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Apps | Demo | Docs | Install

Add the recommended Imaginary micro-service to optimise Photos thumbnail loading speed (which is painfully slow right now)

Scheduled Pinned Locked Moved Nextcloud
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  • marcusquinnM Offline
    marcusquinnM Offline
    marcusquinn
    wrote on last edited by
    #1
    • https://docs.nextcloud.com/server/24/admin_manual/installation/server_tuning.html#previews
    • https://github.com/h2non/imaginary
    • https://github.com/h2non/imaginary#scalability

    We're not here for a long time - but we are here for a good time :)
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  • girishG Offline
    girishG Offline
    girish Staff
    wrote on last edited by
    #2

    Interesting, I guess this provides optimizations over imagemagik. There hasn't been any release since 2 years though - https://github.com/h2non/imaginary/releases/tag/v1.2.4 . I am not sure why nextcloud offloads basic functionality to some externa project of unknown maintenance state 😕

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  • vladimir.dV Offline
    vladimir.dV Offline
    vladimir.d
    wrote on last edited by
    #3

    By default, Nextcloud generates photo thumbnails on-demand that leads to slow Photos thumbnails load. To speed it up we’re using the Preview Generator app for Nextcloud to pre-generate previews regularly.

    First we set the default thumbnail sizes by using the "occ config" commands:

    sudo -u www-data /usr/bin/php /app/code/occ config:app:set --value="32 256" previewgenerator squareSizes
    sudo -u www-data /usr/bin/php /app/code/occ config:app:set --value="256 384" previewgenerator widthSizes
    sudo -u www-data /usr/bin/php /app/code/occ config:app:set --value="256" previewgenerator heightSizes
    

    Then we generated previews for all existent images:

    sudo -u www-data /usr/bin/php /app/code/occ preview:generate-all -vvv
    

    It took about 3 weeks on our host to generate preview images for 4Tb of data which takes additional 500Gb.

    Once it's finished we setup a cron job to generate previews:

    0 */6 * * * sudo -u www-data /usr/bin/php -f /app/code/occ preview:pre-generate
    

    TBH, it helped us a little but our Photos are still loading for 50-60 seconds and we are seeking any solution to speed it up.

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