lllyasviel / lllyasviel/stable-diffusion-webui-forge
[Windows] Major RAM overload with flux
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Description
I have RAM overload during image generation (at the end it spikes drastically).
It starts at 2 GB, then 12 GB and then overload 50+ GB and over 30 GB disc space as fallback.
There is nothing in console - VRAM usage is over 21 GB as expected.
This is on fresh install.
I use T5xxl fp16 text encoder with fp32 Flux 1 dev model.
Below it shows 31 GB but it's over 50 GB in reality (max 64 GB):
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the report on Windows from a fresh install with the T5xxl fp16 text encoder and fp32 Flux 1 dev model. Observe RAM, VRAM, and disk usage through the end of image generation; done means the cause is identified and the generation no longer triggers the reported 50+ GB RAM and disk fallback.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100