Optimum SDXL Usage

Here's a quick listing of things to tune for your setup:

Commandline arguments:

• (nvidia) 8gb --medvram-sdxl --xformers
• (nvidia) 12gb+ --xformers
• (nvidia) 4gb --lowvram --xformers

System:

• downgrade nvidia drivers to 531 or lower prevent extreme slowdowns for largest pictures
• add a pagefile to prevent failure to load weights due to low cpu ram
• (Linux) install tcmalloc - greatly reducing ram usage: sudo apt install --no-install-recommends google-perftools #10117
• use an SSD, for faster loadtime, especially if a pagefile is required
• converting .safetensors to .ckpt for reduced ram usage #12086

Model weights:

• use vae that will not need to run in fp32 for increased speed and less vram usage: sdxl_vae.safetensors
• use fp16 (~7gb) weights for less cpu ram usage