---
name: "irqtune"
section: "8"
platform: "linux"
package: "hwtools"
version: "0.8-5"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/irqtune"
---

# irqtune(8)

A Linux IRQ Priority Optimizer

## NAME

irqtune - A Linux IRQ Priority Optimizer

## SYNOPSIS

**irqtune** \[*options*\] \[master\] \[slave\]\

## DESCRIPTION

This manual page explains the way to use the  **irqtune** program. This program changes the IRQ priority of devices to allow devices that require high priority and fast service (e.g. serial ports, modems) to have it. \
 With irqtune, a 3X speedup of serial/modem throughput is possible. \

## USAGE

irqtune \[options\] \[master\] \[slave\] \
  arguments: \
    master -- high priority IRQ on PIC master (DEFAULT: 3)  \
    slave -- high priority IRQ on PIC slave (DEFAULT: 14)

## OPTIONS

- \-OPTION

   general options: \
      \-h -- display help \
      \-v -- display irqtune version \
      \-o -- reset to original values (0/8) \
    priority table options: \
      \-q -- suppress priority table printing \
      \-s -- sort table by priority \
      \-x -- show inactive devices in table \
    error control options: \
      \-e -- show full errors \
      \-f -- force loading even if probe detects errors \
      \-u -- force module unload \
      \-V -- insmod verbose mode \
      \-w -- treat warnings as errors \
    documentation options: \
      \-F\<file\> -- use \<file\> instead of /proc/interrupts \
      \-i -- install program \
      \-L\<directory\> -- directory to search for insmod \
      \-n -- nogo mode (just show what would happen)

## BUGS

Does not seems to work on interrupts superior to 14. May fail to load on certain kernel versions. See /usr/share/doc/irctune/README.html or /usr/share/doc/irctune/README

## AUTHOR

Pierre Ancelot \<eternityos@free.fr\>\>