sparkring lane: temporary VLLM_LOGGING_LEVEL=DEBUG for c2-collapse diagnosis (prefill-miss trace)

recipes/mimo26-flash-mopd-4x-sparkring/recipe.toml

@@ -170,6 +170,10 @@ VLLM_LM_HEAD_A16 = "1"
 VLLM_B12X_MOE_FP4_FORCE_A16 = "0"
 VLLM_KV_CACHE_LAYOUT = "BLHNC"
 VLLM_PLUGINS = "b12x_loader,sparkring_status"
+# EXPERIMENT (c2-collapse hunt): scheduler-level logs — prefix cache
+# hit/miss + num_computed per step, to trace why the c2 pair at depth
+# re-prefills 65K instead of hitting. Drop after diagnosis.
+VLLM_LOGGING_LEVEL = "DEBUG"
 B12X_ROCE_GID_INDEX = "3"
 SPARKRING_FEATURES = ""
 SPARKRING_TOOL_CHOICE_CONTRACT = "1"