Function memory_stat 

pub fn memory_stat() -> Result<MemoryStat, ReadParseError>

Reads and parses the memory statistics file.

Optional fields

• The memory statistics file MEMORY_STAT may not contain all fields. In this case, the field is assumed to be zero.
• In case the field’s value cannot be parsed to u64, the field is assumed to be zero (unlikely scenario).

Errors

Returns an error if the memory statistics file MEMORY_STAT could not be read or parsed.