That Problem has been reported and Adobe is working on it. Try setting Photoshop Scratch off you boot disk onto some other disk with a huge amount of free space. Photoshop Writes both Temp files and also uses Scratch space. Separating these will spread the load. If you Boot drive fills its a temp file problem if scratch fills it a Photoshop scratch problem.
thanks for your reply. I don't have another disk and having to buy a whole new one just to run PS seems a tad expensive.
On a Mac the Boot drive and scratch drive are the same, apparently. Is there any way I can stop PS creating so may temp files before I even start on the thing? It just seems a little bizarre how 212GB isn't enough to run the program. Is there a setting I can change?
Its most likely Scratch space filling you boot disk and I believe there must be a scratch disk set in you Photoshop preferences. The Space required for temp files should not be great.
I have a Mid 2012 MBP. 500 GB SSD/16 GB ram/OSX 10.12.5
Only one time did my SSD ever fill up. As it is Activity Monitor shows Photoshop taking up 2.9 MB of disk space.
I ran Disk Utility's First Aid and the problem never returned. I think I booted into the Recovery partition and ran it.
If that doesn't work, I'd suspect corrupted preferences and would reset those in Photoshop.
Hold down Cmd-Opt-Shift when starting Ps and delete the settings file when prompted.
JJ, I've been having a similar problems since updating to 1701.1.1 but with memory usage. I run a barebones version of PS with no add-ons at all. I noticed the latest version uses double the memory that the previous 3 versions did. My system only has 12g of system ram, but with previous versions I could run PS, LR and my email along with a web browser and the efficiency reading never went below 100%.
Now with this version if I just run LR with PS the efficiency reading dip below 60%. Pretty soon consumers will need a terabyte of ram just to load it.