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

# tapset::guru-delay(3stap)

systemtap guru-delay tapset

## NAME

tapset::guru-delay - systemtap guru-delay tapset

## DESCRIPTION

 Functions in the guru-delay tapset allow a probe handler to insert\
  deliberate delays.  This is sometimes useful as a fault-injection\
  aid.  Due to its likelihood of interference with the kernel, guru\
  mode is required, and overload-prevention is suppressed.

-

  - **mdelay**

  millisecond delay

-

  See  [*function::mdelay*(3stap)](/function::mdelay/3stap.md)\
    for details.

- **udelay**

  microsecond delay

-

  See  [*function::udelay*(3stap)](/function::udelay/3stap.md)\
    for details.

## SEE ALSO

[*function::mdelay*(3stap)](/function::mdelay/3stap.md), [*function::udelay*(3stap)](/function::udelay/3stap.md), [*stap*(1)](/stap/1.md), [*stapprobes*(3stap)](/stapprobes/3stap.md)