<p>everybody has probably read it but if you haven't, do go check out yosefk's function-call-tracing-in-production article from a couple weeks ago <a href="https://yosefk.com/blog/profiling-in-production-with-function-call-traces.html" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">yosefk.com/blog/profiling-in-p</span><span class="invisible">roduction-with-function-call-traces.html</span></a></p>
