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Poor performance while generating Smart & 1:1 Previews

Community Beginner ,
Oct 29, 2021 Oct 29, 2021

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After upgrading to Lightroom Classic 11, generating Smart Previes & 1:1 previews are ridiculous slow. LR uses only 2-4 cores becoming unresponsible! All other cores are not used. RAW files, catalog files, system and LR Catalog placed on SSD's. This performance is a joke 😞

Ryzen 5900X, 32GB DD4, X570 Aorus Master, 3*Corsair MP510 2TB, 2* Samsung 870EVO 4TB

 

Zrzut ekranu 2021-10-29 233730.jpg

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Community Beginner ,
Oct 29, 2021 Oct 29, 2021

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This happens only when Smart Previews & 1:1 previews are generating in the same time. Generating only Smart Previews or only 1:1 previews is ok, and all cores are perfectly used.

 

Zrzut ekranu 2021-10-29 235144.jpg

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LEGEND ,
Oct 29, 2021 Oct 29, 2021

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Might want to turn off that Auto Sync

 

Creating previews for 8005 files, going to hurt.

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Community Beginner ,
Oct 31, 2021 Oct 31, 2021

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Auto sync has no impact for creating previews. One task - generate Smart Previews utlilize 100% CPU power. Another one task - generate 1:1 previews also utilize 100% CPU. These two task running simultanously utlize only 20% CPU and take much longer time than normal.

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