Skip to main content
Adobe Photoshop Family

427 Messages

 • 

7.7K Points

Fri, May 1, 2015 2:42 AM

Lightroom 6 / CC2015: Very slow UI response with background export(s) running

Lightroom 6 / CC2015s UI reaction is very slow / sluggish when a background export is running. When three exports are running, the development module becomes virtually unusable.

In Lightroom 4 or 5 it was no problem at all to start up to three or four background exports - of course the UI, especially the development module, was considerably slower than normal, but definitely completely usable.

LR Version: CC 2015.0.1 (with 6.0.1 update), on Window 7 64. Processor is an i7-2600, there is 16 GB RAM. RAM does not seem to be exhausted, LR6 uses about 3...4 GB with 3 parallel exports.

Edit: It makes no difference whether GPU usage is turned on or off.

Responses

14 Messages

 • 

200 Points

5 years ago

at the moment the new version is better then the old.
last couple of days i have had LR & PS & several pages of chrome open and open element(website making program) all open at the same time and have had no problems.

1 Message

 • 

60 Points

4 years ago

I have the same problem. absurd crashes. someone found the solution?
2TB SSD RAID 0

Adobe Administrator

 • 

14.9K Messages

 • 

286.1K Points

What does the event viewer say the faulting module is? Is Lightroom up to date? https://helpx.adobe.com/lightroom/kb/keeping-lightroom-up-to-date.html

Sr. Product Manager, Adobe Digital Imaging

8 Messages

 • 

202 Points

4 years ago

I have found more that a couple times now when Lightroom 6 2015.5 slows down, I can do a system restore to an earlier date and it speeds up again. Can not explain why but at times I can just click on a thumbnail in develop module and start counting and get up to 3 before it opens. That in turn also slows down slider response too. Do a restore and I'm back to flying speed again. I'm about ready to go back to old lightroom without cc and old cs5 as I had none of this before cc. 

62 Messages

 • 

954 Points

i have tried everything. bought a new ssd and installed nothing other than lr cc and it is slow as hell. I have a performance machine that should eat this thing up and it is so slow! killing me! taken so much time waiting for this darn thing to work and looking for workarounds, please adobe help out!!!

Champion

 • 

5.8K Messages

 • 

102.5K Points

You're going to need to be very specific about exactly what is slow.

Also tell us how many smart collections you have and how big they are?

178 Messages

 • 

3.7K Points

@victoria: are Smart Collections slowing down LR? I have 29 smart collections myself and about to start using many more of them, BUT if LR slows down because of them I have to rethink.

Champion

 • 

5.8K Messages

 • 

102.5K Points

I'm not entirely sure, but it's a theory I'm investigating.  I've been testing a 1.3 million photo catalog (which is admittedly far bigger than most!) and they are slowing down metadata updates in that catalog, but it's a pretty unusual situation.  Just one to rule out though.  Easy way to test is to close the Collections panel and restart LR - that way they don't start counting, which seems to be the slow down.

62 Messages

 • 

954 Points

Hey. When I click to move to next photo it takes about 5sec to move and tender preview. When in develop module and I hit g to move to library can take forever. When in develop module hitting r to crop or rotate takes 10 to 15 SEC To Be ready. Forget to try while export is working. No smart libraries. Small catalog. I have tried everything incl. A new ssd, uninstalling, everything.

Employee

 • 

1.7K Messages

 • 

32.4K Points

4 years ago

@Sigurdur Thanks. Clearly something is not quite right. Try:
1) Turn off the use of the second monitor in Lightroom to see if it helps;
2) Try disable the 3rd party Lightroom plug-ins from Lightroom File>Plug-in Manager...

When the slow down happens, what is the memory usage of Lightroom according to the Activity Monitor? 

Principal Scientist, Adobe Lightroom

Employee

 • 

1.7K Messages

 • 

32.4K Points

4 years ago

Since we're shooting in the dark here, I'd like to collect some log files from you to get some clue. Please follow the following instructions:

A) Locate the LR configuration folder
    1) Launch LR
    2) "Edit>Preferences..."
    3) Select Preset tab
    4) Click "Show Lightroom Presets folder"
    5) A Finder window will open with a folder like "/Users/your-login-account/Library/Application Support/Adobe/Lightroom/" selected. This is the LR configuration folder.
B) Copy the config.lua file into the Lightroom configuration folder. This config.lua file contains code that LR will read at startup to enable logging.
C) Restart LR. This will ensure LR reads the config.lua at start up.
D) Do the steps to reproduce your performance issue.
E) Quit LR
F) Go to your Documents folder (/Users/your-login-account/Documents/). You should see a bunch of recently created *.log files. Zip them and upload it to some online location (CC sync folder or Dropbox) and share the link with me at sichen at adobe dot com.

G) Disable logging by moving, deleting, or renaming the config.lua file. If you skip this step, LR will continue to append to these files and they will grow unbounded. So please remember to get rid of config.lua after the test.

Principal Scientist, Adobe Lightroom

62 Messages

 • 

954 Points

4 years ago

Hey,
the second monitor tab is off and I never use it 
the only 3r party plug in active is the export to zenfolio. on the last test I did where I installed it all clean on the ssd there were no addons and the only thing i did out of the normal clean install from cc was turn off face, location and mobile cc sync folder,

62 Messages

 • 

954 Points

thanks,
I sent you the config test folder.

Employee

 • 

1.7K Messages

 • 

32.4K Points

Please don't send the zip file as attachment via the email. Our corporate email system will block such type of files. Please send a shared link via dropbox or Adobe CC Sync. Thanks.

Principal Scientist, Adobe Lightroom

Employee

 • 

1.7K Messages

 • 

32.4K Points

4 years ago

From the screen cap, I see that you have a network drive \\DISKSTATION\, is that a NFS drive? What happens if you disconnect it temporarily, does it make a difference?

Principal Scientist, Adobe Lightroom

62 Messages

 • 

954 Points

hey,
that is a nfs it is for storage only i never work of that drive.
if I need something from there I move it the c:
I have tried to turn it off and to disconnect it from the network in case it was some kind of wired index issue.
on the last catalog install I used for part of the test I sent you it was not installed to that catalog. 
yea im sorry, you  did say dropbox and i e-mailed it :) I shared a dropbox with you :)
i don't have cc shared turned on and have not dared to even try to use it for fear of even more slow down.

62 Messages

 • 

954 Points

this is the tool panel of the last catalog used in the test. no sencondary apps, second screen off, no diskstation connected, no sharing, faces or locations. 
no

55 Messages

 • 

1.6K Points

4 years ago

I'm glad this is getting more attention. I've dumped LR CC Standalone  in favour of 5.7 as CC is unusably slow, regardless of whether an export is running or not.

It actually runs faster with GPU Accel turned off (hah!) but even then it's useless. 3-5 seconds to switch between images in the develop module, horrendous memory leakage (Have to reload the application every 30-50 minutes) and just overall sluggishness.

Intel 4790K @ 4ghz, 32gb RAM, nVidia 970 GTX and SSD's all around,  no network drives.

Logs here: https://1drv.ms/u/s!AnWpr2dszNA_gtNvQKqY41d30blBGQ

Employee

 • 

1.7K Messages

 • 

32.4K Points

@Denyer Got the log. I will need to study it. BTW, Lr 6.6 introduced an optimization that will make walking photos in develop feel faster. Victoria's blog http://www.lightroomqueen.com/whats-new-in-lightroom-cc-2015-6-and-lightroom-6-6/ has a little bit more info.

Principal Scientist, Adobe Lightroom

62 Messages

 • 

954 Points

thanks for chiming in! sorry about you having issues, I hope there will be a solution! :)
yea my machine eats doom4 at 4k with no lag no refresh issues while watching soccer on the second monitor, not a computer hardware issue, might be some config thing!

Employee

 • 

1.7K Messages

 • 

32.4K Points

@Sigurdur Could you post the link to your log files here as @Denyer did? The spam filter will do unexpected things :-).

Principal Scientist, Adobe Lightroom

62 Messages

 • 

954 Points

I am running the latest updated version of lr.

2 Messages

4 years ago

Hello to all of you,

One week ago I bought new MacBook 12" Retina (1,2 Ghz m5, 8GB RAM, 512 SSD) and today i finally try some Time lapse editing in Lightroom version: CC 2015.6 [ 1078672 ]

Generally, everything is ok, but the export process is painfully slow. My 495 pictures LR is exporting almost two hours. On my iMac 27" (i5, 32GB RAM, 1TB 7200 HDD) 600 photos are exported in 20 minutes or less. I know that in iMac there is 32GB RAM according to 8GB in MacBook, but I think that this kind of slowness isn't norml. On iMac i have previous version of Lightroom. 

I tried check/uncheck "Use Graphic Processor" option, but everything is same. 

Do you have any suggestions? It's not a "life problem" for me, I still can edit my Time lapses on iMac, but I just want to know that this is not a hardware problem in my MacBook. 

Thanks in advance.

62 Messages

 • 

954 Points

if you are on the latest version of LR I would use the link and help outlined in a previous comment and install a previous version of lr. not sure how much that will help with the export speed but interface sure will be more responsive. I do a 600-700 photo export to dropbox inches on the long  side, 300dpi jpg in about an hour or so. 
i have a macbook pro with 8gb of ram and an ssd and it is much faster with the old version of lr.

2 Messages

Thanks for reply. 
I don't have any issues with workflow in LR, just in export process. Interface is smooth and very responsive, just like on my iMac. But, on iMac exporting is much faster, that's strange for me, because in MacBook I have SSD, and in iMac is "ordinary" SATA disk. Ok, memory is much, much "harder" on iMac, 32 GB compared with 8 GB in MacBook, but I think that this kind of slowness isn't normal...

67 Messages

 • 

950 Points

I am on the latest release, and after horrific problems initially, I have stable and good performance on my desktop and even on my, initially slow, laptop.

M Q's:
1. Did I miss any involvement of Adobe in this thread. ?
2. We all know that filesize is expressed in bits, bytes, etc. What is the point of a discussion mentioning inches and DPI, the latter only relevant when we print?

62 Messages

 • 

954 Points

adobe was on here and asked for recording of some test files, then told us to close the panels in lr, that I was using too many local adjustments and files large. since then nothing.
the question had been on exporting being 

67 Messages

 • 

950 Points

My files are approx 45MB. and i have no idea why my problem has gone away. I do use 1:1 previews. Did you  try that ?
(Are you from beautiful Iceland Sigurdur?)

Employee

 • 

1.7K Messages

 • 

32.4K Points

4 years ago

@Sigurdur Watched your recorded video on walking images in develop. It is helpful to see what you are experiencing on your machine (I see that it is a Windows box). I assume you still has the same system setup as you reported before. When you toggle to the next photo, I don't see the Lightroom popping up the "Loading..." bezel as it does in the earlier version of Lightroom. That is good because that is one  optimization we added to CC 2015.6/6.6 to make the walking the photos in the develop (in a normal pace) feel more snappy. Your video shows some hesitation doing the switch. That does not seem to be normal when the next negative have been preloaded by Lightroom in your case.

In your recorded video, do you have the GPU acceleration on or off? I would check to make sure that your GPU driver is up-to-date, you have enough video RAM for the GPU card and it has enough data throughput (speed to transfer data from the CPU memory to the GPU memory) to handle the big image that you throw at it. I realize you have a 3-year old GTX 760 card (https://en.wikipedia.org/wiki/GeForce_700_series).

One question, if you walk adjacent photos A->B, and then try switch from B->A, is the switch more instantaneous than the initial switch from A->B?

Principal Scientist, Adobe Lightroom

62 Messages

 • 

954 Points

hey,
the drivers are up to date. gpu is set to on. it is faster going b-a to a loaded image than it is a-b to a new image.
I have 32gb of ram the card is a 
after downgrading it is faster. 
ps on pen input and all edits is lighting fast and I never have issues there, using the latest updated version.

then there is this line?
"Memory cache size: 0.0 MB"    ??????????

In system settings lr is seeing my system as win 8.1? i have win 10, latest version.

Lightroom version: CC 2015.1.1 [ 1032027 ]License: Creative Cloud
Operating system: Windows 8.1 Home Premium Edition
Version: 6.3 [9600]
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 3.4 GHz
Built-in memory: 32713.8 MB
Real memory available to Lightroom: 32713.8 MB
Real memory used by Lightroom: 2125.6 MB (6.4%)
Virtual memory used by Lightroom: 2223.6 MB
Memory cache size: 0.0 MB
Maximum thread count used by Camera Raw: 4
Camera Raw SIMD optimization: SSE2
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Displays: 1) 2560x1600
Input types: Multitouch: No, Integrated touch: No, Integrated pen: Yes, External touch: No, External pen: Yes, Keyboard: No

Employee

 • 

1.7K Messages

 • 

32.4K Points

This seems to be a different (older?) system than the more capable Windows 10 system that you posted earlier.

>"it is faster going b-a to a loaded image than it is a-b to a new image"
This means the data bandwidth/throughput of your GPU card (CPU RAM-> GPU video RAM) might be the weakest link for this particular machine setup. You might consider upgrade to a more capable GPU to see if it helps. You might as well turning the GPU acceleration off on this machine.

"Memory cache size" keeps track of the size of some internal cache which can be purged once a while. Does this number always remains at 0 for you, even after some Lightroom use?

Principal Scientist, Adobe Lightroom

62 Messages

 • 

954 Points

this is the same computer as last time time I posted! ill keep an eye on that cash but it has been a while (few hours of work) since I emptied it

62 Messages

 • 

954 Points

this system eats anything with out issues!!! lightroom has not been an issue since the last few weeks.

11 Messages

 • 

222 Points

I'm just doing the retrograde to 6.5.1 and hoping this resolves my issues for now. Just back from 5 days of work in the Lake District for client and have 1800 images to go through. Please, please be ok! Fingers crossed!

1 Message

 • 

60 Points

3 years ago

i hate it, i have a AMD threadripper 16 cores , 32gigs of ram and a GTX 1080 and lightroom cc classic lags like hell. when i work and have my resource monitor open, nothing realy is going on there, RAM is on 20% , CPU is on 10-20 %. it makes me crazy when i start a project with a couple of 100 pix and during editing lightroom starts to slow down and gets a lot of latency... :/