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Concurrent Lock-Free Programming

Understanding Modern Hardware

• Why we have a Memory Hierarchy Post :white_check_mark:
  • Processor registers
  • Nasm example Post #1, Post #2, General Purpose Registers Post
  • Assembler Books. Computer architecture overview, fpu registers and xmm registers.
  • Processor Cache Post #1
  • Memory Barriers
  • RAM
  • Disk
  • SSD
  • HDD
• CPU Pipelines & Instruction Processing Post #1, Branch Prediction
• Memory Ordering Buffers
• Cache Sub-Systems
• Main Memory
• PCI-e and NUMA Interconnects
• Coding Patterns for Mechanical Sympathy

Memory Models

• What is a Memory Model
• Hardware Memory Models
• Java Memory Model

Performance Testing - Modelling & Profiling

• Performance Testing Patterns
• Micro Benchmarking
• Queueing Theory, Little's, Amdahl’s, and Universal Scalability Laws
• Profiling Tools and Techniques

Advanced Concurrent Data Structures in Java

• Lock-Free Primitives
• Queues
• Executors
• Dynamic Lists
• Locks
• IPC Messaging

Applying Mechanical Sympathy

• Substituting expensive operations
• Smart Batching to amortise expensive operations
• Avoiding contention with the Single Writer Principle

The Wider Context - Putting it into Practice

• Combining techniques
• Managing Contended State
• Applying backoff strategies
• Design for making progress
• Reactive Designs & CSP

Pragmatic Performance Engineering

Understanding Modern Hardware

• CPU Pipelines & Instruction Processing
• Cache Sub-Systems
• Main Memory
• PCI-e and NUMA Interconnects
• Hard Disk Drives
• Solid State Drives
• Networking

Computing Resource Fundamentals

• Memory Latency & Throughput
• Network Latency & Throughput
• Storage Latency & Throughput
• Locks and Condition Variables

Linux Operating System Fundamentals

• Virtual Memory Management
• Scheduling
• File Systems
• Networking

Java Virtual Machine Fundamentals

• JIT Compilation
• Garbage Collectors

Performance Testing Theory

• Statistics 101
• Big O Notation & Algorithms
• Clean Room Experiments
• Realistic Test Cases
• Micro Benchmarking
• Concurrent Testing
• Service Level Testing

Profiling

• Interpreting a Profile
• CPU Utilisation
• Object Allocation and Heap Usage
• Lock Contention
• Garbage Collection
• Operating System Tracing
• Hardware Performance Counters

Development Practices

• Data Representations
• Clean Code and Anti-Patterns
• Performance Testing and CI
• Team Culture
• Getting the balance right
• Telemetry and Instrumentation