Back in the 00's our servers were suffering under heavy load. Normally they just bought more servers, but I asked if anyone ever profiled our app and no one co

Back in the 00's our servers were suffering under heavy load. Normally they just bought more servers, but I asked if anyone ever profiled our app and no one could remember doing so. I did so and our home grown ORM did a couple really dumb things. Including access the disk each time it allocated a new object that represented a row (wtf). After spending a couple days fixing those things we needed 1/4 of the servers we did beforehand.