Obtain GPU memory usage information for all textures in your scene

To obtain a list of file textures in your scene, and the GPU memory used for each, use the ogs command with the dt flag and gpu flag. To list all file textures in your scene, set the dt flag to value full. To list only the total amount of texture memory used, set the dt flag to value total.

ogs -gpu -dt full

ogs -gpu -dt total