[Perf] Trim redundant per-step Python work on the GDN decode and V2 spec-decode paths - #55978

Closed

gf239 wants to merge 3 commits into

vllm-project:mainfrom

gf239:perf/hotpath-trim

Commits on Sep 9, 2026

perf(mamba): trim per-call overhead on the GDN and causal_conv1d decode path

gf239
and
claude
committed
d43b7e2
perf(spec_decode): drop a redundant sum, a no-op rebase and a double slice

gf239
and
claude
committed
1fd6301
perf(v1/attn): skip KV cache groups a drafter does not own when building metadata

gf239
and
claude
committed
204bf8c