Optimum SDXL Usage

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

Commandline arguments:

• Nvidia (12gb+) --xformers
• Nvidia (8gb) --medvram-sdxl --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 loading weights due to low RAM.
• (Linux) install tcmalloc, greatly reducing RAM usage: sudo apt install --no-install-recommends google-perftools (#10117).
• Use an SSD for faster load time, especially if a pagefile is required.
• Convert .safetensors to .ckpt for reduced RAM usage (#12086).

Model weights:

• Use a VAE that will not need to run in fp32 for increased speed and less VRAM usage: sdxl_vae.safetensors.
• Use TAESD.
• Use fp16 weights (~7gb) for less RAM usage.