--- title: Introduction to torch.compile and How It Works with vLLM description: torch.compile is PyTorch's just-in-time compiler that automatically generates optimized kernels for faster model execution without manual optimization. vLLM... canonical: https://daily.dev/posts/introduction-to-torch-compile-and-how-it-works-with-vllm-1mzylcxhp twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Introduction to torch.compile and How It Works with vLLM | daily.dev og:description: torch.compile is PyTorch's just-in-time compiler that automatically generates optimized kernels for faster model execution without manual optimization. vLLM... og:url: https://daily.dev/posts/introduction-to-torch-compile-and-how-it-works-with-vllm-1mzylcxhp og:image: https://api.daily.dev/og/posts/1MzYlcXHp.png og:image:alt: Introduction to torch.compile and How It Works with vLLM 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. # Introduction to torch.compile and How It Works with vLLM **[vLLM](https://daily.dev/sources/vllm)** · 13 min read · 0 upvotes · 0 comments ## Summary torch.compile is PyTorch's just-in-time compiler that automatically generates optimized kernels for faster model execution without manual optimization. vLLM integrates torch.compile by default, using compilation caching, dynamic batch size support, and piecewise CUDA Graphs to improve LLM inference performance. The integration includes custom compiler passes for operations like SiLU+quantization fusion and sequence parallelism, achieving performance improvements of 8-15% in various scenarios. Future work focuses on improving stability, reducing startup times, and enhancing custom pass mechanisms. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#ai-inference](https://daily.dev/tags/ai-inference), [#compiler-optimization](https://daily.dev/tags/compiler-optimization), [#cuda](https://daily.dev/tags/cuda), [#pytorch](https://daily.dev/tags/pytorch), [#vllm](https://daily.dev/tags/vllm) [View this post on daily.dev](https://daily.dev/posts/introduction-to-torch-compile-and-how-it-works-with-vllm-1mzylcxhp) ```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":"Introduction to torch.compile and How It Works with vLLM","url":"https://daily.dev/posts/introduction-to-torch-compile-and-how-it-works-with-vllm-1mzylcxhp","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/introduction-to-torch-compile-and-how-it-works-with-vllm-1mzylcxhp"},"datePublished":"2025-08-21T22:21:06.250Z","dateModified":"2026-03-30T02:17:24.308Z","description":"torch.compile is PyTorch's just-in-time compiler that automatically generates optimized kernels for faster model execution without manual optimization. vLLM...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2d54c4c1521884385ec3bc36630b1378?_a=AQAEulh","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2d54c4c1521884385ec3bc36630b1378?_a=AQAEulh","isAccessibleForFree":true,"articleSection":"vLLM","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":"vLLM","logo":"https://media.daily.dev/image/upload/s--hTxEuls9--/f_auto/v1744613054/logos/vllm","url":"https://daily.dev/sources/vllm"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/introduction-to-torch-compile-and-how-it-works-with-vllm-1mzylcxhp","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ai-inference,compiler-optimization,cuda,pytorch,vllm","timeRequired":"PT13M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"vLLM","item":"https://daily.dev/sources/vllm"},{"@type":"ListItem","position":3,"name":"Introduction to torch.compile and How It Works with vLLM"}]} ```