P: "Synchronize Settings" very slow, using 10% CPU

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Contributor ,
Aug 07, 2018 Aug 07, 2018

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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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Adobe Employee ,
Aug 08, 2018 Aug 08, 2018

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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?
Rikk Flohr - Customer Advocacy: Adobe Photography Products

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Contributor ,
Aug 11, 2018 Aug 11, 2018

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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. 
RackMultipart2018081239614es48-e9e1cf3c-9d4f-4840-9e10-75614d3384c6-765217962.png

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New Here ,
Jun 11, 2019 Jun 11, 2019

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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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New Here ,
Jun 11, 2019 Jun 11, 2019

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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

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Adobe Employee ,
Jun 11, 2019 Jun 11, 2019

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Hi Sewi,

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

Thanks,
Chinoy

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Contributor ,
Jun 11, 2019 Jun 11, 2019

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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. 

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Adobe Employee ,
Jun 11, 2019 Jun 11, 2019

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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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LEGEND ,
Jun 11, 2019 Jun 11, 2019

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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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Adobe Employee ,
Jun 11, 2019 Jun 11, 2019

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

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New Here ,
Jul 27, 2019 Jul 27, 2019

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

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New Here ,
Aug 21, 2019 Aug 21, 2019

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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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Explorer ,
Aug 21, 2019 Aug 21, 2019

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I agree as well. It's very slow.

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Explorer ,
Aug 29, 2019 Aug 29, 2019

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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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LEGEND ,
Sep 12, 2019 Sep 12, 2019

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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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Contributor ,
Sep 12, 2019 Sep 12, 2019

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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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Adobe Employee ,
Sep 12, 2019 Sep 12, 2019

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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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LEGEND ,
Oct 26, 2019 Oct 26, 2019

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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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LEGEND ,
Oct 26, 2019 Oct 26, 2019

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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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Explorer ,
Oct 26, 2019 Oct 26, 2019

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

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Explorer ,
Oct 26, 2019 Oct 26, 2019

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

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New Here ,
Oct 28, 2019 Oct 28, 2019

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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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Explorer ,
Oct 28, 2019 Oct 28, 2019

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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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LEGEND ,
Oct 28, 2019 Oct 28, 2019

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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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Adobe Employee ,
Oct 28, 2019 Oct 28, 2019

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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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New Here ,
Oct 29, 2019 Oct 29, 2019

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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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