Notable iOS size changes week-over-week 📈 Increases @chesscom: +41.1 MB @MasterClass: +40.8 MB @WellsFargo: +19.5 MB 📉 Decreases @Target: -35.4 MB hole-io: -17.8 MB @discord: -10.9 MB 🧵 Why Masterclass got slower + Xcode14 strikes againNot only did MasterClass increase by over 40 MB (will explain why later), but it also saw a 7% regression to :didFinishLaunching between v11.41 & v11.40 Here's a look at the regressionFiltering to only show functions over 15ms, we easily see the root of the regression are new web views that previously weren't present The 1st image is the view from the head (v11.41) which has the web view. The 2nd is from the base (v11.40) where there are no web viewsLooking through the size diff, our best guess (without access to dSYMs) is some additions to the @segment SDK. Tracking SDKs often use web views like we saw in the startup pathYou can play around with the flame chart for MasterClass here Click into "Advanced Configuration" to filter + more fun controlsIf you want to learn more about our performance analysis, we just went in depth to how it works in our recent deep dive into Android performance testingNow, on Xcode 14... At risk of being an Xcode 14 spam account, @chesscom and @MasterClass both had 40+ MBs in size regressions due to building with Xcode 14 for the first time Here's a thread (with links to more threads) where we explain the regressionAnalysis Links Chess . com MasterClass Wells Fargo Target Hole . io Discord

Notable iOS size changes week-over-week Increases @chesscom: +41.1 MB @MasterClass: +40.8 MB @WellsFargo: +19.5 MB Decreases @Target: -35.4 MB hole-io: -17.8 MB @discord: -10.9 MB 🧵 Why Masterclass got slower + Xcode14 strikes again ... Not only did MasterClass increase by over 40 MB (will explain why later), but it also saw a 7% regression to :didFinishLaunching between v11.41 & v11.40 Here's a look at the regression ... Filtering to only show functions over 15ms, we easily see the root of the regression are new web views that previously weren't present The 1st image is the view from the head (v11.41) which has the web view. The 2nd is from the base (v11.40) where there are no web views ... Looking through the size diff, our best guess (without access to dSYMs) is some additions to the @segment SDK. Tracking SDKs often use web views like we saw in the startup path ... You can play around with the flame chart for MasterClass here Click into "Advanced Configuration" to filter + more fun controls ... If you want to learn more about our performance analysis, we just went in depth to how it works in our recent deep dive into Android performance testing ... Now, on Xcode 14... At risk of being an Xcode 14 spam account, @chesscom and @MasterClass both had 40+ MBs in size regressions due to building with Xcode 14 for the first time Here's a thread (with links to more threads) where we explain the regression ... Analysis Links Chess . com MasterClass Wells Fargo Target Hole . io Discord