{"id":272687,"date":"2026-06-14T06:22:00","date_gmt":"2026-06-14T10:22:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/06\/14\/revised-avx-512-xor_gen-implementation-for-linux-raid-yielding-more-performance-gains\/"},"modified":"2026-06-14T06:50:14","modified_gmt":"2026-06-14T10:50:14","slug":"revised-avx-512-xor_gen-implementation-for-linux-raid-yielding-more-performance-gains","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/06\/14\/revised-avx-512-xor_gen-implementation-for-linux-raid-yielding-more-performance-gains\/","title":{"rendered":"Revised AVX-512 xor_gen() Implementation For Linux RAID Yielding More Performance Gains"},"content":{"rendered":"<p><a href=\"https:\/\/www.phoronix.com\/news\/AVX-512-Xor-Gen-More-Perf\">Revised AVX-512 xor_gen() Implementation For Linux RAID Yielding More Performance Gains<\/a><\/p>\n<p><a href=\"https:\/\/www.phoronix.com\/news\/AVX-512-Xor-Gen-More-Perf\">https:\/\/www.phoronix.com\/news\/AVX-512-Xor-Gen-More-Perf<\/a><\/p>\n<p>Publish Date: <a href=\"publish_date]\">2026-06-14 06:22:00<\/a><\/p>\n<p>Source Domain: <a href=\"www.phoronix.com\">www.phoronix.com<\/a><\/p>\n<p>A few days back I wrote about Google&#8217;s Eric Biggers spearheading an AVX-512 implementation of xor_gen() as the Linux kernel function used for generating and validating parity blocks such as for RAID5\/RAID6. That initial implementation was yielding up to 41% better performance while a new implementation has now been posted for scoring some additional victories.<\/p>\n<p>Biggers has been working through an AVX-512 version of xor_gen() to help with Linux software RAID performance and the like, that function is also used by some Linux file-systems directly like Btrfs too.\n<\/p>\n<p>With the new implementation posted overnight, it&#8217;s now up to a 43% improvement in performance while other src count sizes are benefiting more than the original implementation:<br \/>\n<\/p>\n<p align=\"center\"><img decoding=\"async\" src=\"https:\/\/www.phoronix.net\/image.php?id=2026&#038;image=xor_gen_2\" alt=\"xor_gen v2 benchmark\"\/><\/p>\n<p>That v2 implementation is now out for review on the Linux kernel mailing list.<br \/>\n<br \/><a href=\"https:\/\/www.phoronix.com\/news\/AVX-512-Xor-Gen-More-Perf\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Revised AVX-512 xor_gen() Implementation For Linux RAID Yielding More Performance Gains https:\/\/www.phoronix.com\/news\/AVX-512-Xor-Gen-More-Perf Publish Date: 2026-06-14&#8230;<\/p>\n","protected":false},"author":1,"featured_media":272689,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.phoronix.net\/image.php?id=2026&image=xor_gen_2","fifu_image_alt":"","footnotes":""},"categories":[48],"tags":[71],"class_list":["post-272687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","tag-linux"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/272687"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=272687"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/272687\/revisions"}],"predecessor-version":[{"id":272691,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/272687\/revisions\/272691"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/272689"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=272687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=272687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=272687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}