irqtune - A Linux IRQ Priority Optimizer

irqtune [options] [master] [slave]

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.

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

-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)

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

Pierre Ancelot <eternityos@free.fr>>