---
name: "pwrkap_main"
section: "8"
platform: "linux"
package: "pwrkap"
version: "7.30-5"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/pwrkap_main"
---

# pwrkap\_main(8)

Main pwrkap system daemon

## NAME

pwrkap\_main - Main pwrkap system daemon

## SYNOPSIS

**pwrkap\_main \[-d\] \[-w\] \[-f\] \[-t\]** *listen\_port* \[ *log\_age* \]

## DESCRIPTION

**pwrkap\_main** starts the main pwrkap control daemon.  This piece of software observes power use for a given hardware configuration and system load, and tries to enforce a power cap by raising or lowering each device's performance capabilities.

## OPTIONS

- \-d

  Run in the foreground, for debugging.

- \-w

  Start web service on port 8036.

- \-f

  Simulate a system full of power-managed system.

- \-t

  Do not reuse saved data.

- listen\_port

  Listen for pwrkap clients on this TCP port.

- log\_age

  Keep old status data around for *log\_age* seconds.

## AUTHOR

Darrick J. Wong \<djwong at us dot ibm dot com\>

## SEE ALSO

[**pwrkap\_gtk**(1)](/pwrkap_gtk/1.md), [**pwrkap\_cli**(1)](/pwrkap_cli/1.md), [**pwrkap\_aggregate**(8)](/pwrkap_aggregate/8.md)