0043037f78
Load-back owner-lane eviction can need to evict a device-resident node whose radix value is a valid tail shorter than the physical tail page. The eviction planner now pads that value only to the page boundary before deriving owner counts, matching the existing write/load capacity contract without exposing padding to radix or scheduler lengths. Constraint: CP HiCache capacity remains page-owner based while radix node values remain valid-token based. Constraint: Avoid collectives; owner-lane capacity must be deterministic from local metadata and logical page ids. Rejected: Require device-resident victim values to be page-aligned | valid-tail cache nodes are now an intentional supported state. Rejected: Pad to cp_size pages | this would waste KV and violate the page-boundary-only contract. Confidence: medium Scope-risk: narrow Directive: If split-inside-tail support is added later, preserve page ownership/refcount semantics before sharing one padded physical page across radix nodes. Tested: local py_compile for hiradix_cache.py and touched CP HiCache tests. Tested: remote g0034 new C8 exact tests: 3 passed, 3 warnings. Tested: remote g0034 CP HiCache impacted suites: 146 passed, 5 warnings. Tested: remote g0034 CP shared KV C1-C5 suite: 122 passed, 5 warnings. Not-tested: full local pytest, blocked by missing runtime dependencies such as starlette. Not-tested: CUDA E2E runtime for this commit. Co-authored-by: OmX <omx@oh-my-codex.dev>
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.