after closing them and purging all memory Photoshop does not liberate RAM. Only closing Photoshop will liberate Ram
Just so it's clear - this is normal behavior, as designed. Calling the OS for memory every time it's needed will slow things down. The OS can still reclaim the memory if it's needed elsewhere, so it's not a brick wall.
PS use of RAM grows progressively to maximum Ram (10, 8 GB of 16 GB), while simply idling
This, however, is obviously not normal. This qualifies as a memory leak, and that can have several causes. Third-party plugins is a common culprit, so try to disable any plugins you may have first.
This has nothing to do with Win 7. I have CC2017 on Win 7 myself, and I have never had anything like this. So it must be something specific to your system. The question is what.
Thanks for your response.
Knowing that the residual memory hog issue is a deliberate design I won’t waste any more time trying to fix it. I have to say I can’t for the life of me understand why this would be deliberate. The fact that the OS can veto this is little consolation to me compared to the fact that After Effects and Premiere can’t. There was a time, somewhere around CS6 where working between Adobe products was seamless and effortless, but it is no longer the case for me.
As for PS progressive memory consumption, I have no third party plugins, but this won’t be a problem for me if I’m shutting down Photoshop anyway every 15 minutes to open up AE or Premiere.
Thanks for your help
This is all according to senior engineer Chris Cox who used to post here (but now apparently quit the company).
Anyway, memory consumption increasing without any activity is not normal. That's a memory leak. There is something wrong here.
As for other applications, standard procedure among experienced Photoshop hands is to never set the memory allocation too high in Preferences. Always leave enough for other applications and OS processes.
Naively I thought I could control memeory allocation by closing files. The reason I let photoshop have 75% is to keep it off the scratch disk. With only a few files open it’s easily using 10GB of RAM. As I said before it seems to me there was a magic moment when processor speed, RAM, and program consumption found a sweet spot around 6 to 8 years ago.
I don’t have a “60” folder in the Adobe folder of the HKEY_CURRENT_SOFTWARE REGESTRY entry and have no recollection of having installed a third party plugin. So the increase of memory comsumption remains a mystery.
Can I assume that my troubles with Dreaweaver are not normal and could also point to this mysterious local memory parasite? Could this also be due to over allocating memory to Photoshop?