https://www.pistack.xyz/tags/interrupt-management/ Recent content in Interrupt-Management on Pi Stack Hugo en-us Sat, 23 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-23-self-hosted-linux-interrupt-management-irqbalance-tuned-irq-affinity-guide/ Sat, 23 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-23-self-hosted-linux-interrupt-management-irqbalance-tuned-irq-affinity-guide/ <p>Hardware interrupts are the backbone of Linux system responsiveness — every network packet, disk I/O operation, and USB event triggers an interrupt request (IRQ) that the CPU must handle. On busy servers with high-throughput network interfaces, NVMe storage arrays, or multi-GPU configurations, unbalanced interrupt distribution can create CPU hotspots, increase latency, and degrade overall system performance. This guide compares three approaches to Linux interrupt management: <strong>irqbalance</strong> (automatic daemon), <strong>tuned</strong> (profile-based tuning), and <strong>manual IRQ affinity configuration</strong> (fine-grained control via <code>/proc/irq</code>).</p>