What this PR does / why we need it?
test device allocator/camem and mutistream/layers contains resource
allocation and stream ops
Does this PR introduce any user-facing change?
N/A
How was this patch tested?
CI passed with new added test.
- vLLM version: v0.10.0
- vLLM main:
2836dd73f1
Signed-off-by: 1024daniel <xxltju324@gmail.com>