{"id":1234467,"date":"2025-02-24T11:29:58","date_gmt":"2025-02-24T16:29:58","guid":{"rendered":"https:\/\/www.prime-wow.com\/?p=1234467"},"modified":"2025-02-24T11:29:58","modified_gmt":"2025-02-24T16:29:58","slug":"slabs-sheaves-and-barns","status":"publish","type":"post","link":"https:\/\/www.prime-wow.com\/?p=1234467","title":{"rendered":"[$] Slabs, sheaves, and barns"},"content":{"rendered":"<div>The kernel&#8217;s slab allocator is responsible for the allocation of small<br \/>\n(usually sub-page) chunks of memory.  For many workloads, the speed of<br \/>\nobject allocation and freeing is one of the key factors in overall<br \/>\nperformance, so it is not surprising that a lot of effort has gone into<br \/>\noptimizing the slab allocator over time.  Now that the kernel is <a href=\"https:\/\/lwn.net\/Articles\/974138\/\">down to a single slab allocator<\/a>, the<br \/>\nmemory-management developers have free rein to add complexity to it; the<br \/>\nlatest move in that direction is the <a href=\"https:\/\/lwn.net\/ml\/all\/20250214-slub-percpu-caches-v2-0-88592ee0966a@suse.cz\">per-CPU<br \/>\nsheaves patch set<\/a> from slab maintainer Vlastimil Babka.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The kernel&#8217;s slab allocator is responsible for the allocation of small (usually sub-page) chunks of memory. For many workloads, the speed of object allocation and freeing is one of the key factors in overall performance, so it is not surprising &hellip; <a href=\"https:\/\/www.prime-wow.com\/?p=1234467\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72,116,110],"tags":[],"class_list":["post-1234467","post","type-post","status-publish","format-standard","hentry","category-linux","category-lwn-net","category-unfiltered-rss"],"_links":{"self":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1234467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1234467"}],"version-history":[{"count":0,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1234467\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1234467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1234467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1234467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}