diff --git a/src/poly/logging.cc b/src/poly/logging.cc
index 1df990281..dfbf0dcf4 100644
--- a/src/poly/logging.cc
+++ b/src/poly/logging.cc
@@ -18,6 +18,7 @@
 
 DEFINE_bool(fast_stdout, false,
             "Don't lock around stdout/stderr. May introduce weirdness.");
+DEFINE_bool(flush_stdout, true, "Flush stdout after each log line.");
 DEFINE_bool(log_filenames, false,
             "Log filenames/line numbers in log statements.");
 
@@ -82,7 +83,9 @@ void log_line(const char* file_path, const uint32_t line_number,
   OutputDebugStringA(log_buffer);
 #else
   fprintf(stdout, "%s", log_buffer);
-  fflush(stdout);
+  if (FLAGS_flush_stdout) {
+    fflush(stdout);
+  }
 #endif  // OutputDebugString
   if (!FLAGS_fast_stdout) {
     log_lock.unlock();
diff --git a/src/xenia/gpu/graphics_system.cc b/src/xenia/gpu/graphics_system.cc
index e6803eb1c..bb64d0e44 100644
--- a/src/xenia/gpu/graphics_system.cc
+++ b/src/xenia/gpu/graphics_system.cc
@@ -56,8 +56,8 @@ void GraphicsSystem::DispatchInterruptCallback(uint32_t source, uint32_t cpu) {
     cpu = 2;
   }
 
-  XELOGGPU("Dispatching GPU interrupt at %.8X w/ mode %d on cpu %d",
-           interrupt_callback_, source, cpu);
+  // XELOGGPU("Dispatching GPU interrupt at %.8X w/ mode %d on cpu %d",
+  //         interrupt_callback_, source, cpu);
 
   // NOTE: we may be executing in some random thread.
   uint64_t args[] = {source, interrupt_callback_data_};