{"id":133250,"date":"2025-05-19T17:05:41","date_gmt":"2025-05-19T17:05:41","guid":{"rendered":"http:\/\/webdomino.net\/?guid=00244ba2cb1f435a7825f26871108eac"},"modified":"2025-05-19T17:05:41","modified_gmt":"2025-05-19T17:05:41","slug":"call-for-testing-em4-tx-interrupt-mitigation","status":"publish","type":"post","link":"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/","title":{"rendered":"Call for testing: em(4) TX interrupt mitigation"},"content":{"rendered":"\nAre you an OpenBSD user with a low power device such as a\r\n<a href=\"https:\/\/pcengines.ch\/\">PC Engines<\/a>\r\n<a href=\"https:\/\/pcengines.ch\/apu2.htm\">APU2<\/a>,\r\nwith one or more\r\n<code><a href=\"https:\/\/man.openbsd.org\/em\">em(4)<\/a><\/code>\r\nnetwork interfaces?\r\n<p>\r\nDarren Tucker (<code>dtucker@<\/code>) has a new diff out that may be of use to you,\r\nposted in a\r\n<a href=\"https:\/\/marc.info\/?l=openbsd-tech&amp;m=174764453122168&amp;w=2\">message<\/a>\r\nto <code>tech@<\/code>:\r\n<\/p><p>\r\n<blockquote>\r\n<pre>\r\nList:       openbsd-tech\r\nSubject:    em(4) TX interrupt mitigation\r\nFrom:       Darren Tucker &lt;dtucker () dtucker ! net&gt;\r\nDate:       2025-05-19 8:52:13\r\n\r\nHi.\r\n\r\n<abbr>TL;DR<\/abbr>: if you use em(4), particularly on a low-power device such as a\r\npcengines APU2, please try this <abbr>diff<\/abbr>.\r\n\r\nThe em(4) driver has 5 interrupt mitigation timers[0].\r\n<\/pre>\r\n<\/blockquote>\r\n\n<\/p><p><a href=\"http:\/\/undeadly.org\/cgi?action=article;sid=20250519170541\">Read more&hellip;<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Are you an OpenBSD user with a low power device such as a<br \/>\nPC Engines<br \/>\nAPU2,<br \/>\nwith one or more<br \/>\nem(4)<br \/>\nnetwork interfaces?<\/p>\n<p>Darren Tucker (dtucker@) has a new diff out that may be of use to you,<br \/>\nposted in a<br \/>\nmessage<br \/>\nto tech@:<\/p>\n<p>List:       op&#8230;<\/p>\n","protected":false},"author":174,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Call for testing: em(4) TX interrupt mitigation - WebDomino.NET<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Call for testing: em(4) TX interrupt mitigation - WebDomino.NET\" \/>\n<meta property=\"og:description\" content=\"Are you an OpenBSD user with a low power device such as a PC Engines APU2, with one or more em(4) network interfaces?  Darren Tucker (dtucker@) has a new diff out that may be of use to you, posted in a message to tech@:    List:    op...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/\" \/>\n<meta property=\"og:site_name\" content=\"WebDomino.NET\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-19T17:05:41+00:00\" \/>\n<meta name=\"author\" content=\"OpenBSD Journal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"OpenBSD Journal\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/\",\"url\":\"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/\",\"name\":\"Call for testing: em(4) TX interrupt mitigation - WebDomino.NET\",\"isPartOf\":{\"@id\":\"https:\/\/webdomino.net\/#website\"},\"datePublished\":\"2025-05-19T17:05:41+00:00\",\"dateModified\":\"2025-05-19T17:05:41+00:00\",\"author\":{\"@id\":\"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72\"},\"breadcrumb\":{\"@id\":\"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/webdomino.net\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Call for testing: em(4) TX interrupt mitigation\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/webdomino.net\/#website\",\"url\":\"https:\/\/webdomino.net\/\",\"name\":\"WebDomino.NET\",\"description\":\"Global NEWS WordPress site\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/webdomino.net\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72\",\"name\":\"OpenBSD Journal\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/webdomino.net\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g\",\"caption\":\"OpenBSD Journal\"},\"sameAs\":[\"http:\/\/undeadly.org\/\"],\"url\":\"https:\/\/webdomino.net\/index.php\/author\/openbsd-journal\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Call for testing: em(4) TX interrupt mitigation - WebDomino.NET","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/","og_locale":"en_US","og_type":"article","og_title":"Call for testing: em(4) TX interrupt mitigation - WebDomino.NET","og_description":"Are you an OpenBSD user with a low power device such as a PC Engines APU2, with one or more em(4) network interfaces?  Darren Tucker (dtucker@) has a new diff out that may be of use to you, posted in a message to tech@:    List:    op...","og_url":"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/","og_site_name":"WebDomino.NET","article_published_time":"2025-05-19T17:05:41+00:00","author":"OpenBSD Journal","twitter_misc":{"Written by":"OpenBSD Journal"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/","url":"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/","name":"Call for testing: em(4) TX interrupt mitigation - WebDomino.NET","isPartOf":{"@id":"https:\/\/webdomino.net\/#website"},"datePublished":"2025-05-19T17:05:41+00:00","dateModified":"2025-05-19T17:05:41+00:00","author":{"@id":"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72"},"breadcrumb":{"@id":"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/webdomino.net\/index.php\/openbsd\/call-for-testing-em4-tx-interrupt-mitigation\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/webdomino.net\/"},{"@type":"ListItem","position":2,"name":"Call for testing: em(4) TX interrupt mitigation"}]},{"@type":"WebSite","@id":"https:\/\/webdomino.net\/#website","url":"https:\/\/webdomino.net\/","name":"WebDomino.NET","description":"Global NEWS WordPress site","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/webdomino.net\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72","name":"OpenBSD Journal","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/webdomino.net\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g","caption":"OpenBSD Journal"},"sameAs":["http:\/\/undeadly.org\/"],"url":"https:\/\/webdomino.net\/index.php\/author\/openbsd-journal\/"}]}},"_links":{"self":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts\/133250"}],"collection":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/users\/174"}],"replies":[{"embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/comments?post=133250"}],"version-history":[{"count":1,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts\/133250\/revisions"}],"predecessor-version":[{"id":133251,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts\/133250\/revisions\/133251"}],"wp:attachment":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/media?parent=133250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/categories?post=133250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/tags?post=133250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}