How to boost LR Library performance (4.1 RC2)

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  • Updated 6 years ago
In the Library module, whenever I click on a RAW photo, LR initially shows a pixelated image that then becomes sharp about half a second later.

This happens even for images where I have rendered 1:1 preview. It is a distraction that cuts down on my productivity.

Here are the steps that I've taken to try to cut down on this. I use a three-disk setup as follows:

Drive C: has the OS (Windows 7), Programs, and ACR Cache
Drive D: has the photos
Drive E: has the Lightroom catalogue, previews and nothing else.

All three drives are 7200 rpm.

I have also rendered all photos to 1:1.

I have 8 Gig of RAM and a fast CPU.

Is there anything else you would recommend for speeding up scrolling through the library?
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Photographe

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Posted 6 years ago

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Lee Jay

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Make drive E an SSD.
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Photographe

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Lee Jay. Please see comment by Dorin below. It seems that this pixelation happens only when I scroll through the library with the mouse wheel.

It does not happen when I scroll with the arrow keys or just click on a photo.

Do you think this will helped with an SSD, or should a bug report/feature request be filed?
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Dorin Nicolaescu-Musteață, Champion

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Btw, my catalog is on an SSD. So... no, it won't help.

Also, despite the annoying pixelization (or maybe thanks to pixelization), Lightroom is able to flick through images as fast as I can scroll my wheel, which quite a bit faster than anyone is able to hit their arrow keyboard button. Using the keyboard, Lightroom can, but only barely, keep up with key presses (though without the pixelization).

So, perhaps, it's by design: a faster but "dirtier" method for a faster input device, and a slower but cleaner method for a slower input device.
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Photographe

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I like to go through the catalogue very quickly to look for keepers. I usually use the scroll wheel apparently. I will try to switch to using the keyboard, which is less comfortable for me a lot of the time. The quick and dirty method doesn't do it for me. I want to be able to see the picture, not a pixelated version of it, and that fraction of a second is disconcerting for me (and my audience who are usually in the seat next to me). But you saved me having to buy an SSD for now!

Btw, how big does the SSD have to be? My Catalogue and Peviews folder is over 60 Gig (for a 60K photo catalogue).

Do you keep the ACR cache and pagefile on the same disk as the LR catalogue and previews?
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Photographe

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Thank you Lee Jay. If E: is upgraded to SSD, would you keep the pagefile and ACR Cache on C: or move them to E:?
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Lee Jay

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For Library performance, it's the catalog and previews that matter.
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Dorin Nicolaescu-Musteață, Champion

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How do you move from photo to photo in Develop:
- Keyboard arrows,
- scroll with the mouse wheel,
- or click i the film strip?

If I use the mouse wheel I can see the same half-second pixelated preview, otherwise — not.
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Photographe

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I use all three methods! I will compare the three methods. This is only in Develop?
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Dorin Nicolaescu-Musteață, Champion

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I was talking about Library Loupe.
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Photographe

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You are absolutely right, the pixelation happens when moving with the mouse wheel, not with the keyboard arroes or clicking on the film strip. What do you make of that?
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Dorin Nicolaescu-Musteață, Champion

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No idea.
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Joseph Rivera

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I also was getting the pixelation with the arrow keys (which I use exclusively) so it isn't just from the mouse wheel. I have and SSD for all of my drives — so it isn't that either.

What helped was going into Catalog Settings and changing the settings for Preview cache to 1440 pixels, Medium. This gives me a near-instant view of the photos as I flick through. There is still a pause while Lightroom applies it's default corrections — but the photo is not pixelating during that pause.

There is no real benefit to rendering at 1:1, unless you are flicking through the photos zoomed in at 100%. Smaller renders are perfect for a quick check to see what is worth exploring further.
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Dorin Nicolaescu-Musteață, Champion

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That's a different problem. If your previews are too small, Lightroom has to render them on the fly. The problem reported by OP, is happening even if the previews are prebuilt and large enough.
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Photographe

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I have often wondered what was the correct setting for "Standard Preview Size" and whether it matters after 1:1 Previews have been generated. I am afraid there aren't any good answers out there. Throwing more CPU muscle and faster hard drives at the problem is not a perfect solution.