Joexx

It would seem that the later versions of LR have not had a positive impact on my configuration, just the reverse. I started noticing performance issues sometime in the fall. not sure exactly when. if I stop LR and restart, it does NOT correct the issue. Logging off of my user ID and logging on (not re-boot) immediately corrects the issue. (of course, re-boot works also, but takes longer). This would point to some resource hanging up, probably a LR programming bug. Seems to act similar to a memory leak, but I do not see any memory areas that are getting full.
An example of the degraded performance ( while in Grid display of Library mode): If I want to rate 5 pictures the same. I select (highlight) the 5 pictures. I may have a 10 sec delay before the computer responds with the pictures highlighted. As of yesterday, I have turned off the performance option to use the video card. I have used LR for a while and it may have improved the situation. After a while I will turn on the option again and see if the problem get worse. I also have several monitor tools running all the time now, so I may see what the issue is. This does seem to be consistent with my issues, because I seem to more impacted when I am doing display related actions . In develop mode, doing edit functions, I seem to be mostly OK.

Thanks

pithydoug Loc: Catskill Mountains, NY

Please keep us posted if you find anything.

Jack 13088 Loc: Central NY

Yes, it sounds like a memory leak or even a race condition but we need to know when, where and, as Nancy Kerrigan famously exclaimed, “Why me?!”

The Log On fixes it but Program restart doesn’t fix it has to be the best clue. Of the suspects on my list the display adaptor moves to the top. Especially if a user log on resets the display setup.

Here are the details of my trials with an Radeon HD 7570 adaptor manufactured by HP. In the on and off again saga that I went through thru there was a time when some operation would cause display operations to slow to a crawl. For example those cute little animations like folder flying during copy would be slowed at folders jumping a little bit every second. Apparently under some error conditions the display adaptor functions would be replaced with a software emulation written in ancient Greek. I wound up forcing shutdown with the power button because I couldn’t wait for the normal commands to be displayed. This was under Windows 7 I believe.

I told myself “I told you so.” When Adobe announced they were going to use the power of the GPUs in display adaptors to speed things up I thought that was a great idea they would never make work. There is a lot of processing power there but the display adapter have diverse architectures even within a single manufacturer that has to be connected through an interface not designed for nor thoroughly tested for that application. The Lightroom Queen, who I judge to be the best Adobe surrogate, says to try it both turned off and turned on to decide which gives the best results.

Joexx

Here is an update. It takes me a while to test it, because I do not use LR every day. Anyway, right now it does seem like it is related to using the video card. Since I unchecked using the video card ("performance" section of LR) it seems much better. My guess is that some update in the past several months was not compatible with my specific video card. Since I do not do any "gaming" it is just a basic card installed so I could drive 2 monitors. Never had an issue before, but if I can figure out a card that works well with LR, I will probably upgrade. In a few days, I will turn back on the (un) performance option :-) and see if the problem comes back. I will update info at time.

cjc2 Loc: Hellertown PA

I've learned a few things over the four years I've been using Lightroom. My newest machine, an Apple iMac Pro (base model) really made a difference. I have begun to think it was designed specifically for Lr. I've found total memory to be important, with 16GB the least, but I like 32 GB better. I had that in my older iMac and I have it now. Video cards can also be very important and I've found this to be a finicky issue, but have had no problems with the base model (4GB) in my iMac Pro. So far anyway. Although I have a 1GB SSD, I send all my images to an attached ThunderBolt 3 drive, which is incidentally in a RAID 1 configuration. While sending them to the SSD might be slightly faster, I prefer to send them to where I will be storing them and I do save the time and pain of moving them later. I also, during import, send my images to a Synology NAS for immediate backup. I'm a busy sports photographer making 100,000+ images a year and my PP speed is very important to me so I've 'thrown some $$$ at it and am very happy. Hope this helps. Best of luck.

Joexx

After several more days of testing, I am pretty sure that the issue I have is because of a bug in LR when using my video card. When I unchecked using the video card ("performance" section of LR) I do not seem to have any problems. When I check this option, after about 30 min or so, I experience a significant slowdown. Yesterday, I LR also "hung" up within 30 min of this switch. I had 0% gpu utilization. I have a 4 cpu processor (8 way with Hyperthreading). the monitor showed 100% utilization on cpu 1 . under 5% on all other 8 cpu. memory usage was about 55%. disk I/O not high.

I have not manually changed the drivers for my video card. So ,my best guess is either a recent Microsoft update or Adobe update introduced an incompatibility (bug) in my configuration
My plan is to upgrade to a better card that is specifically listed as compatible with LR.

cjc2 Loc: Hellertown PA

You can certainly upgrade your video card, but even if it lists compatibility with Lightroom you need to know what OS and version plus what type and version of Lr. You might be better served by contacting Adobe support BEFORE any purchase. You should also saee if you have the latest driver. Best of luck.

Jack 13088 Loc: Central NY

I might start my search here https://www.pugetsystems.com/recommended/Recommended-Systems-for-Adobe-Lightroom-Classic-CC-141/Hardware-Recommendations.

Joexx

I just got around to checking out the link you suggested. Thanks, it looks like they have some really good information on configurations for LR & PS