diff --git a/src/main/java/com/kamco/cd/training/common/service/GpuDmonReader.java b/src/main/java/com/kamco/cd/training/common/service/GpuDmonReader.java
index 0d41d33..00ea055 100644
--- a/src/main/java/com/kamco/cd/training/common/service/GpuDmonReader.java
+++ b/src/main/java/com/kamco/cd/training/common/service/GpuDmonReader.java
@@ -97,23 +97,32 @@ public class GpuDmonReader {
 
       while ((line = br.readLine()) != null) {
 
-        // 헤더 라인 제거 (# 으로 시작)
+        // 디버깅 로그
+        log.info("RAW: [{}]", line);
+
+        // 헤더 제거
         if (line.startsWith("#")) continue;
 
-        // 공백 기준 분리
-        String[] parts = line.trim().split("\\s+");
+        line = line.trim();
+        if (line.isEmpty()) continue;
 
-        // 최소 index, util 있어야 함
-        if (parts.length < 3) continue;
+        String[] parts = line.split("\\s+");
+
+        // GPU index 확인
+        if (!parts[0].matches("\\d+")) continue;
 
-        // GPU index (0,1,2...)
         int index = Integer.parseInt(parts[0]);
 
-        // GPU 사용률 (%)
-        int util = Integer.parseInt(parts[1]);
+        int util = 0;
+        try {
+          util = Integer.parseInt(parts[1]); // sm 값
+        } catch (Exception e) {
+          continue;
+        }
 
-        // 최신 값으로 덮어쓰기
         gpuUtilMap.put(index, util);
+        // GPU 값 들어오는지 확인 디버깅
+        log.info("GPU UPDATE → index={}, util={}", index, util);
       }
     }
 
diff --git a/src/main/java/com/kamco/cd/training/common/service/SystemMonitorService.java b/src/main/java/com/kamco/cd/training/common/service/SystemMonitorService.java
index e3c7517..633c7c2 100644
--- a/src/main/java/com/kamco/cd/training/common/service/SystemMonitorService.java
+++ b/src/main/java/com/kamco/cd/training/common/service/SystemMonitorService.java
@@ -47,6 +47,8 @@ public class SystemMonitorService {
   // =========================
   @Scheduled(fixedRate = 1000)
   public void collect() {
+    // 디버깅용
+    log.info("collect instance = {}", this);
     try {
 
       // =====================