# Spark Image Load Test Summary

- Run started: 2026-05-01T03:09:12Z
- Local time: 2026-04-30 20:09:12 PDT
- Path tested: `http://192.168.12.163/api/chat` with `Host: chat.neonflux.co`
- Concurrency: 10 image models launched at once
- Prompt: Salvadoran Barbie realism prompt

## Results

| Model | Status | Wall Time (s) | API Latency (ms) | Notes |
|---|---:|---:|---:|---|
| `hfimage::black-forest-labs/FLUX.1-schnell` | success | 217.61 | 217512 | Fastest successful render |
| `hfimage::Qwen/Qwen-Image` | success | 352.14 | 352052 | Base Qwen image model completed cleanly |
| `hfimage::Qwen/Qwen-Image-Edit` | failed | 357.45 | — | Requires source image upload |
| `hfimage::black-forest-labs/FLUX.2-klein-4B` | success | 487.59 | 487464 | Completed cleanly |
| `hfimage::Tencent-Hunyuan/HunyuanDiT-v1.2-Diffusers` | failed | 499.98 | — | Failure window aligns with Spark `NV_ERR_NO_MEMORY` kernel errors |
| `hfimage::PixArt-alpha/PixArt-Sigma-XL-2-1024-MS` | success | 536.57 | 536458 | Completed cleanly |
| `hfimage::Qwen/Qwen-Image-Layered` | success | 679.47 | 679373 | Completed cleanly |
| `hfimage::stabilityai/stable-diffusion-xl-base-1.0` | success | 700.62 | 700492 | Completed cleanly |
| `hfimage::zai-org/CogView4-6B` | success | 825.30 | 825199 | Completed cleanly |
| `hfimage::black-forest-labs/FLUX.2-klein-base-4B` | success | 834.71 | 834599 | Slowest successful render |

## Spark Vitals

- Samples captured: 176
- Peak GPU utilization: 96%
- Peak GPU temperature: 74 C
- Peak power draw: 79.97 W
- Final sampled state: idle (`gpu_util_pct=0`, `temp_c=44`, `power_w=5.47`)

## GPU Fault Tracking

Searched Spark kernel logs for:
- `off the bus`
- `fallen off the bus`
- `NV_ERR`
- `NVRM`
- `Xid`
- `reset required`
- `fullchip reset`

Findings:
- No `off the bus` / `fallen off the bus` errors during this run.
- No `NV_ERR_GPU_IN_FULLCHIP_RESET` or `NV_ERR_RESET_REQUIRED` during this run.
- No Xid reset signature observed during this run.
- Repeated `NVRM: Out of memory [NV_ERR_NO_MEMORY]` messages appeared during the `Tencent-Hunyuan/HunyuanDiT-v1.2-Diffusers` failure window.

## Artifacts

- Vitals: `spark_vitals.csv`
- Per-model responses: `responses/`
- Per-model timing metadata: `meta/`
