It&#x27;s far from being immediately actionable and focused on JS libs, but this book [1] from Ilya Grigorik, who is a perf engineer at Google, is a good start. It&#x27;s not about JS, but a wide view, starting from TCP &#x2F; HTTP(S) level, through how mobile devices work, to JavaScript.<p>You may want to read also some articles on perfplanet [2]<p>Blog of Grigorik is also intersting [3]<p>But as I said all those resources are about &quot;web performance&quot; rather than &quot;JS performance&quot; and are more high level overview about latencies, UX and not exactly on minimizing CPU cycles.<p>[1] <a href="http:&#x2F;&#x2F;chimera.labs.oreilly.com&#x2F;books&#x2F;1230000000545" rel="nofollow">http:&#x2F;&#x2F;chimera.labs.oreilly.com&#x2F;books&#x2F;1230000000545</a><p>[2] <a href="http:&#x2F;&#x2F;calendar.perfplanet.com&#x2F;2015&#x2F;" rel="nofollow">http:&#x2F;&#x2F;calendar.perfplanet.com&#x2F;2015&#x2F;</a><p>[3] <a href="https:&#x2F;&#x2F;www.igvita.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.igvita.com&#x2F;</a>