PROBE::SCHEDULER.C(3stap) Scheduler Tapset PROBE::SCHEDULER.C(3stap)

# [NAME](#NAME)

probe::scheduler.cpu\_on - Process is beginning execution on a cpu

# [SYNOPSIS](#SYNOPSIS)

```
probe scheduler.cpu_on {}
```

# [VALUES](#VALUES)

*idle*

\- boolean indicating whether current is the idle process

*name*

name of the probe point

*task\_prev*

the process that was previously running on this cpu

# [CONTEXT](#CONTEXT)

The resuming process.

# [SEE ALSO0](#SEE_ALSO0)

[*tapset::scheduler*(3stap)](/man/enterprise-packages/systemtap/tapset::scheduler.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: probe::scheduler.cpu_on(3stap) from systemtap 5.6-r1 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git