Sampler Scheduler Metrics Tester for ComfyUI

By ICAI Icelandic Center for Artificial IntelligenceView on GitHub →

This custom node for ComfyUI allows you to test combinations of samplers and schedulers. It generates a batch of generated images(latents), as well as RGB images, each one annotated with the specific combination used, performance timing, and several image quality metrics (Laplacian Variance, Gradient Mean, FFT-based sharpness) for our internal usage, but kept as they could may be useful for others to.

How much VRAM does Sampler Scheduler Metrics Tester for ComfyUI require?

Direct Answer: The ComfyUI node Sampler Scheduler Metrics Tester for ComfyUI requires a minimum base VRAM of 128MB and is optimized for GPUs with at least 4GB of VRAM. Low VRAM mode is fully supported for resource-constrained setups.

High (2-4GB)
Base VRAM:
128MB (0.1GB)
Recommended GPU:
4GB+ VRAM
Low VRAM Mode:
✓ Supported
Estimation Confidence:
MEDIUM

Interactive VRAM Compatibility Estimator

Estimated Total VRAM: 3.00 GBTarget: 8 GB
✅ Comfortable Fit

Your GPU has plenty of headroom. You can run this node safely with your active configurations!

Deploy on High-Performance GPUs

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🚀 Deploy on Vast.ai

Deploy on Cloud GPUs

Need more VRAM to run ComfyUI with this node? Rent low-cost, high-performance cloud GPUs on RunPod instantly.

🚀 Deploy on RunPod

What Python packages are required for Sampler Scheduler Metrics Tester for ComfyUI?

Direct Answer: Running Sampler Scheduler Metrics Tester for ComfyUI requires installing the following Python package dependencies: opencv-python>=4.11.0.86, opencv_python_headless>=4.11.0.86. Ensure your ComfyUI environment has these packages active before launching.

requirements.txt
opencv-python>=4.11.0.86
opencv_python_headless>=4.11.0.86

Interactive Setup & Dependency Resolver

Operating System:
Environment Type:
Run this terminal command in your ComfyUI root folder:
# Loading command...

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Frequently Asked Questions

How much VRAM does Sampler Scheduler Metrics Tester for ComfyUI require?

Sampler Scheduler Metrics Tester for ComfyUI requires a minimum of 128MB (0.1GB) of VRAM for base operation. For optimal performance, a GPU with at least 4GB of VRAM is recommended. This node supports low VRAM mode for resource-constrained setups.

Can I run Sampler Scheduler Metrics Tester for ComfyUI on an RTX 3060, RTX 4070, or RTX 4090?

✅ RTX 3060 (12GB): Yes, fully compatible with 10.7GB headroom. ✅ RTX 4070 (12GB): Yes, fully compatible with 10.7GB headroom. ✅ RTX 4070 Ti (16GB): Yes, fully compatible with 14.3GB headroom. ✅ RTX 4090 (24GB): Yes, fully compatible with 21.5GB headroom

What Python packages are required for Sampler Scheduler Metrics Tester for ComfyUI?

To run Sampler Scheduler Metrics Tester for ComfyUI, you need to install: opencv-python>=4.11.0.86, opencv_python_headless>=4.11.0.86. You can install these using pip or add them to your requirements.txt file.

How can I reduce VRAM usage when running Sampler Scheduler Metrics Tester for ComfyUI?

Sampler Scheduler Metrics Tester for ComfyUI supports low VRAM mode. To reduce memory usage: (1) Enable --lowvram or --medvram flags in ComfyUI, (2) Reduce batch size to 1, (3) Use fp16 or fp8 precision if supported, (4) Close other GPU applications.

How do I install Sampler Scheduler Metrics Tester for ComfyUI in ComfyUI?

To install Sampler Scheduler Metrics Tester for ComfyUI: (1) Navigate to your ComfyUI/custom_nodes directory, (2) Clone the repository: git clone https://github.com/IcelandicCenterArtificialIntelligence/ComfyUI-SamplerSchedulerMetricsTester, (3) Install dependencies: pip install -r requirements.txt (if present), (4) Restart ComfyUI. Alternatively, use ComfyUI Manager for one-click installation.