96 core to process 10K complex event/s sounds quite impressive given the kind of analysis you seem to have to do. Did sentry used to have all the stack trace, local variable data originally or that kind of extensive processing a more recent development? I am more used to Java where the basic stack trace is provided by the VM and I assume processing those are much simpler than some of the user kind of events?

> All event processing (currently) takes place on three 32 core Xeon machines. But it has seen much worse days when we had many more before we optimized critical paths.

Finally I could understand what kind of efficiency you guys have. Not bad at all I’d say though not exactly “high load miracle” the article title would imply.