c9a39ccdd2
Decode queue compaction receives req_to_token rows after the prefill side has already populated cached prefix slots. Cache-hit requests therefore need the extend/suffix slice, not the leading prefix slice, when building the prebuilt transfer chunk. Constraint: Prefill/decode disaggregation shares req_to_token rows across cached prefix and new suffix positions. Rejected: Keep slicing from zero | cache-hit requests would copy prefix KV locs into the prebuilt suffix chunk. Confidence: medium Scope-risk: narrow Directive: Do not change prepare_for_prebuilt slicing without testing cache-hit req_to_token layouts. Tested: python -m py_compile on changed runtime files. Not-tested: Local pytest blocked before collection by missing orjson dependency. (cherry picked from commit 416112b617fabe71e8cff7484794af73f3e84440)
Registered Tests
Tests under this directory are auto-discovered by run_suite.py via CI registration decorators.
Where Should I Put My New Test?
No server / engine launch required
| What you're testing | Directory | Requires |
|---|---|---|
| Component logic in isolation (cache, scheduler, config, parser, etc.) | unit/<module>/ |
CPU or GPU |
| CUDA kernel correctness | kernels/ |
GPU |
Server / engine launch required (E2E)
| What you're testing | Directory | Requires |
|---|---|---|
| Model inference correctness | models/, 4-gpu-models/, 8-gpu-models/ |
GPU |
| Feature-specific (OpenAI API, LoRA, speculative, distributed, VLM, etc.) | openai_server/, lora/, spec/, distributed/, ... |
GPU |
| Benchmarks (performance, accuracy, stress) | benchmark/ |
GPU |
| Platform-specific | amd/, ascend/ |
Vendor GPU |
See unit/README.md for unit test conventions.