1 files changed, 23 insertions, 0 deletions
diff --git a/src/perf.cpp b/src/perf.cpp
new file mode 100644
index 0000000..b8f29a6
--- /dev/null
+++ b/src/perf.cpp
@@ -0,0 +1,23 @@
+#if defined DEBUG || defined PERF_DEBUG
+#include "perf.h"
+
+PERF_DATA perf;
+
+U64 last_loop = 0;
+
+void perf_loop_begin() {
+  perf.readctr = perf.writectr = 0;
+  
+  if( !last_loop ) {
+    last_loop = u_tick();
+  }
+}
+
+void perf_loop_end() {
+  U64 tick = u_tick();
+  U64 delta = last_loop - tick;
+  perf.ticks = delta;
+
+  last_loop = tick;
+}
+#endif
+\ No newline at end of file