Overview

Speed is not a feature. In High-Frequency Trading, it is the only feature. In the ruthless arena of modern financial markets, the difference between being a market maker and a market victim is measured in nanoseconds. Standard software engineering practices like garbage collection, virtual functions, and reliance on the Operating System are not just inefficiencies; they are liabilities. To compete at the cutting edge, you must stop writing code for an abstract machine and start engineering for the raw silicon. Ultra-Low Latency C++ is the definitive guide for developers who refuse to accept the overhead of the default path. Written by an expert C++ developer and HFT architect, this book bridges the vast gap between standard C++ proficiency and the extreme requirements of electronic trading. It dismantles the ""black box"" of the server, teaching you how to bypass the kernel, manipulate CPU caches, and construct lock-free architectures that operate at the speed of light. What You Will Discover Inside: This is not a theoretical textbook. It is a practical playbook filled with production-grade patterns, architectural blueprints, and deep-dive optimizations. The Physics of Speed: Understand why the speed of light and the layout of your motherboard are your primary constraints, and how to design systems that respect the ""Latency Hierarchy"" from L1 Cache to Main RAM. Kernel Bypass Networking: Stop asking the OS for permission. Master DPDK and RDMA to map network cards directly to user space, eliminating expensive system calls and context switches. Lock-Free Concurrency: Move beyond std:: mutex. Learn to build Wait-Free Ring Buffers, utilize Atomic Operations correctly, and master memory ordering to create pipelines that never stall. Hardware-Sympathetic C++: Write code that the CPU loves. Master Cache Line Alignment to defeat false sharing, use Huge Pages to eliminate TLB thrashing, and utilize SIMD intrinsics to parse market data at wire speed. Deterministic Architecture: Conquer jitter. Learn how to pin threads, isolate cores, and disable power-saving modes to ensure that your 99th percentile latency matches your average latency. Zero-Copy I/O: Eliminate the ""memcpy tax."" Learn the art of Type Punning and Scatter-Gather I/O to process data exactly where it lands in memory. Reliability at Speed: Build systems that are fast and safe. Implement pre-trade risk checks that execute in nanoseconds, and design Active-Active redundancy models with seamless failover. Who This Book Is For: Senior C++ Developers looking to transition into FinTech and HFT. Systems Engineers seeking to master performance optimization on modern hardware. Quantitative Developers who need to translate mathematical models into bare-metal code. Technical Architects designing the next generation of low-latency infrastructure. Why This Book? Most C++ books teach you how to write correct code. This book teaches you how to write fast code. It does not just explain the syntax of modern C++; it explains the cost of every instruction you write. Whether you are building a matching engine, a smart order router, or a proprietary trading strategy, the techniques in this book will give you the unfair technical advantage you need. Don't let the kernel slow you down. Master the nanosecond. Grab your copy today.

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