Annotate dead max_running_requests_under_SLO (#25441)

python/sglang/srt/managers/scheduler.py

@@ -784,6 +784,7 @@ class Scheduler(
         if self.enable_metrics:
             self.metrics_collector.emit_constants(
                 max_total_num_tokens=self.max_total_num_tokens,
+                # TODO: max_running_requests_under_SLO has no setter — dead chain.
                 max_running_requests_under_SLO=getattr(
                     self, "max_running_requests_under_SLO", None
                 ),

python/sglang/srt/observability/scheduler_metrics_mixin.py

@@ -954,6 +954,7 @@ class SchedulerMetricsMixin:
         if self.disaggregation_mode == DisaggregationMode.PREFILL:
             self.stats.utilization = -1
         else:
+            # TODO: max_running_requests_under_SLO has no setter — sglang:utilization stuck at 0 (regressed #22713).
             max_under_slo = getattr(self, "max_running_requests_under_SLO", None)
             if max_under_slo is not None and max_under_slo > 0:
                 self.stats.utilization = max(