new PerformanceObserver(function(list) { var perfEntries = list.getEntries(); for (var i = 0; i < perfEntries.length; i++) { // LongTaskͷ࣮ߦதͰ͋Δ͜ͱΛ௨ // ௨ͨ͠Βϩάʹॻ͘ͳͲͷղੳʹ׆͔͢ } }); // long task Λ؍ଌՄೳʹɻ observer.observe({entryTypes: ["longtask"]}); https://github.com/w3c/longtasks
the main thread with workers https://speakerdeck.com/kosamari/off-the-main-thread-with- workers • improving the developer experience for doing work off the main thread http://bit.ly/blinkon9- omt • web application 2018 from performance perspective https://speakerdeck.com/ yosuke_furukawa/web-application-2018-from-performance-perspective • Speed Focus for 2018 https://docs.google.com/presentation/d/1OBij2sz6gNU- VCrNz7REvJ4piiM21YZnVCUnl6MjUas/edit#slide=id.g372bf772fc_0_55 • high performance web sites https://www.amazon.co.jp/dp/B0028N4WHY/ • high performance browser networking https://www.amazon.co.jp/dp/B00FM0OC4S/