Description:

When storing stats in shared memory for hot-restart, we preallocate max_stats * maxNameLength for string storage. But this means you have to make hard up-front decisions about how much memory you can spend. However if we disable hot-restart, there's no compelling reason to pad each stat, so you could just set maxNameLength pretty high. If that were fixed, we wouldn't have to tune maxNameLength so carefully.

@ambuc may wind up looking at this as he was the last one to dive into the not-hot-restart case.