[vlovich123]

> Additionally, in C++, requesting that heap memory also requires a syscall every time the container geometrically changes size

That is not true - no allocator I know of (and certainly not the default glibc allocator) allocates memory in this way. It only does a syscall when it doesn’t have free userspace memory to hand out but it overallocates that memory and also reuses memory you’ve already freed.

[idiomat9000]

Wasn't there also over allocate for the first geometric expansion and mark the 2nd as for space for likely shortlived objects?