This week, we talk with Yiming Chen about how drilled into the root cause of some slow requests and how it turned out to be an issue with Elixir's own Regex module. We talk about how they monitor performance at Tubi, what they tried to solve the issue, and how they ssh'ed into production to run more detailed performance monitoring. Panel Adi Iyengar Allen Wyma Charles Max Wood Sascha Wolf Guest Yiming Chen Sponsors Dev Influencers Accelerator Links How we discovered a 7-year old performance issue in Elixir GitHub | proger/eflame Erlang -- eprof Erlang -- Profiling GitHub | dsdshcym/promox What I learned from implementing Combinators in 3 Elixir patterns Twitter: Yiming Chen ( @dsdshcym ) Picks Adi- Buy a car Adi- GitHub | cuelang/cue Allen- How using hyper in curl can help make the internet safer Allen- 3D Mockups Fast | Rotato Charles- Atlas Shrugged  Charles- Home Depot Sascha- Brené Brown: The power of vulnerability Sascha- The Power of Vulnerability Yiming- GitHub | dsdshcym/objext Contact Adi: Adi Iyengar – The Bug Catcher GitHub: Adi Iyengar ( thebugcatcher ) Twitter: Adi Iyengar ( @lebugcatcher ) Contact Allen: Plangora  Plangora Limited Plangora – YouTube Plangora | Facebook Tech_Plangora Limited_Elixir | Instagram Twitter: Plangora ( @Plangora ) LinkedIn: Plangora – Web and Mobile Development Plangora – Reddit Flying High With Flutter Flying High With Flutter Flying High with Flutter – YouTube Flying High with Flutter | Facebook Flying High With Flutter | Instagram Twitter: Flying High with Flutter ( @fhwflutter ) Teach Me Code Teach Me Code Teach Me Code | Facebook TeachMeCode | Instagram Contact Charles: Devchat.tv DevChat.tv | Facebook Twitter: DevChat.tv ( @devchattv ) Contact Sascha: Sascha Wolf