+ /*
+ * Because we don't use any timer in the application, we
+ * currently cannot guarantee that we have frequent
+ * events that let us detect 27-bit overflows.
+ * Therefore, for now, we force event headers
+ * to contain 64-bit timestamps.
+ */
+ ctx->rflags |= RING_BUFFER_RFLAG_FULL_TSC;
+#if 0