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Lightroom running slow on MacPro 6 core

M

maser

macrumors newbie
Original poster
Oct 27, 2016
20
2
I need some help from the team here.
A couple of months ago, my Imac 27" I7 died (motherboard) and apparently apple no longer makes the motherboard for it. So I decided to get a Mac Pro, 6 core, 16GIG unit. I am an armature photographer and I send some of my time using Lightroom and Photoshop. Lightroom runs very slow on this computer. e.g Preview changes (\) takes 3-4 seconds Vs less than 1 second on my macbook air. Same goes to applying filters; much faster with the air. I have tried several "speed optimization" suggested found on YouTube (increase cache, disable 3d processing, etc) to no avail. What am I missing?
 
Do you have GPU acceleration on in Lightroom? If so, turn it off. Many postings have had issues with the acceleration.
 
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Does it do this every time you open it and on the same images? Wondering if there is a problem with the previews?

Edit: Have you asked this on the Adobe Lightroom forum?
 
Here no problems with the GPU acceleration, works really fast.:)

Your macOS version is?
Where are the photos stored ? NAS in use? external disk? usb? TB?
Have you increased the LR camera RAW caches? a big number - really solves problems...
Are you building in the same time 1:1 previews?
What about your monitor, is it a 4k one?
Are you working with medium format? What resolution your photos are ?
 
JimGoshorn said:
Does it do this every time you open it and on the same images? Wondering if there is a problem with the previews?

Edit: Have you asked this on the Adobe Lightroom forum?
Click to expand...
It does it every time. I asked here 1st as it seems to be a computer related issue. Runnning the same OS and version of LR (CC) on both computers but the Mac Pro is noticably slower than the mac book air.

Thank you all for all the responses, appreciated
 
Did you buy the Mac Pro used? If so, wipe the hard drive and reinstall everything. Also check Activity monitor to see if something is running in the background that is slowing things down. In any case, open it up to check that the video cards and RAM are seated properly.
 
theatremusician said:
Did you buy the Mac Pro used? If so, wipe the hard drive and reinstall everything. Also check Activity monitor to see if something is running in the background that is slowing things down. In any case, open it up to check that the video cards and RAM are seated properly.
Click to expand...

Since OP is using the nMP, it's almost guarantee that the graphic cards are seated properly.

To OP, how about if you tick the box for GPU acceleration?
 
h9826790 said:
Since OP is using the nMP, it's almost guarantee that the graphic cards are seated properly.

To OP, how about if you tick the box for GPU acceleration?
Click to expand...

I bought it new from the local Apple store and I have since loaded a fresh copy of the latest OS in an attempt at solving this problem but to no avail.
 
That is a fair s
pastrychef said:
The difference is about 550MB/s vs about 1600MB/s or approx 3x. This corresponds well with the OP seeing 3-4 seconds vs 1 second.
Click to expand...

Good point, let me move the catalog and a few of the photos to the main (internal) drive and see if it makes a difference.

thanks
 
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pastrychef said:
The difference is about 550MB/s vs about 1600MB/s or approx 3x. This corresponds well with the OP seeing 3-4 seconds vs 1 second.
Click to expand...

But the photo itself is not 1600MB in size. The slow response in photo's related application usually because of the high latency from the HDD. As long as using SSD, even a 100MB size photo, only takes 0.2s for a 550MB/s SSD to load. How can it make the respond time to 3 seconds? It just doesn't make any sense.

Of course, it could be the enclosure / connection / cable's problem or even a faulty SSD. However, the difference should be coming from the speed difference of the SSD, unless the photo is extremely large.

Also, it still couldn't explain why the Air can apply filter faster than the Mac Pro.
 
If it's just one photo, sure, it won't make much difference. But we don't know how large his library is. A large library of raws will definitely be affected by the SSDs.
 
pastrychef said:
If it's just one photo, sure, it won't make much difference. But we don't know how large his library is. A large library of raws will definitely be affected by the SSDs.
Click to expand...
The photos are around 30mb each and the library contains around 3000 photos.
 
But how big can a library be if resides in Air's SSD ?

Is there an external drive involved?

EDIT: just saw the OP's reply. 3000 are not too much... it's a small number
 
filmak said:
Also are you plugging the ssd directly to MP or through a dock or after another device?
Click to expand...
It is connected directly to the MP. The library is located in the internal drive of the MP and the photos are in a external drive connected to the Mac pro via Thunderbolt. "BlackMagic" returned 335mb/sec read time (enough to load 10 pictures per second).
 
pastrychef said:
If it's just one photo, sure, it won't make much difference. But we don't know how large his library is. A large library of raws will definitely be affected by the SSDs.
Click to expand...

I know, but obviously LR doesn't need to access the whole library every time before give me any respond. If OP is talking about the library importing time. Yes, definitely the faster SSD has advantage.

maser said:
It is connected directly to the MP. The library is located in the internal drive of the MP and the photos are in a external drive connected to the Mac pro via Thunderbolt. "BlackMagic" returned 335mb/sec read time (enough to load 10 pictures per second).
Click to expand...

335MB/s seems a bit low for SSD via a TB connection, what SSD is it?
 
Preferences: File Handling and Catalog Settings: What's your Preview Rendering Quality setting? What's your RAW cache folder setting? See my attachments. Don't purge stuff more than you need to or it'll slow down your workflow. I only discard my 1:1 HQ previews after 30 days because I "develop" within a few days of importing. YMMV.
 

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