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HFT Core Systems

HFT CORE SYSTEMS

CPU isolation as a system configuration

Lesson 23 of 96Phase 03: Linux determinism
Video lesson coming soon

The written objectives and hands-on lab are available now.

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Learning objectives

What you should understand

  1. Separate application affinity from true CPU isolation
  2. Coordinate kernel, IRQ and housekeeping placement
  3. Verify isolation instead of trusting boot flags

Lab

Hands-on exercise

Draft and validate a reversible isolated-CPU profile.

Deliverable

Evidence of completion

A host configuration diff with verification commands and rollback plan.

Prerequisite
EP 22

Phase 03

Linux determinism

Full curriculum
21Scheduler classes and real-time hazards22Affinity, topology, SMT, and migration23CPU isolation as a system configuration24Interrupts, NAPI, softirqs, and NIC queues25Memory locking and prefaulting26Power management, turbo, C-states, and thermal behavior27Finding OS noise with rtla, ftrace, and perf28System calls and context switches are different things29Shared memory IPC with explicit ownership30cgroup v2, cpusets, memory nodes, and least privilege31Asynchronous logging: page cache, direct I/O, and io_uring32Phase gate: reproducible low-jitter host profile