Is Photoshop (on OSX) coded to utilize more than 2 GB of memory?
Unfortunately, no. Photoshop is still stuck in a 2 GB world
Quote:
Here's the amount of RAM (per the Pshop Memory Use prefernce panel) shown on this system after a clean boot (can vary depending on what addons are running/installed in OS X. Also varies a bit after running the script, even after the image is closed)
* 512MB RAM - 50% setting = 222MB
* 512MB RAM - 90% setting = 399MB
* 1.5GB RAM - 50% setting = 686MB
* 1.5GB RAM - 90% setting = 1235MB
* 2.0GB RAM - 50% setting = 934MB
* 2.0GB RAM - 90% setting = 1643MB
* 4.0GB RAM - 100% setting = 1807MB
* 8.0GB RAM - 100% setting = 1678MB
Again the reason the max RAM shown in PhotoShop's preference panel is less with 8GB installed than with 4GB is probably due to the OS using a larger cache with more RAM installed, but it would be nice if you could at least use/select all 2GB when you have much more RAM installed. Even PShop's limit of recognizing 2GB (max) of RAM, there is a benefit to having more than 2GB of RAM in the system - at least if you work with larger images and/or run more than one application at a time.
