HP-UX 11i Version 1.6 Release Notes

HP-UX Features

Tunable Kernel Parameters

Chapter 3

Also, it is no longer necessary for you to tune the

ncallout

and

maxswapchunks

kernel

parameters. In HP-UX 11i v1.6, the HP-UX kernel automatically adjusts the data

structures previously controlled by these parameters. The

ncallout

and

maxswapchunks

kernel parameters are no longer “tunable”.

Impact

The changes to the tunable kernel parameters result in increased availability, as it is no

longer necessary to reboot the operating system when modifying the aforementioned

dynamic tunables.

Compatibility

Scripts/programs accessing

ncallout

and

maxswapchunks

are not effected.

Performance

No measurable impact.

Obsolescence

The following kernel tunable parameters are obsolesced:

Documentation

The manpages for most tunable kernel parameters are available using the man

command.

Additionally, the kcweb application GUI contains an online help facility to further assist

you.

Table 3-3 Obsoleted Kernel Tunables

-maxswapchunks -ncallout

-clicreservedmem -ndilbuffers

-spread_UP_drivers

-nni

-bootspinlocks -netisr_priority