Address space
An address space is the set or range of addresses recognized within a system or addressing scheme for identifying locations or entities.
Rust in Action: Systems programming concepts and techniques
An address space is the set of memory addresses available for identifying stored data and instructions in an execution environment.
- How it is used
- Uses address spaces to make pointer values intelligible and to investigate what memory a running process can access.
- How deep it goes
- Works from a byte-address model through virtual-memory terminology and hands-on inspection, while treating OS–CPU implementation details as a general guide.
- Examples
- Uses printed Rust pointer addresses, an illustrative 49-byte layout, failed byte-by-byte scans, and Windows memory-region inspection.
- What you can do after
- Apply it via the Windows API to inspect a process’s memory regions without blindly dereferencing addresses.
Read how Rust in Action: Systems programming concepts and techniques explains address space →
Latency
A process address space is the range of virtual memory addresses available to a running process.
- How it is used
- Explains how applications receive virtual memory and why address-space behavior affects application latency.
- How deep it goes
- Descends from process layout to page tables, lazy allocation, page faults, swapping, and memory-versus-disk access costs.
- Examples
- Uses process memory-layout and page-table figures, including contiguous virtual ranges mapped to noncontiguous physical locations.
- What you can do after
- Evaluate latency risks by relating page mappings, lazy allocation, and disk-backed pages to access cost.
Grokking Concurrency
An address space is the range and mapping of memory addresses available to a process or other execution context.
- How it is used
- Defines the memory view that lets processes hold data while remaining isolated from one another.
- How deep it goes
- Defines accessible process memory and contrasts separate process spaces with threads’ shared space; defers communication mechanisms.
- Examples
- Uses child processes with separate memory and threads reading and writing shared process memory.
- What you can do after
- Understand how separate or shared memory affects isolation and communication between processes and threads.
Related concepts
- memory locationhas part · A memory location is an identifiable address or storage region in computer memory where data or instructions can reside or be accessed.
- memory pagehas part · A memory page is a fixed-size block of virtual or physical memory or storage that is managed and mapped as a unit.
- virtual memoryused by · Virtual memory is a memory-management abstraction that gives processes virtual address spaces mapped to physical memory and, when needed, secondary storage.
- workflowpart of · A workflow is an organized sequence of coordinated activities, tasks, or decisions through which work progresses toward an outcome.
- threadused by · A thread is an independently schedulable sequence or context of execution within a program or process.
- setjmp/longjmpused by · The setjmp/longjmp mechanism is a C nonlocal-control-flow facility that saves an execution context and later restores it to transfer control across function-call boundaries.
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