Known Participant

Question

Lightroom CC brush hyper slow

Forum|Forum|10 years ago
April 26, 2015
26 replies
25719 views

Just installed the new Lightroom CC and OMG the brush is HYPER slow... like almost unusable with the GPU enabled. Like 20 times slower, no kidding. And my machine is pretty fast and the GPU pass and is compatible and pretty fast with anything else.. Slow like I do not see the results until I release the pen.... Same Machine, same photo LR 5.7 works perfectly fine.

Lightroom version: CC 2015 [1014445]

License: Creative Cloud

Operating system: Windows 8.1 Business Edition

Version: 6.3 [9600]

Application architecture: x64

System architecture: x64

Logical processor count: 12

Processor speed: 3.2 GHz

Built-in memory: 32690.8 MB

Real memory available to Lightroom: 32690.8 MB

Real memory used by Lightroom: 4882.5 MB (14.9%)

Virtual memory used by Lightroom: 5063.0 MB

Memory cache size: 0.0 MB

Maximum thread count used by Camera Raw: 6

Camera Raw SIMD optimization: SSE2,AVX

System DPI setting: 96 DPI

Desktop composition enabled: Yes

Displays: 1) 1920x1080

Input types: Multitouch: Yes, Integrated touch: No, Integrated pen: Yes, External touch: No, External pen: Yes, Keyboard: No

Graphics Processor Info:

GeForce GTX 680M/PCIe/SSE2

Check OpenGL support: Passed

Vendor: NVIDIA Corporation

Version: 3.3.0

Renderer: GeForce GTX 680M/PCIe/SSE2

LanguageVersion: 3.30 NVIDIA via Cg compiler

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attilab86709611

Participant

I have the same issue, the brush works extremly slow with gpu acceleration on. And the interesting part: When i use the brush with GPU ACC. OFF the cpu gets around 50% useage. When i use the brush GPU ACC. ON the cpu gets 99% useage.

J

JetYonkin

Participant

I am also having this problem. I have updated my operating system, my graphics card drivers, my software for my Wacom tablet, and my Lightroom. I and a lot of people are still having this problem.

Where is Adobe support?

Why has this post been up for so long and no one from Adobe taken notice?

Why have I paid so much for programs that won't do what is advertised?

dj_paige

Legend

am also having this problem. I have updated my operating system, my graphics card drivers, my software for my Wacom tablet, and my Lightroom.

You really need to get a faster CPU to have any effect on this problem. These other steps won't speed anything up because it is not a bug.

Where is Adobe? Well, I don't work for them and I don't speak for them, but my opinion is that the non-destructive editing technology they have invented and used in Lightroom works really really well on everything EXCEPT lots of brushing and/or lots of spot healing on a single photo, where this technology demands more than the hardware (specifically the CPU) can deliver.

V

Victor WolanskyAuthor

Known Participant

The difference is that in LR 5.7.1 you can have lots of healing brushes, adjustment brushes, etc etc, and delivers much better than the latest version.

And I'm using an HP Z840 with 40 cores and 256 GB or RAM and a Quadro M6000. You can't beat that machine today, still LR CC2015 is slower than LR 5.7.1 when GPU is ON. Wasn't the purpose of have GPU support make it faster?

It has gotten better in the last few versions. But what is infuriating is the total ignoring us from part of Adobe.

winterstephan

Participant

is solved by unchecking "Use GPU Acceleration"

this is a joke solutiotion, isn't it the keyfeature GPU support?!?

Y

yuvaln64183989

Participant

Hi All

The only thing that eliminate the slowness was to upgrade my desk top system, upgrade to a larger internal RAM from 1X4G to 12G (1X4G + 1X8G) .

this after open the TASK-MANGER (Window) and realize that LR took 90% of the RAM ussage (now its ~30-40%).

Now I can work fast, meaning that mostly the machine wait for me than opposite :-)

Yuval.

V

Victor WolanskyAuthor

Known Participant

Good for you, although 4GB is really low for these days, and most of us have this problem even with machines with 128 GB or RAM like my HP Z840….. but the latest versions of LR has gotten much better, still not as fast as the last iteration of 5.x …

Middel47

Participant

I'm still experiencing problems with LR 6.3 with brushing and GPU Acceleration on. While working with GPU disabled, it keeps crashing. With GPU enabled, it is hyper slow and not workable either way. No response yet from any Adobe engineer / employee that this is being addressed by engineers.

Bought C1 Pro already, but I keep hoping Adobe will fix this issue. Any thoughts here?

note: I proces more than 25GB in a week on raw image files only.

C

CodeThought

Participant

I just noticed the same thing here using LR CC and one of the supposedly 'supported' cards for LR on the Mac.

Graphics Processor Info:

ATI Radeon HD 5770 OpenGL Engine

Check OpenGL support: Passed

Vendor: ATI Technologies Inc.

Version: 4.1 ATI-1.32.25

Renderer: ATI Radeon HD 5770 OpenGL Engine

LanguageVersion: 4.10

Not sure what's going on but I haven't noticed this prior to the most recent version of LR CC. Turning off graphics acceleration (deceleration?) and the problem instantly goes away. Glad I have lots of CPU cores on my mac.

V

Victor WolanskyAuthor

Known Participant

It is pretty weird. I think they have tons of optimization to do and may be not all the experience. May be they need to hire people that knows about this. It used to work extremely bad in my computer and since the last version is working pretty well. I hope next version does not break it again.

Sent from the Moon

T

TheZAbides

Participant

Same issue with the adjustment brush and overall slow performance with LR in general. I'm a professional photographer. I average 80,000 photos in each catalog. I spend 8 - 10 hours in LR daily. I recently built a computer with LR performance in mind to try an combat the over slowness, stutters and delays. The upgrade had has next to no effect. LR's general performance is still painful, however the adjustment brush issue is straight maddening. Off topic: Tethered Capture (Nikon D700 to USB 3.0) is so slow that it serves absolutely no purpose and can't even kind of be considered for use around clients.

LR CC

Windows 7 Professional 64-bit SP1

Intel Core i7 3930K @ 3.20GHz 34 °C

16.0GB DDR3 @ 666MHz (9-9-9-24)

Gigabyte Technology Co., Ltd. X79-UD3 (SOCKET 0) 27 °C

4095MB NVIDIA GeForce GTX 970 (EVGA) 40 °C

238GB OCZ-VECTOR ATA Device (SSD) x2

V

Victor WolanskyAuthor

Known Participant

Your only solution as I see it is either some of the Adobe gurus tell you on which hardware they tested this before consider it ready to release, and get that, or you go back to LR 5.7.1.

Sent from the Moon

R

RussKNY

Participant

So does anyone know what's causing this issue exactly? Where is the bottleneck? When I'm experiencing this "lagging" issue with an adjustment or healing brush I'm not seeing any excessive spikes in terms of CPU, memory or HDD resources on my Mac Pro. So what is the source of the slowdown?

V

Victor WolanskyAuthor

Known Participant

No efficient code or programming I guess.... The latest version released a week ago if you turn OFF GPU will behave like 5.7.1 but still be super slow with GPU enabled.

Sent from my iPad

J

Jao vdL

Community Expert

The GPU acceleration is well known to slow down the brushes. Adobe warns us on that in their "notes on GPU acceleration" on this forum: GPU notes for Lightroom CC (2015)

In short, if you do not have a very high resolution (4K or bigger) and don't have an extremely modern GPU you really should turn it off as you won't see any benefit and might actually slow down certain actions. I really wish Adobe didn't turn this on by default as it is the leading cause of Lightroom 6/CC is slow concerns. If you turn it off, Lightroom 6/CC should be similar to LR 5.7 in speed. For some people this doesn't entirely solve it though but for me it is the same as 5.7.

V

Victor WolanskyAuthor

Known Participant

I have several pretty recent GPUs at the office, in pretty recent HP workstations. It crawls to a stop almost with and without GPU when you have a decent amount of brushes. Just a few like to fix a few eyes and soften a skin not a Problem. But when you retouch jewelry like me, it's plain unusable.

Sent from the Moon