Lightroom 2015.6 Extremely Slow

Hello

I have no answer to the question David Erfurd asked, but I cannot see how some systems have a memory leak and others don't running Win 7 or Win 10

Now it does seem that my comments were a hostage to fortune as directly after I was panning around a 1:1 @1920x1200 image, the system became very notchy and the CPU started to howl. I minimised LR 6.6 and the CPU stopped howling. I maximised about 2 mins on and did the same panning and all was fine and then became notchy. I was doing no editing just jumping from image to image at 1:1 waited for a sec or two for complete redraw and scrolled. The images had been edited previously.

Not really aware of this behaviour before, but I have to say I have not done this before either.

MDE

Hello again
All my tests above were with Win 7 Pro
I re-booted to my Win 10 pro setup and did the same panning with the same files in Lightroom 6.6.
Well the CPU  howls, but panning is not 'notchy' after the file has loaded, 1-2 secs. Lightroom in this regard is much more responsive in Win 10. In both cases GPU is off.

MDE

PS now rebooted back into Win 7 pro and did the same as when I had the 'notchy' problem. Now no problem, Win 7 seems to be as good as Win 10.

Cannot explain any of this

Hello

Now, It seems that there is a validity in the many suggestions to stop work for 2 mins if the system becomes 'notchy'. I have done this several times and after resume, panning a 1:1 image at 1920x1200 is instant and no CPU howl, but seems to get worse in a few mins. Panning about does tax the system as it is continually processing and redrawing, rapidly changing parts of the image. Is there some sort of caching of view memory going on?

MDE

Hello

I did some tests just panning at 1:1 1920x1200 images that have been edited, lens transforms applied as well as some with quite a lot of cloning. This taxes the whole system as it has to continually apply the edits to a changing view. Initially all is well CPU never goes beyond 50%, with no screaming fans and ram is 3.64 (2.60 when Lightroom is not on). Redraw is pretty instant click to go to normal view instant. This continues for about 5 images with CPU and ram increasing, the system gets notchy, but still usable. At the 6th image panning just gets bogged down. Clicking to return to normal view is ignored. Ram about 8GB, CPU spiking but averaging below 50%, with fans running. Minimisng  and maximising brings the response back but not for long. Restarting is best.  This is without GPU.

Turning on GPU. The panning never gets bogged down, but the redraw is very slow and is done tile by tile from the start, rather than the view. MY GPU is a AMD HD5450 and is old. . The CPU seems to work even harder (continual fans form the start) and ram use goes up to 9GB and over. From my point of view using the GPU slows things down overall and seems to use more resources. I use Win 7, 16gb of ram and a quad core. All this is 6 years old. On the whole this system is fine. It is not used professionally.

MDE

Hello

Thanks for your reply.

I have a CPU trace and attach it

The machine is home built 16gb Ram with Quad core 2.93GHz AMD HD5450 video I created a test catalogue with 7 edited images, a couple with minimal processing 3 with very heavy cloning to get rid of objects and the rest in between.

I allowed Lightroom to make the 1:1 previews at 1920x1200 best quality. All catalogues and caches are on the SSD. Cache is 100gB  Video cache is 10gB

Closed Lightroom and started task manager. Initial PC state 3.15gB ram 0 CPU.

Opened Lightroom clicked on first image and zoomed 100%, proceeded to pan about to the extremes of the image. A little notchy, but OK redraw within a sec. Next image started 100% zoom and within a sec. Continued panning and did the same for all images. System got progressively more unresponsive and redraw lagged by secs.

You can see a main peak when the image switched. It seemed to make very little difference what the image was as.I had by the end gone back to the first image ( minimal processing) The CPU trace does not show it but the screen did not by now respond to mouse movement without a large delay with redraw taking time and by now a large delay in switching images, or clicking on the screen to go to normal preview.

Images 3 4 and 7 have large amounts of cloning, to get rid of bins, chairs and overhead wires

MDE

SYSTEM INFO

Lightroom version: 6.6 [ 1078672 ]
License: Perpetual
Operating system: Windows 7
Version: 6.1
Application architecture: x64
System architecture: x64
Logical processor count: 4
Processor speed: 2.9 GHz
Built-in memory: 16374.1 MB
Real memory available to Lightroom: 16374.1 MB
Real memory used by Lightroom: 934.8 MB (5.7%)
Virtual memory used by Lightroom: 936.7 MB
Memory cache size: 866.0 MB
Maximum thread count used by Camera Raw: 4
Camera Raw SIMD optimization: SSE2
System DPI setting: 96 DPI
Desktop composition enabled: No
Displays: 1) 1920x1200
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info:
AMD Radeon HD 5450

Check OpenGL support: Passed
Vendor: ATI Technologies Inc.
Version: 3.3.13399 Core Profile Context 15.201.1151.1005
Renderer: AMD Radeon HD 5450
LanguageVersion: 4.40

Application folder: C:\Program Files\Adobe\Adobe Lightroom
Library Path: E:\Test\Test.lrcat
Settings Folder: C:\Users\mengles\AppData\Roaming\Adobe\Lightroom

Installed Plugins:
1) Canon Tether Plugin
2) ColorChecker Passport
3) Facebook
4) Flickr
5) Leica Tether Plugin
6) Nikon Tether Plugin
7) rc Xmp Crop

Config.lua flags: None

Adapter #1: Vendor : 1002
 Device : 68f9
 Subsystem : 3661043
 Revision : 0
 Video Memory : 1010
AudioDeviceIOBlockSize: 1024
AudioDeviceName: Speakers (Realtek High Definition Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 44100
Build: LR5x102
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 0
GL_ACCUM_BLUE_BITS: 0
GL_ACCUM_GREEN_BITS: 0
GL_ACCUM_RED_BITS: 0
GL_ALPHA_BITS: 8
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 2048
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: AMD Radeon HD 5450
GL_SHADING_LANGUAGE_VERSION: 4.40
GL_STENCIL_BITS: 8
GL_VENDOR: ATI Technologies Inc.
GL_VERSION: 4.5.13399 Compatibility Profile Context 15.201.1151.1005
GPUDeviceEnabled: false
OGLEnabled: true
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• MacBook Pro mid 2012, retina
• 16GB RAM
• 2,7 GHz Core i7 processor.
• 750GB SSD
• NVIDIA GeForce GT 650M 1024 MB
• OS X El Capitan 10.11.3
• Adobe Creative Cloud - applications always up to date
• Using mostly Lightroom and Photoshop (I'm a photographer, that's my job & passion)

• iMac 5k, late 2015 model, 27", fully tuned and loaded with 
• 64GB RAM;
• 4,0 GHz Core i7;
• 1TB SSD (no fusion drive) by the way it's 4x faster in read & write times than my old MacBook Pro. Performance was measured with Blackmagic Disk Speed Test v. 2.2.2 and the iMac's SSD exceeds the scale with over 1200MB/s write and 1900MB/s read speeds;
• AMD Radeon R9 M395X 4096 MB;
• OS X El Capitan 10.11.3
• Adobe Creative Cloud - applications always up to date (currently LR CC is 2015.4, CR is 9.4, PS is 2015.1.2)

Hello Simon

Thanks for the reply.

As far as I can see from my panning tests, it does not matter too much if the spot tool is used or not. The first image of the oranges has really minimal processing, just lens correction sharpening/noise and camera calibration. This image was fine at the start of the panning sequence, but the computer was pretty well bogged down by the time I returned to it, as the 8th image. Giving the whole business a small rest, brings responsiveness back, but not for long

I did reinstall Lightroom 6.0. This seems marginally more responsive overall. I also have upgraded to 6.5, which I think is not very different from 6.6. I am processing as far as I can see 1920x1200 13mb 16 bit images with an old computer and not having too many problems. I imagine Adobe has systems that cope very well with 4k screens and such. It should perhaps give an idea of what is needed to process large pixel previews

MDE

Hello Simon

Call me a sad old fool, but I did another panning test and curiously this time, every thing went pretty smoothly until the 5th image, when the system began to lock up.

I took a system info before and after the test and after 5 mins rest. Why is Lightroom using so much virtual memory when there is still usable system ram?

These are the numbers at the start

Built-in memory: 16374.1 MB
Real memory available to Lightroom: 16374.1 MB
Real memory used by Lightroom: 962.8 MB (5.8%)
Virtual memory used by Lightroom: 970.9 MB
Memory cache size: 839.8 MB

These are the numbers at the end.

Built-in memory: 16374.1 MB
Real memory available to Lightroom: 16374.1 MB
Real memory used by Lightroom: 4240.0 MB (25.8%)
Virtual memory used by Lightroom: 4835.0 MB
Memory cache size: 2605.7 MB

Lightroom is using more virtual memory than real memory.

After 5 mins rest

Built-in memory: 16374.1 MB
Real memory available to Lightroom: 16374.1 MB
Real memory used by Lightroom: 2739.9 MB (16.7%)
Virtual memory used by Lightroom: 2901.0 MB
Memory cache size: 0.0 MB

There seem to be a lot of real memory not being used!

Lightroom seems to resort to virtual memory pretty early.

My Windows virtual memory is on the SSD as are all caches.

Is windows managing memory use or Lightroom?

I am now back on Lightroom 6.6, as from what I can see, there is not a lot of difference in performance between the iterations.

MDE