full 64GB RAM usage slows lightroom down to zero

[daniel_munich]

Our private family catalogue has 161.000 pictures, but until today I could work with it smoothly.

Now, after returning from vacation, I tried to sync about 7.500 new pictures from CC, but it is inexplicably slow (120 pics within 1 hour). It is indeed so slow, that I can't do anything but wait.

Windows 11 task manager tells me that 98% of my 64GB RAM is in use by lightroom classic. If I restart, the percentage climbs up slowly. As long as there is some RAM left for working, I can choose pictures, edit a.s.o.

But as soon as the RAM is occupied, that's it. Lightroom classic is blocked.

What could it be? Windows 11 pro AND lightroom classic installed updates first.

Eventually, it could be connected to the Cloud-Sync?

Any ideas? I couldn't find a support page with real persons for help, couldn't open a support ticket...

Thank you!

ps. lightroom system info as txt attached

[GoldingD]

It is the apparent opinion by many members that Adobe has fouled up the SYNC in LrC to/from cloud. As a member who never (rarely) uses sync, I do not have this issue. If I did, I would be not happy. Looks like Adobe fouled this up, then created a fix, and it is still fouled up (at least per all the discussions on it)

• If you have images to SYNC, then probably let that complete before attempting to accomplish any editing. Do not be surprised if you need the sync to run overnight.
• If you need LrC to behave, then pause/stop all sync, and only restart it when done editing.

[GoldingD]

Physischer Speicher in Camera Raw: -176760MB / 65462MB (-270%)

Now that looks odd

Can you post in a reply a screenshot of LrC /Preferences/Performance/

[daniel_munich]

Yes, of course. Thanks for now for your answer!

Over night, it synced just 600 out of 7500 pictures from LR Cloud.

It will take 10 days with this speed 😉

[GoldingD]

Bibliothekspfad: L:\Kataloge\Familienfotos\Familienfotos.lrcat

That particular hard drive, Your L drive. How much free space in percent (%) exists on that drive. Looking for at least 20% free, some say 25% free. Less than 20% free and LrC performance degrades.

my example (properties) :

[daniel_munich]

Just 14%, good hint! Thank you.

L: contains only the lightroom catalogues, the images/videos are on their own drives.

Due to your questions I also found a further problem: Within LrC I defined a CameraRAW Cache on my T: (temp) SSD.

There was NO space left, because my of my son's steam library 😉

Let's try to improve that, too.

[daniel_munich]

It was a good hint, but even with 50% free space on L: (Lightroom catalogues) and T: (temp, cache) it's not much of a difference. The best sync performance comes in 10-20mins, before the RAM is full, so I re-start LrC regularily, hoping to finish the sync within 2-3 days... Maybe, Adobe will provide a solution with the next update...

Thanks, again!