---
name: "rtl_getcpuid"
section: "3"
platform: "linux"
package: "rtlinux"
version: "2.0rel-1"
release: "Debian 2.2 (Potato)"
platforms: ["linux"]
url: "https://new.carta.tech/rtl_getcpuid"
---

# rtl\_getcpuid(3)

get the current processor id

## NAME

rtl\_getcpuid -  get the current processor id

## SYNOPSIS

**#include \<rtl\_core.h\>**

**int rtl\_getcpuid ();**

## DESCRIPTION

This function is a non-portable Real-Time Linux extension. **rtl\_getcpuid** returns the processor id on which the current thread executes.

## ERRORS

None.

## SEE ALSO

[**pthread\_attr\_setcpu\_np**(3)](/pthread_attr_setcpu_np/3.md)