How i can limited a photoshop's cache? He killed about a 120gb for a cache few days ago. It's crazy. I need to what? Buy a couple of TB for a comfort work? Heh..
How much space Photoshop's cache takes on the hard drive depends on the size of the project you're working on. If you work on big size projects, then make sure that you have enough free space on the hard drive. You can also optimize the cache by following the steps mentioned here: https://helpx.adobe.com/photoshop/kb/optimize-photoshop-cc-performance.html#preferences