--- title: SeaweedFS: CRC and Object Pool | daily.dev description: A deep dive into two internals of SeaweedFS: a memory leak caused by oversized buffers in a sync.Pool and how it was fixed with a cap-and-drop strategy, and a... canonical: https://daily.dev/posts/seaweedfs-crc-and-object-pool-fiaaesxe9 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: SeaweedFS: CRC and Object Pool | daily.dev og:description: A deep dive into two internals of SeaweedFS: a memory leak caused by oversized buffers in a sync.Pool and how it was fixed with a cap-and-drop strategy, and a... og:url: https://daily.dev/posts/seaweedfs-crc-and-object-pool-fiaaesxe9 og:image: https://api.daily.dev/og/posts/fIAAEsXE9.png og:image:alt: SeaweedFS: CRC and Object Pool 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. # SeaweedFS: CRC and Object Pool **[Medium](https://daily.dev/sources/medium_js)** · 6 min read · 0 upvotes · 0 comments ## Summary A deep dive into two internals of SeaweedFS: a memory leak caused by oversized buffers in a sync.Pool and how it was fixed with a cap-and-drop strategy, and a detailed explanation of how CRC32 (Castagnoli polynomial) works — from linear feedback shift registers to hardware-accelerated instructions and Go's three-stream interleaving trick to overcome instruction-level dependency chains. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [sync.Pool in 2026: Stop Allocating, Start Reusing](https://daily.dev/posts/sync-pool-in-2026-stop-allocating-start-reusing-ovru6s28p) · Medium · 4 upvotes · 1 comments --- Tags: [#golang](https://daily.dev/tags/golang) [View this post on daily.dev](https://daily.dev/posts/seaweedfs-crc-and-object-pool-fiaaesxe9) ```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":"SeaweedFS: CRC and Object Pool","url":"https://daily.dev/posts/seaweedfs-crc-and-object-pool-fiaaesxe9","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/seaweedfs-crc-and-object-pool-fiaaesxe9"},"datePublished":"2026-07-23T19:35:48.746Z","dateModified":"2026-07-23T19:36:32.757Z","description":"A deep dive into two internals of SeaweedFS: a memory leak caused by oversized buffers in a sync.Pool and how it was fixed with a cap-and-drop strategy, and a...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d6ab0a9a223ee01bc82d647f54feb2d2?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d6ab0a9a223ee01bc82d647f54feb2d2?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Medium","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":"Medium","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/medium","url":"https://daily.dev/sources/medium_js"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/seaweedfs-crc-and-object-pool-fiaaesxe9","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"golang","timeRequired":"PT6M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Medium","item":"https://daily.dev/sources/medium_js"},{"@type":"ListItem","position":3,"name":"SeaweedFS: CRC and Object Pool"}]} ```