I wrote a two part article on theory and practice of Last Branch
\nRecords using Linux perf. They were published on LWN.<\/p>\n
This includes the background (what is a last branch record and why
\nbranch sampling), what you can use it for in perf, like hot path
\nprofiling, frame pointerless callgraphs, or automatic micro benchmarks,
\nand also other uses like continuous compiler feedback.<\/p>\n
The articles are now freely available:<\/p>\n
Part 1: Introduction of Last Branch Records<\/a> I wrote a two part article on theory and practice of Last Branch Records using Linux perf. They were published on LWN. This includes the background (what is a last branch record and why branch sampling), what you can use it for in perf, like hot path profiling, frame pointerless callgraphs, or automatic micro benchmarks, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7,1],"tags":[],"_links":{"self":[{"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/posts\/367"}],"collection":[{"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/comments?post=367"}],"version-history":[{"count":3,"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/posts\/367\/revisions"}],"predecessor-version":[{"id":370,"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/posts\/367\/revisions\/370"}],"wp:attachment":[{"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/media?parent=367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/categories?post=367"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/halobates.de\/blog\/wp-json\/wp\/v2\/tags?post=367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nPart 2: Advanced uses of Last Branch Records<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"