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iMac 5K + Lightroom

FredT2 said:
Two points: first, what this video is showing is nothing like the performance I get with my machine. His is much slower. Second, where's the comparison to 4K?
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There are no complaints about 4k on the nMP. Thousands of professionals use those every day for image editing on 4k monitors. If there was any similar issue to that shown above, we'd know about it.

I'm not saying LR is always slower on the retina iMac at 5k. Rather I'm saying I don't see how the 80% greater pixel count (vs 4k) would account for the slowdown magnitude *sometimes* observed. The fact you are not seeing it tends to support that -- it's not always seen.

Many have posted "of course it's slower -- it's 5k, what do you expect, Adobe should use the GPU", etc, etc. Your own experience casts that theory in doubt. If it's the unavoidable nature of the higher 5k pixel count, you'd see it 100% of the time on the same operations, and you'd see it more consistently across all apps, not just LR.
 
joema2 said:
The behavior is basic LR operations like crop/rotate are *not* a little slower at 5k vs 4k -- they are vastly slower. I can't see how an 87% larger image on a 14% faster machine (call the difference about 70%) accounts for such a huge difference. There must be more involved.
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On your 5K iMac they may be vastly slower; on mine I can't even see a problem. At all. With crops and rotations.

I have some stuttering during slider transitions, but nothing like the dude in the video. I'm using 14 megapixel RAWs. Weird. I keep thinking its some odd facet of LR since it doesn't happen with other stuff. I'm gonna download DxO OpticsPro and try that.
 
robgendreau said:
On your 5K iMac they may be vastly slower; on mine I can't even see a problem. At all. With crops and rotations.

I have some stuttering during slider transitions, but nothing like the dude in the video. I'm using 14 megapixel RAWs. Weird. I keep thinking its some odd facet of LR since it doesn't happen with other stuff. I'm gonna download DxO OpticsPro and try that.
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Dude in the video here. I'm editing 5D MK2 and 5D MK3 Raws. In this case a 21,1 megapixel file. Of course it is a little slower, because I was recording the screen at the same time. But this is the performance I get on two iMac 5Ks with i7, 295, 24 gigs of ram. Files coming of SSDs or Thunderbolt RAID0 drives. No difference.

My guess: It's either a problem with the 295, if not everybody gets this problems, or because of different cameras in use. What camera and iMac configuration are you guys using? Maybe the problem is isolated to the 295?
 
D800E raw files and panos. A little stuttering in Lightroom, nothing like your screen. Absolutely fluid in Aperture.
i7 295x, I split the fusion drive. OS and apps on the 128 ssd

Lightroom cache 100 gb on the ssd as well
 
melllvar said:
Dude in the video here. I'm editing 5D MK2 and 5D MK3 Raws. In this case a 21,1 megapixel file. Of course it is a little slower, because I was recording the screen at the same time. But this is the performance I get on two iMac 5Ks with i7, 295, 24 gigs of ram. Files coming of SSDs or Thunderbolt RAID0 drives. No difference.

My guess: It's either a problem with the 295, if not everybody gets this problems, or because of different cameras in use. What camera and iMac configuration are you guys using? Maybe the problem is isolated to the 295?
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First, I am confident that it has nothing to do with the 295. Lightroom doesn't use it, and I have the same configuration as you. Personally I think that it is partly a matter of perception and expectation. When I first starting using Develop with the retina iMac, I was horrified by how slow it was. Since then I've realized that I can get my work done just as well as before.

Second, the performance appears to be related to the number of pixels being displayed in the image area and have little to do with file size. So, for example, performance is pretty much the same with my 20D files as with Sony 7r files, 8MB vs 35MB. You can demonstrate this for yourself by taking Lightroom out of full screen mode and making the window something like 1/3 of the full screen size. Performance then becomes more like "normal". There is no doubt that the Develop module lags a good bit. But for me it is still useable. If Adobe can't make significant improvements in version 6, then I'll see about moving to something else.
 
I'm using Olympus and Panasonic m43 RAWs, about 15MB. I agree that the size shouldn't matter. I'm using 2880 previews in the catalog settings; dunno if that makes a difference.

I also noticed when loading some Canon RAWs for the first time the other day it was very slow in processing the import. Maybe all RAW aren't as easily processsed?

Rob
 
misho73 said:
Same performane as mine. I also edit pictures from 5D mark II. crop/rotate tool is the worst.
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I'm beginning to wonder if it isn't camera specific. I know my .ORF files process on import much faster than .CR2 files. Maybe having to process different kinds of RAW data from different cameras is more taxing? After all, it shouldn't be a matter of just flipping around a big TIFF, right, since aren't there lens corrections and whatnot at work? Or is that independent of an action like rotating, or changing the tone curve, etc?
 
robgendreau said:
I'm beginning to wonder if it isn't camera specific. I know my .ORF files process on import much faster than .CR2 files. Maybe having to process different kinds of RAW data from different cameras is more taxing? After all, it shouldn't be a matter of just flipping around a big TIFF, right, since aren't there lens corrections and whatnot at work? Or is that independent of an action like rotating, or changing the tone curve, etc?
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The .CR2 from my other rebel body loads faster that the .CR2 from 5D MkII. I guess it's normal due to the difference in file size.
 
mdelrossi said:
D800E raw files and panos. A little stuttering in Lightroom, nothing like your screen. Absolutely fluid in Aperture.
i7 295x, I split the fusion drive. OS and apps on the 128 ssd

Lightroom cache 100 gb on the ssd as well
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And exactly same here with D800 NEFs. I am a photographer, I use Lightroom for a living and there is no problem with my RiMac (i7 / 295 / FD 3TB / 32 GO).
 
FredT2 said:
Thanks very much for that information! We have something to look forward to.
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I'm not really sure we learned anything new there. It's fairly obvious that Adobe wasn't going to release LR6 this year. 2014 is pretty much over. LR6 is definitely on the horizon as LR5 have been on the market for well over a year now. Adobe needs to get people to upgrade so that they get paid.
 
As anybody suggested converting your camera RAW files to DNG on import or in the Library module once imported. There are significant advantages to converting to DNG.

Rick
 
Wanted to add that yes, LightRoom 6 runs a great deal better on my high-end 5K iMac (i7, 295X, 32GB RAM, 1TB SSD) than LightRoom 5.
 
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