--- title: PHP 7.4 To PHP 8.6 Benchmarks, PHP 8.6 JIT Performance description: Fresh PHP performance benchmarks compare PHP 7.4 through the current Git state of PHP 8.6, run on an Intel Xeon system with Fedora 44. PHPbench showed gradual... canonical: https://daily.dev/posts/php-7-4-to-php-8-6-benchmarks-php-8-6-jit-performance-ribwvqfvn twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: PHP 7.4 To PHP 8.6 Benchmarks, PHP 8.6 JIT Performance | daily.dev og:description: Fresh PHP performance benchmarks compare PHP 7.4 through the current Git state of PHP 8.6, run on an Intel Xeon system with Fedora 44. PHPbench showed gradual... og:url: https://daily.dev/posts/php-7-4-to-php-8-6-benchmarks-php-8-6-jit-performance-ribwvqfvn og:image: https://api.daily.dev/og/posts/rIBwVqFVN.png og:image:alt: PHP 7.4 To PHP 8.6 Benchmarks, PHP 8.6 JIT Performance 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. # PHP 7.4 To PHP 8.6 Benchmarks, PHP 8.6 JIT Performance **[Phoronix](https://daily.dev/sources/phoronix)** · 2 min read · 9 upvotes · 0 comments ## Summary Fresh PHP performance benchmarks compare PHP 7.4 through the current Git state of PHP 8.6, run on an Intel Xeon system with Fedora 44. PHPbench showed gradual gains across PHP 8.x releases, but PHP 8.6 Git was regressing versus PHP 8.5, expected to be resolved before the stable 8.6.0 release later in 2026. A separate self-test showed no such regression, with PHP 8.6's JIT providing a slight additional boost. Older PHP7/PHP5 releases were excluded because they segfaulted when built with GCC 16. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Does PHP 8.6 show a performance regression compared to PHP 8.5? In PHPbench testing, the current Git state of PHP 8.6 was regressing relative to PHP 8.5, though this is expected to be resolved before the stable PHP 8.6.0 release later in 2026. A separate self-test benchmark did not show this regression, instead showing PHP 8.5 and newer performing well with incremental gains, and JIT giving a slight additional boost on PHP 8.6. _Track PHP 8.6 performance changes as the release approaches on daily.dev._ ### Why were older PHP7 and PHP5 versions excluded from a PHP performance comparison against PHP 8.6? Older, unsupported PHP releases were segfaulting when built with a modern GCC 16 compiler toolchain, so PHP 7.4 was the oldest version usable in a benchmark comparison against PHP 8.x releases through the current PHP 8.6 Git branch. All tested versions were built from the same compiler toolchain on Fedora 44 for consistency. _Developers weighing PHP upgrade paths can follow build compatibility issues like this on daily.dev._ ## Similar posts on daily.dev - [PHP in 2026](https://daily.dev/posts/php-in-2026-lsdo240ed) · stitcher.io · 123 upvotes · 3 comments - [How PHP generates machine code](https://daily.dev/posts/how-php-generates-machine-code-zwfynbekr) · PHPUnit Expert · 14 upvotes · 1 comments - [PHP 8.6.0alpha1 is available for testing](https://daily.dev/posts/php-8-6-0alpha1-is-available-for-testing-sip1w3dlw) · externals.io · 0 upvotes · 0 comments - [PHP version stats: July, 2026](https://daily.dev/posts/php-version-stats-july-2026-cevzmnzrv) · stitcher.io · 7 upvotes · 0 comments --- Tags: [#php](https://daily.dev/tags/php), [#compiler-optimization](https://daily.dev/tags/compiler-optimization) [View this post on daily.dev](https://daily.dev/posts/php-7-4-to-php-8-6-benchmarks-php-8-6-jit-performance-ribwvqfvn) ```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":"PHP 7.4 To PHP 8.6 Benchmarks, PHP 8.6 JIT Performance","url":"https://daily.dev/posts/php-7-4-to-php-8-6-benchmarks-php-8-6-jit-performance-ribwvqfvn","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/php-7-4-to-php-8-6-benchmarks-php-8-6-jit-performance-ribwvqfvn"},"datePublished":"2026-08-19T10:45:54.214Z","dateModified":"2026-09-14T08:45:40.022Z","description":"Fresh PHP performance benchmarks compare PHP 7.4 through the current Git state of PHP 8.6, run on an Intel Xeon system with Fedora 44. PHPbench showed gradual...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c150f11ac8b1daacb6126d3ed6357728?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c150f11ac8b1daacb6126d3ed6357728?_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/php-7-4-to-php-8-6-benchmarks-php-8-6-jit-performance-ribwvqfvn","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":9},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"php,compiler-optimization","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":"PHP 7.4 To PHP 8.6 Benchmarks, PHP 8.6 JIT Performance"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/php-7-4-to-php-8-6-benchmarks-php-8-6-jit-performance-ribwvqfvn#faq","mainEntity":[{"@type":"Question","name":"Does PHP 8.6 show a performance regression compared to PHP 8.5?","acceptedAnswer":{"@type":"Answer","text":"In PHPbench testing, the current Git state of PHP 8.6 was regressing relative to PHP 8.5, though this is expected to be resolved before the stable PHP 8.6.0 release later in 2026. A separate self-test benchmark did not show this regression, instead showing PHP 8.5 and newer performing well with incremental gains, and JIT giving a slight additional boost on PHP 8.6. Track PHP 8.6 performance changes as the release approaches on daily.dev."}},{"@type":"Question","name":"Why were older PHP7 and PHP5 versions excluded from a PHP performance comparison against PHP 8.6?","acceptedAnswer":{"@type":"Answer","text":"Older, unsupported PHP releases were segfaulting when built with a modern GCC 16 compiler toolchain, so PHP 7.4 was the oldest version usable in a benchmark comparison against PHP 8.x releases through the current PHP 8.6 Git branch. All tested versions were built from the same compiler toolchain on Fedora 44 for consistency. Developers weighing PHP upgrade paths can follow build compatibility issues like this on daily.dev."}}]} ```