---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/blog/tag/infrastructure"
description: "Explore articles tagged with Infrastructure by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn Infrastructure best practices, practical tips, and in-depth guides."
title: "Umesh Malik's Blog - Infrastructure Articles | Infrastructure Tutorials"
tokens: 582
generator: "scripts/generate-page-markdown.mjs"
---

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# Infrastructure

4 articles

 [![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)

 [![The five feature-flagged phases of a zero-downtime datastore migration, from dual writes through shadow reads to cutover](https://umesh-malik.com/blog/zero-downtime-database-migration-dual-writes-cover.png)

Web Engineering • Aug 16, 2026

### Zero downtime database migration: 5 flags and a 17x P90 gap

A zero downtime database migration is five feature-flagged phases, not a cutover. P95 said 4x slower, P90 said 17x, and the comparison code took a region down.

12 min read

Read more →](https://umesh-malik.com/blog/zero-downtime-database-migration-dual-writes)

 [![The four integration seams a cloud provider fills for Kubernetes, and what you must build yourself on bare metal](https://umesh-malik.com/blog/kubernetes-on-bare-metal-cloud-integrations-cover.png)

Web Engineering • Aug 14, 2026

### Kubernetes on bare metal: the 4 cloud integrations you must build

Run Kubernetes on bare metal and four integrations become yours: node identity, LoadBalancer IPs, provisioning, storage. Oxide shipped three; one is blocked.

10 min read

Read more →](https://umesh-malik.com/blog/kubernetes-on-bare-metal-cloud-integrations)

 [![Docker Swarm versus Kubernetes cost comparison: $166 per year simple setup versus $200K complex infrastructure](https://umesh-malik.com/blog/docker-swarm-vs-k8s-cover.png)

Web Engineering • Feb 17, 2026

### Docker Swarm vs Kubernetes: $166/yr Beats a $200K Cluster

Docker Swarm vs Kubernetes: a live SaaS runs for $166/year with zero crashes in 10 years, while the average Kubernetes cluster wastes 87% of its CPU.

20 min read

Read more →](https://umesh-malik.com/blog/docker-swarm-vs-kubernetes-166-dollar-reality-check)