--- title: Best Pod Rightsizing Tools for Kubernetes | daily.dev description: Production Kubernetes clusters average only 8% CPU utilization in 2026, with 79% memory overprovisioning. Pod rightsizing tools fall into two categories:... canonical: https://daily.dev/posts/best-pod-rightsizing-tools-for-kubernetes-zh2efcfme twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Best Pod Rightsizing Tools for Kubernetes | daily.dev og:description: Production Kubernetes clusters average only 8% CPU utilization in 2026, with 79% memory overprovisioning. Pod rightsizing tools fall into two categories:... og:url: https://daily.dev/posts/best-pod-rightsizing-tools-for-kubernetes-zh2efcfme og:image: https://api.daily.dev/og/posts/ZH2efCFME.png og:image:alt: Best Pod Rightsizing Tools for Kubernetes og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Best Pod Rightsizing Tools for Kubernetes **[Cast AI](https://daily.dev/sources/castai)** · 15 min read · 0 upvotes · 0 comments ## Summary Production Kubernetes clusters average only 8% CPU utilization in 2026, with 79% memory overprovisioning. Pod rightsizing tools fall into two categories: recommendation-only (Goldilocks, KRR, VPA Off/Initial mode) and continuous automation (Cast AI). Goldilocks uses VPA objects to surface visual recommendations; KRR is a Python CLI querying Prometheus at p95/max; VPA offers optional eviction-based automation but fewer than 1% of orgs use Auto mode in production due to HPA conflicts and restart disruption. Cast AI is the only tool applying in-place resizing (restartless CPU changes on K8s 1.33+ with cgroup v2) with HPA awareness and live migration for stateful workloads. A decision matrix maps team profiles to tools, and a two-week trial framework with kubectl/PromQL commands is provided for evaluation. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Yes, Cast AI Optimizes at the Workload Level: How PrecisionPack Rightsizes Pods](https://daily.dev/posts/yes-cast-ai-optimizes-at-the-workload-level-how-precisionpack-rightsizes-pods-ylhlsrogx) · Cast AI · 0 upvotes · 0 comments - [Best Kubernetes VPA Alternative for Production Workloads](https://daily.dev/posts/best-kubernetes-vpa-alternative-for-production-workloads-io01y6dni) · Medium · 0 upvotes · 0 comments - [From Guesswork to Guardrails: Kubernetes Container Rightsizing](https://daily.dev/posts/from-guesswork-to-guardrails-kubernetes-container-rightsizing-qg7pjwrdl) · The New Stack · 0 upvotes · 0 comments - [Best Kubernetes Autoscaling Tools in 2026 Compared](https://daily.dev/posts/best-kubernetes-autoscaling-tools-in-2026-compared-cb2bncs0t) · Cast AI · 0 upvotes · 0 comments --- Tags: [#kubernetes](https://daily.dev/tags/kubernetes), [#finops](https://daily.dev/tags/finops) [View this post on daily.dev](https://daily.dev/posts/best-pod-rightsizing-tools-for-kubernetes-zh2efcfme) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Best Pod Rightsizing Tools for Kubernetes","url":"https://daily.dev/posts/best-pod-rightsizing-tools-for-kubernetes-zh2efcfme","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/best-pod-rightsizing-tools-for-kubernetes-zh2efcfme"},"datePublished":"2026-07-09T12:07:05.523Z","dateModified":"2026-07-09T12:07:31.599Z","description":"Production Kubernetes clusters average only 8% CPU utilization in 2026, with 79% memory overprovisioning. 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