You actually are doing dynamic memory allocations, you are just not allocating from the operating system. A quick look shows how this is done: https://github.c

You actually are doing dynamic memory allocations, you are just not allocating from the operating system. A quick look shows how this is done: https://github.com/tigerbeetledb/tigerbeetle/blob/91a105875ce427d3a89fc09678819f0826ac7b78/src/vsr.zig#L819 https://github.com/tigerbeetledb/tigerbeetle/blob/91a105875c... You can see things like alloc / free, memory ownership, and everything that is associated with it. The fact that you allocate from a startup buffer vs. a call to `mmap`/`brk` doesn't really change things.