Module sysmem 

Host-memory queries used to compute the process memory budget (see app::budget) and to report live usage. Two values, each best-effort: the machine’s total physical RAM (the budget is a fraction of it) and this process’s resident set size (what it is actually using now).

Deliberately a small hand-rolled platform shim rather than a dependency like sysinfo: the engine needs exactly these two numbers, and both are a single syscall per platform. Every query returns None when the platform call is unavailable or fails, and the callers degrade gracefully (the budget falls back to the hard ceiling; a usage readout shows “unknown”).

Functions

process_resident_bytes

Resident set size of the current process, in bytes: the physical memory it currently occupies. None if the platform query is unsupported or fails.