Lightroom: Smart previews slow performance

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  • Updated 1 year ago
  • (Edited)
Hello! I have 4500 small jpg files in a catalog.

I applied Library - Preview - Build all 1:1, but ...

When I activate a smart collection I see a lot of disk activity reading and decoding the jpg files, the delay time becomes worse when I apply filters with keywords that include other keywords. Also when I click on a set of collections that includes several smart collections.

Are you reading each picture on the disk every time?

I think this should not happen, I think ONLY the catalog’s preview file should be accessed.

My disk is encrypted with Filevault, that means more delay time.

I'm curious about this situation.
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drobtitan

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Posted 1 year ago

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Johan Elzenga, Champion

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You talk about the previews 'file', but 'previews.lrdata' isn't really a file. It's a so-called 'package', which is a folder with a special flag, that makes it look like a single file. The previews are individual files within that package (right-click on it and choose 'Show Package Contents' if you want to see inside this package). Is it possible that your screenshot simply shows that Lightroom accesses its preview files?
(Edited)
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drobtitan

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I don't know how to see the path of the opened files by Ligtroom in real time, so, the real cause of the slow performance should by provided by the developers.

By the way, thanks for the info Johan, Now I see the contents of the previews.lrdata as you say, this is interesting.
(Edited)