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Reply to App Startup with Debugger in Xcode 26 is slow
Hi @DTS Engineer ! I'm working with @isaacweisberg and have been investigating this issue for the past few days. I've opened FB20359822 (Xcode 26 on device debugging performance severely degraded) which contains extensive information and attachments regarding the issue, a vanilla project reproducing it and showing the same behaviors that we see in our main app as well as some leads to the source of the issue (changes in gdb/gdb-remote, threads and dynamic libraries). Sincerely, Marty, iOS @amo
Sep ’25
Reply to App Startup with Debugger in Xcode 26 is slow
Hi, I'm working with @isaacweisberg and have been investigating this for the past few days. I've opened FB20359822 (Xcode 26 on device debugging performance severely degraded) which contains extensive information about the issue, a vanilla project that reproduces the behavior we see and experience as well as leads to what is causing this issue (a mix of new gdb/gdb-remote behavior, threads and dynamic libraries). Sincerely, Marty, iOS Engineering @amo
Sep ’25