---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/blog/tag/ebpf"
description: "Explore articles tagged with eBPF by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn eBPF best practices, practical tips, and in-depth guides."
title: "Umesh Malik's Blog - eBPF Articles | eBPF Tutorials"
tokens: 162
generator: "scripts/generate-page-markdown.mjs"
---

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# eBPF

1 article

 [![Two CPU pools under a sched\_ext policy: latency-critical request threads separated from background work, with a watchdog fallback to EEVDF](https://umesh-malik.com/blog/fix-eevdf-latency-regression-sched-ext-cover.png)

Web Engineering • Aug 16, 2026

### Fix EEVDF latency regressions with sched\_ext: Meta's 28% p99 win

Your p99 got worse after a kernel upgrade and nothing else changed? That is an EEVDF latency regression. Meta cut p99 28% with a two-pool sched\_ext policy.

12 min read

Read more →](https://umesh-malik.com/blog/fix-eevdf-latency-regression-sched-ext)