---
name: "function::udelay"
section: "3stap"
platform: "linux"
package: "systemtap-doc"
version: "5.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/function::udelay"
---

# function::udelay(3stap)

microsecond delay

## NAME

function::udelay - microsecond delay

## SYNOPSIS

```
    udelay(us:long)
```

## ARGUMENTS

*us*

Number of microseconds to delay.

## DESCRIPTION

This function inserts a multi-microsecond busy-delay into a probe handler. It requires guru mode.

## SEE ALSO0

[*tapset::guru-delay*(3stap)](/tapset::guru-delay/3stap.md)