From b65c9889a0dc19a297f9eab13a4c6aae5194dcdb Mon Sep 17 00:00:00 2001
From: fzyzcjy <5236035+fzyzcjy@users.noreply.github.com>
Date: Sat, 3 Jan 2026 20:49:54 +0800
Subject: [PATCH] Fix incorrect running batch size in prefill stats (#15941)

---
 python/sglang/srt/managers/scheduler.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/python/sglang/srt/managers/scheduler.py b/python/sglang/srt/managers/scheduler.py
index b45360e9f..2b6f078c6 100644
--- a/python/sglang/srt/managers/scheduler.py
+++ b/python/sglang/srt/managers/scheduler.py
@@ -2073,7 +2073,12 @@ class Scheduler(
 
         # Print stats
         if self.current_scheduler_metrics_enabled:
-            self.log_prefill_stats(adder, can_run_list, running_bs, 0)
+            self.log_prefill_stats(
+                adder,
+                can_run_list,
+                running_bs=len(self.running_batch.reqs),
+                running_bs_offline_batch=0,
+            )
 
         # Record metrics
         for req in can_run_list: