--- title: Linux 7.0 Adds A New Minor Performance Optimization... description: Eric Dumazet of Google has merged a patch into Linux 7.0 that converts epoll's epoll_put_uevent() function to use scoped user access, a feature introduced in... canonical: https://daily.dev/posts/linux-7-0-adds-a-new-minor-performance-optimization-shown-with-amd-zen-2-cpus-5zzpjidx0 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Linux 7.0 Adds A New Minor Performance Optimization Shown With AMD Zen 2 CPUs | daily.dev og:description: Eric Dumazet of Google has merged a patch into Linux 7.0 that converts epoll's epoll_put_uevent() function to use scoped user access, a feature introduced in... og:url: https://daily.dev/posts/linux-7-0-adds-a-new-minor-performance-optimization-shown-with-amd-zen-2-cpus-5zzpjidx0 og:image: https://api.daily.dev/og/posts/5zzpjidX0.png og:image:alt: Linux 7.0 Adds A New Minor Performance Optimization Shown With AMD Zen 2 CPUs 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. # Linux 7.0 Adds A New Minor Performance Optimization Shown With AMD Zen 2 CPUs **[Phoronix](https://daily.dev/sources/phoronix)** · 2 min read · 0 upvotes · 0 comments ## Summary Eric Dumazet of Google has merged a patch into Linux 7.0 that converts epoll's epoll_put_uevent() function to use scoped user access, a feature introduced in Linux 6.19. The change saves two function calls and eliminates a stac/clac instruction pair, which is costly on older CPUs. Benchmarks on AMD Zen 2 hardware show approximately a 1.5% improvement in network packets per second. The optimization benefits all CPU families but is especially impactful on older generations where speculation barrier costs are higher. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Linux 7.2 Showing Some Unexpected & Nice Performance Gains On AMD EPYC Sorano](https://daily.dev/posts/linux-7-2-showing-some-unexpected-nice-performance-gains-on-amd-epyc-sorano-rhg5o7iuf) · Phoronix · 0 upvotes · 0 comments - [AMD EPYC Server Performance Up ~8% Geo Mean For 2026 With Linux Kernel Improvements](https://daily.dev/posts/amd-epyc-server-performance-up-8-geo-mean-for-2026-with-linux-kernel-improvements-k3tsgae3t) · Phoronix · 0 upvotes · 0 comments - [New Linux Patches Tune AMD Ryzen Zen 6 To Optimize Performance & Power Consumption](https://daily.dev/posts/new-linux-patches-tune-amd-ryzen-zen-6-to-optimize-performance-power-consumption-omlxtgrag) · Phoronix · 0 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#linux](https://daily.dev/tags/linux), [#amd](https://daily.dev/tags/amd) [View this post on daily.dev](https://daily.dev/posts/linux-7-0-adds-a-new-minor-performance-optimization-shown-with-amd-zen-2-cpus-5zzpjidx0) ```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":"Linux 7.0 Adds A New Minor Performance Optimization Shown With AMD Zen 2 CPUs","url":"https://daily.dev/posts/linux-7-0-adds-a-new-minor-performance-optimization-shown-with-amd-zen-2-cpus-5zzpjidx0","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/linux-7-0-adds-a-new-minor-performance-optimization-shown-with-amd-zen-2-cpus-5zzpjidx0"},"datePublished":"2026-03-08T01:28:57.074Z","dateModified":"2026-03-08T01:31:31.678Z","description":"Eric Dumazet of Google has merged a patch into Linux 7.0 that converts epoll's epoll_put_uevent() function to use scoped user access, a feature introduced in...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/40c2edcd69d40657cd45e47d3964cfb1?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/40c2edcd69d40657cd45e47d3964cfb1?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Phoronix","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Phoronix","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/6a26ba379dd64932830aa0c9803dd7ee","url":"https://daily.dev/sources/phoronix"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/linux-7-0-adds-a-new-minor-performance-optimization-shown-with-amd-zen-2-cpus-5zzpjidx0","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"performance,linux,amd","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Phoronix","item":"https://daily.dev/sources/phoronix"},{"@type":"ListItem","position":3,"name":"Linux 7.0 Adds A New Minor Performance Optimization Shown With AMD Zen 2 CPUs"}]} ```