![[High-Performance C++ Engine #1] Why Legacy Win32/MFC Trading Systems Freeze at the 9:00 AM Market Open](/images/cpp_hts_market_data_engine_series/img_part1_legacy_hts_ui_freezing_bottlenecks.webp)
Why Legacy Win32/MFC Trading Systems Freeze at the 9:00 AM Market Open
An architectural dissection of why multi-decade Win32/MFC desktop trading platforms suffer from severe UI freezing during the 09:00 AM market open packet surge.
Posts 77
Chronological index of published articles, technical notes, and essays in Posts.
![[High-Performance C++ Engine #2] Zero-Mutex Market Data Engine — Symbol Hash Sharding & Lock-Free RCU/CoW](/images/cpp_hts_market_data_engine_series/img_part2_sharded_ingestion_lockfree_rcu.webp)
Zero-Mutex Market Data Engine — Symbol Hash Sharding & Lock-Free RCU/CoW
How we implemented symbol-hash worker sharding and Lock-Free Read-Copy-Update (RCU) snapshot slots with Copy-on-Write so tens of thousands of real-time mar…
![[High-Performance C++ Engine #3] Multi-Exchange (Primary + ATS) Real-Time 10-Level OrderBook Synthesis & Out-of-Order Determinism](/images/cpp_hts_market_data_engine_series/img_part3_multi_exchange_state_projection.webp)
Multi-Exchange (Primary + ATS) Real-Time 10-Level OrderBook Synthesis & Out-of-Order Determinism
How we deterministically synthesize Primary Exchange and Alternative Exchange (ATS) orderbooks in real time, and prevent out-of-order races between Expecte…
![[High-Performance C++ Engine #4] Let the UI Thread Only Paint — ScreenWorker Background Formatting & 64MB Ring-Buffer Virtual Grid](/images/cpp_hts_market_data_engine_series/img_part4_screen_worker_virtual_grid.webp)
Let the UI Thread Only Paint — ScreenWorker Background Formatting & 64MB Ring-Buffer Virtual Grid
How we offloaded 28 display field formatting operations to background ScreenWorkers with Double Dirty Coalescing, built an O(1) 64MB ring-buffer VirtualGri…
![[High-Performance C++ Engine #5] 1% CPU & 1-Second Lag War Stories (Message Storms, ActiveX Batching, 60-Cell Clipping)](/images/cpp_hts_market_data_engine_series/img_part5_micro_optimizations_troubleshooting.webp)
1% CPU & 1-Second Lag War Stories (Message Storms, ActiveX Batching, 60-Cell Clipping)
How we hunted down and eliminated three subtle production bottlenecks—423/s Win32 message storms, ActiveX COM per-cell redraw overhead, and a 1-second quot…
![[High-Performance C++ Engine #6] Production Scorecard (UI Freeze 1,531ms → 15ms) & Zero-Downtime Dual-Path Rollout](/images/cpp_hts_market_data_engine_series/img_part6_production_metrics_dual_path.webp)
Production Scorecard (UI Freeze 1,531ms → 15ms) & Zero-Downtime Dual-Path Rollout
The complete 540-second market open benchmark scorecard comparing AS-IS vs. TO-BE, alongside our Dual-Path rollout architecture and engineering lessons fro…
![[Cross-Platform DevLog #1] Rebuilding an Abandoned Pomodoro App — Why 'Lo-Fi Focus Studio' and 'Focus-to-Earn'?](/images/pomodoro_v2_devlog_series/slide1.webp)
Rebuilding an Abandoned Pomodoro App — Why 'Lo-Fi Focus Studio' and 'Focus-to-Earn'?
How we tore down a neglected v1.0 white-screen timer app and rebuilt So Simple Pomodoro v2.0 across Android, iOS, watchOS, and Wear OS with a dark Lo-Fi Fo…
![[Cross-Platform DevLog #2] Balancing Monetization and Fairness — Rewarded Ads & a 4-Layer Anti-Abuse Architecture](/images/pomodoro_v2_devlog_series/slide2.webp)
Balancing Monetization and Fairness — Rewarded Ads & a 4-Layer Anti-Abuse Architecture
How we designed a zero-interruption opt-in Google AdMob rewarded ad model and engineered a 4-layer anti-abuse defense pipeline spanning client wall-clock v…
![[Cross-Platform DevLog #3] "Synthetic Audio Sounds Fake" — Adopting Google Studio Field Recordings & a Multi-Channel Ambient Mixer](/images/pomodoro_v2_devlog_series/slide3.webp)
"Synthetic Audio Sounds Fake" — Adopting Google Studio Field Recordings & a Multi-Channel Ambient Mixer
Why we scrapped two iterations of mathematical PCM white-noise synthesis (24MB WAVs & loop gaps) in favor of 3.1MB Google Actions Sound Library OGG field r…
![[Cross-Platform DevLog #4] Bypassing the iOS 26 JIT Memory Protection Crash & Crafting the Apple Watch Series 10 Circular UI](/images/pomodoro_v2_devlog_series/slide4.webp)
Bypassing the iOS 26 JIT Memory Protection Crash & Crafting the Apple Watch Series 10 Circular UI
How we diagnosed and bypassed the iOS 26.3.1 real-device Flutter Debug JIT crash (EXC_BAD_ACCESS / SIGKILL / brk #0xf00d caused by Apple's TXM kernel monit…