make sure Auto Sync is disabled.

4. Check Enable Profile Corrections.

5. Click Sync, check just Lens Profile Corrections, and click Synchronize. Observe the progress bar -- it takes less than 3 seconds for the sync to complete on 400 photos, or about 145 photos/sec.

6. In Library, do Develop Settings > Reset.

7. Edit one of the raws.

8. Enable Auto Sync.

9. Check Enable Profile Corrections.  Observe that it takes a couple of minutes for the progress bar to indicate completion -- about 2.5 photos/sec.

Tested on LR 8.3.1 / Mac OS 10.14.5.
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Chinoy Gupta, Employee

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Thanks for more information John. We will keep this data in mind during our investigation.
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sewi

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Any News about the issue? Sorry, Adobe that is really frustrating. 
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Matthew Vandeputte

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Is this getting looked at? The latest update did not address this issue at all. Every single timelapse photographer I know is complaining about this. 
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Ray Majoran

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I agree as well. It's very slow.
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Sven Kovac

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This stupid software becomes more unusable every update. I'm on a brand new desktop system and lightroom runs the same speed as it does on my tablet which was not designed for editing. How can syncing settings take MINUTES. Ridiculous.
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Jeremiah Kane

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Paste settings are taking a sheet ton of time on 8.4 looking for other software application solutions atm.
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seanhoyt-dot-art

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Right? 8.4 is 50% the speed of precious version. Need to find out what’s up. New gpu code?.
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Chinoy Gupta, Employee

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Hi Jeremiah and Sean,

Can you elaborate on what settings are you pasting which is showing slowness.
   As previously mentioned in this thread, we are aware of slowness during AutoSync when Lens Correction is enabled. That issue we are able to reproduce and are investigating it. But your issue might be different as the slowdown is in Paste settings,

Thanks,
Chinoy
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Sven Kovac

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I never use Auto Sync.. I have legitimately stopped using lightroom because of this problem.
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Aileen Savage

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I'm having issues for the first time with this starting about a week ago. It's taking wayyyy too long and slowing down my editing dramatically. I hope this gets fixed soon! Because I can't afford this. 
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John R. Ellis, Champion

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Two workarounds for this bug:

- Use Sync rather than Auto Sync.  

- Use Copy/Paste Develop Settings rather than Auto Sync.
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Sven Kovac

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I never use Auto Sync.. I have legitimately stopped using lightroom because of this problem.
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Matthew Vandeputte

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Did you test this workaround? Because it doesn't work for me (and I assume many others). I've never used auto sync, I always use copy/paste dev settings and sometimes Sync. Can't believe this issue still hasn't been solved yet. I know a lot of people are looking at other software solutions because of how slow Adobe is to fix this issue. (and don't get me started on trying to import video files)
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Sven Kovac

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Like you I usually used Sync or Copy/Paste. I've moved completely to capture one, previews come up instantly, exports fly out of my machine.. tired of wasting time in lightroom, the simplest of things take forever. 
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John R. Ellis, Champion

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I just re-tested the bug recipe and workaround I posted 5 months ago: 
https://feedback.photoshop.com/photoshop_family/topics/-synchronize-settings-very-slow-using-10-cpu?...

I got roughly comparable results, with Sync of Enable Lens Profile Corrections to 458 photos taking less than 2 seconds, while Auto Sync taking 35 seconds. 

Tested on LR 8.4.1 / Mac OS 10.14.6 / Macbook Pro 15" (2019)
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Chinoy Gupta, Employee

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We have been able to reproduce the slowness with Auto-Sync and Lens Correction and we are actively investigating it.

But we don't have a reproducible case of slowness in Sync/Copy-Paste. It will be really helpful if someone who is facing this can elaborate on what settings are being Synced or Pasted. That will help us in diagnosing and fixing the issue.

Thanks,
Chinoy
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Jamie Geysbeek

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Same issues for me. I just rebuilt my PC (NVMe drives, 9700k, 48gb RAM, etc.), and upgraded from LR5 (which is drastically faster with develop processes), and I'm really disappointed. Things that would take under 10 seconds in LR5 (on my 8 year old computer) take 10 times longer or more. Most of what is being mentioned here is applies to my situation as well. I really hope Adobe addresses this.
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Rikk Flohr, Official Rep

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Lightroom Classic 9.0 was released earlier today and contained a fix for this issue. Please give it a try and confirm it is working for you after updating. Thanks for your patience.
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seanhoyt-dot-art

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Confirmed that it's stupid fast now. As fast as any other adjustment auto-sync. Thanks!
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seanhoyt-dot-art

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Could you also move the photo info overlay to not be an overlay, rather, in a strip above the image that can be turned on or off -- no cycle. I want to see both views combined in a strip. (add MP next to file res). I'd buy you a flight at Schilling... .
(Edited)
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Sven Kovac

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Just updated, I think its actually slower. 

Edit:

So the problem isnt resolved at all but I have a new one for you all, cancelled the sync (which actually prevents me from doing anything more in lightroom.. so close the software). Lightroom has been closed for 10 minutes. The sync options window pops up for me out of nowhere. Fantastic. This is no longer professional software. I'm sure its fine with the latest Macbook "Pro" at the Starbucks crowd but I'm done.
(Edited)
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Jamie Geysbeek

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Things seem to have improved, for me.
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Matthew Vandeputte

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Sadly the new update has now broken a key feature of the LRTimelapse plugin/integration, which is bad news for timelapse photographers across the world. I'm sure Gunther the dev behind LRTimelapse will start (or already has started) a new thread regarding that. Thank you though, for the update and for fixing the issue (haven't tested myself FYI). Matt (just got back from MAX, what a trip!)
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John R. Ellis, Champion

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I just retested the recipe I posted above in LR 9.0, and now Sync and Auto Sync of Enable Profile Corrections to 400 photos both go fast, about 2 seconds. 
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Sven Kovac

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I'm actually trying here... a folder of only 6 selects (outputted from Capture One).. wanted to do some crop options, B&W options.. whatever... Crop tool is completely non responsive.. I wish I was like everyone else and have my problem solved with an update, but it never is. The worst thing is, this computer is purely a work machine.. this is all i do on it.. i built it for this purpose.. 
It could definitely be something wrong with my system, however... Capture One works 100% and is super responsive...
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Rikk Flohr, Official Rep

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Not related to the solved thread where originally posted. Forking to new thread

Please reference the new conversation here: Lightroom Classic Crop Tool Non-responsive