HP-UX Reference (11i v1 00/12) - 2 System Calls (vol 5)

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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man2/!!!intro.2
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s
settune(2) settune(2)
[EINVAL] The specified value is not within the acceptable range for the specified parameter.
[EBUSY] The value of the parameter could not be changed immediately.
[ENOTSUP] The specified parameter cannot be changed without rebuilding the kernel.
[EIO] The Kernel Registry Service was unavailableor encountered an error.
[ENOMEM] Insufficient memory to accommodate the new parameter value.
WARNINGS
It is possible to seriously degrade system performance, or even render a system unbootable, with incorrect
tunable settings. Use care when setting tunable values. Always have a known working kernel saved as a
backup; if the system fails to boot after a tunable change, boot from that backup kernel. Keep good records
of all tunable changes so that they can be reversed if they degrade system performance. (Tunable changes
made with settune() are automatically logged to syslog and to the Kernel Logging system.)
AUTHOR
settune() was developed by Hewlett-Packard Company.
SEE ALSO
kmtune(1M), mk_kernel(1M), gettune(2), tuneinfo(2).
Section 2−−320 − 2 − HP-UX Release 11i: December 2000
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