about:memory is a really useful tool, but everyone always complains about the “heap-unclassified” number being too high.\u00a0 It’s too high because we don’t have enough memory reporters implemented.<\/p>\n
DMD<\/a> is a tool that identifies where new memory reporters should be added to reduce “heap-unclassified”.\u00a0 I’ve been using it for a couple of months now, and I’ve just written instructions on how to use it<\/a>.\u00a0 It’s not easy, but hopefully it’s doable.<\/p>\n It’s probably worth pointing out that we have a pretty good handle on what needs to be done to reduce “heap-unclassified” significantly — check out the list of memory reporters to be implemented.<\/a>\u00a0 Almost all of those bugs were filed based on data from DMD.\u00a0 The single most important bug in that list is the one to add missing style reporters<\/a>;\u00a0 I see multiple megabytes of CSS stuff all the time in DMD’s output.<\/p>\n","protected":false},"excerpt":{"rendered":" about:memory is a really useful tool, but everyone always complains about the “heap-unclassified” number being too high.\u00a0 It’s too high because we don’t have enough memory reporters implemented. DMD is a tool that identifies where new memory reporters should be added to reduce “heap-unclassified”.\u00a0 I’ve been using it for a couple of months now, and […]<\/p>\n","protected":false},"author":139,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4550,4557,30,484],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/posts\/1396"}],"collection":[{"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/users\/139"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/comments?post=1396"}],"version-history":[{"count":0,"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/posts\/1396\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/media?parent=1396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/categories?post=1396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.mozilla.org\/nnethercote\/wp-json\/wp\/v2\/tags?post=1396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}