extra buffer precautions to not exhaust DMem, format better + perf history nerf

src/common/fiber.cpp

@@ -32,9 +32,6 @@ struct Fiber::FiberImpl {
     boost::context::detail::fcontext_t context{};
     boost::context::detail::fcontext_t rewind_context{};
 
-    boost::context::detail::fcontext_t context{};
-    boost::context::detail::fcontext_t rewind_context{};
-
     std::mutex guard;
     std::function<void()> entry_point;
     std::function<void()> rewind_point;

src/core/perf_stats.h

@@ -60,7 +60,11 @@ private:
     std::size_t current_index{0};
     /// Stores an hour of historical frametime data useful for processing and tracking performance
     /// regressions with code changes.
+#ifdef __OPENORBIS__
+    std::array<double, 60> perf_history{};
+#else
     std::array<double, 216000> perf_history{};
+#endif
 
     /// Point when the cumulative counters were reset
     Clock::time_point reset_point = Clock::now();