Lightroom Performance on 5950x Problems

Just my thoughts, the export function in LrC is not just a copy / paste function, there has to be rerendering of the original and apply all your edits to send the final image to an alternate location. The speed of this process will be restricted by the weakest link in the process.

Prior to the release of Lightroom in Feb 2007 Adobe purchased a company that produced an application for rendering raw images it was called Rawshooter Premium. I was using that software application at the time and it had a feature which allowed one to setup an export process prior to starting editing the images. As you finished ending an image or batch of images you could add them to the export queue then start the export process, it was a background as only used computer resources during idle time so you could continue carrying out your editing. That way by the time you finished editing the export process was well on the way to completion.

Maybe a user who is in need to produce images in a short timeframe could make a case for submitting a idea for such a feature.

Export time under 2 seconds per image is quick if you are applying lots of edits to images.

Hello, 

I have a similar setup like you. (5950x and 3070)

Lightroom Classic-Version: 12.2.1

When I use CPU + GPU export, I only use 4 Cores / 8 threads and 20 % of the GPU. The export time is like 70-80 sec for 100 Photos (Canon EOS R --> DNG converted). 

For the CPU export, i get 100% CPU utilization and 4.3 - 4,4  GHz (140-160 Watts) and 60sec for 100 photos

The only thing i can think of is probaly the PBO in your bios is deaktivatet

Hello Johnrellis

Thank you for your reply,

starting from point 1 - I have actually done this test in lightroom the 3900XT Processor was faster than my RTX 3070 at exports,

However upon doing this test again the RTX 3070 is faster than my 5950x, however as i did this test previosly i know my RTX 3070 isnt faster than my 3900XT, which would then make my 16 Core CPU slower than its 12 Core counter part.

at the moment i still have my 5950x in my system and i might swap it out if i cant get to the bottom of this mystery as it is costing me lot of time waiting for exports,

so in order to think i am not imagining this, i have just checked a gallery i exported last week when the 3900Xt processor was still in my system, first photo export time 10:38am - Last Photo export time 10:47 - 9 mins to export approx 500 photos.

so i tried to export the same gallery again and in 5 mins the 5950x only managed 100 photos! so in ten mins that would be 200 photos so we are talking approx 25 mins for a full 500 photo export that my 3900XT would have done in 8 mins.

going to point 2 the performance remains consistently slow throughout the whole export at a rate of 25 photosish per min.

the lightroom is the same version i was using on the 3900Xt getting blistering fast exports, the only thing that has changed is the CPU change, I have updated Mobo, Bios, Chipset and GPU Drivers just now and it is still the same,

worse comes to worst i will put my 3900XT back in my computer but it would be nice if i could figure out what is causing the painfully slow exports on one the best ryzen 16 core CPU of its time.

i will do a log dump for the 3rd point 

Thank you so far

Some initial troubleshooting steps:

1. Try unchecking Preferences > Performance > Use Graphics Processor > Use GPU For Export. Do exports go faster? If so, update your graphics driver by going directly to the manufacturer's web site.

2. Look at the progress bar in the upper-left corner of LR. Does the export stall for the first 30 seconds to couple of minutes before exporting the first photo, and then exports going at the formerly observed "normal" speed?  A number of people have observed this, and there are no known workarounds other than rolling back to LR 11.

3. If steps 1 and 2 don't help, do the LR menu command Help > System Info and copy/paste the entire contents here, so we can see the precise hardware and software versions LR is using.