get-heap-mib

Get a snapshot of the current dynamic memory usage, rounded up to the nearest mebibyte (2^20).

This includes usage from the Wasm linear memory (heap) and usage from host allocations made on behalf of this sandbox, e.g. buffered bodies of HTTP responses. The returned value is just a snapshot- it can change without any explicit action by the sandbox (for instance, additional response data coming in from an HTTP response.) It can also change over time / across runs, as the Compute platform's memory usage changes. Consider the returned value with these uncertainties in mind.