fix warning (#45870)

paddle/fluid/memory/allocation/system_allocator.cc

@@ -111,15 +111,14 @@ void CPUAllocator::Free(void* p, size_t size, size_t index) {
     munlock(p, size);
 #endif
   }
+  HOST_MEMORY_STAT_UPDATE(Reserved, 0, -size);
+  platform::RecordMemEvent(
+      p, CPUPlace(), size, platform::TracerMemEventType::ReservedFree);
 #ifdef _WIN32
   _aligned_free(p);
 #else
   free(p);
 #endif
-
-  HOST_MEMORY_STAT_UPDATE(Reserved, 0, -size);
-  platform::RecordMemEvent(
-      p, CPUPlace(), size, platform::TracerMemEventType::ReservedFree);
 }
 
 bool CPUAllocator::UseGpu() const { return false; }

paddle/fluid/platform/profiler/chrometracing_logger.cc

@@ -546,10 +546,10 @@ void ChromeTracingLogger::HandleTypeMemset(
 }
 
 void ChromeTracingLogger::StartLog() {
-  output_file_stream_ << string_format(std::string(
+  output_file_stream_ << std::string(
       R"JSON(
   { 
-    "displayTimeUnit": "ms",)JSON"));
+    "displayTimeUnit": "ms",)JSON");
 }
 
 void ChromeTracingLogger::LogMetaInfo(const std::string& version,