60 lines
3.3 KiB
Markdown
60 lines
3.3 KiB
Markdown
# 01 — Lock the safetensors-versus-GGUF performance contract
|
|
|
|
Status: done
|
|
|
|
## Mandatory fresh-session context
|
|
|
|
- Read [RALPH-CONTEXT.md](../RALPH-CONTEXT.md) completely before changing code.
|
|
- This issue is `DGR-001` in [prd.json](../prd.json).
|
|
- Read the evidence README for every dependency listed below.
|
|
- Inspect current code and `git status`; historical text and previous agent claims are not evidence.
|
|
|
|
## Description
|
|
|
|
As a runtime engineer, I need a controlled baseline so that GGUF work proceeds from measured speed, memory, and quality rather than reputation.
|
|
|
|
## Expected durable outputs
|
|
|
|
- Benchmark harness and deterministic tests
|
|
- evidence/DGR-001/performance-contract.json
|
|
- Raw and summarized safetensors/GGUF benchmark evidence
|
|
|
|
## Acceptance criteria
|
|
|
|
- [ ] Benchmark the same model architecture/revision, machine, prompts, context lengths, output lengths, sampling policy, and concurrency across the current Transformers/safetensors recipe and whole-model llama.cpp recipes.
|
|
- [ ] Separate correctness/quality lanes from quantized performance/fit lanes instead of claiming BF16 and Q4 are numerically equivalent.
|
|
- [ ] Report TTFT, prefill tok/s, decode tok/s, p50/p95 latency, aggregate throughput, RSS, VRAM, artifact size, failures, and output drift in machine-readable JSON.
|
|
- [ ] Add concurrency levels 1 and 4 where memory permits.
|
|
- [ ] Write a versioned performance contract consumed by later release gates, including an explicit stop condition when llama.cpp/GGUF has no meaningful speed or fit benefit.
|
|
- [ ] Targeted pytest tests pass
|
|
- [ ] python -m compileall packages tests passes for Python changes
|
|
- [ ] git diff --check passes
|
|
- [ ] Default tests remain deterministic, model-download-free, API-credit-free, and GPU-free
|
|
- [ ] Full deterministic pytest -q passes, or the exact pre-existing unrelated failure is recorded with a clean-tree reproduction
|
|
- [ ] Real-model execution is opt-in through MESHNET_ENABLE_REAL_INFERENCE_TESTS=1 and records exact artifact/runtime/hardware evidence
|
|
- [ ] Model artifacts remain on the configured mounted-drive storage and never under /home
|
|
- [ ] Read .scratch/distributed-gguf-runtime/RALPH-CONTEXT.md and this story issue completely before changing code
|
|
- [ ] Read and verify every dependency evidence README before relying on dependency behavior
|
|
- [ ] Preserve all pre-existing working-tree changes and stage only files belonging to this story
|
|
- [ ] Write .scratch/distributed-gguf-runtime/evidence/DGR-001/README.md with files changed, exact commands and real results, limitations, compatibility notes, and dependent-story handoff
|
|
- [ ] Update only this story issue to Status: done after every acceptance criterion and quality gate passes
|
|
|
|
## Dependency handoff
|
|
|
|
- None. This story may start immediately.
|
|
|
|
## Finish contract
|
|
|
|
- Create the task evidence directory and durable handoff required above.
|
|
- Preserve real failures and blockers; never fabricate benchmark, model, test or hardware output.
|
|
- Change this issue to `Status: done` only after all criteria pass.
|
|
- Emit `<promise>COMPLETE</promise>` only after the evidence handoff exists.
|
|
|
|
## References
|
|
|
|
- [Ralph execution context](../RALPH-CONTEXT.md)
|
|
- [PRD](../PRD.md)
|
|
- [Implementation strategy](../implementation-strategy.md)
|
|
- [Current architecture](../architecture.md)
|
|
- [Architecture decision](../ADR-0020-distributed-gguf-runtime.md)
|