nstrsched.5 (2010 09)

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NSTRSCHED(5) NSTRSCHED(5)
(Tunable Kernel Parameters)
NAME
NSTRSCHED - number of STREAMS scheduler daemons to run
VALUES
Failsafe
0
Default
0
Allowed values
0 - 2147483647
Recommended values
0
DESCRIPTION
This tunable defines the number of multiprocessor (MP) STREAMS scheduler daemons to run on systems
containing more than one processor. Note that uniprocessor (UP) systems do not use an MP scheduler
daemon, but both MP and UP systems always have one UP STREAMS scheduler (supsched).
If the tunable value is set to zero, the system determines how many daemons to run, based on the number
of processors in the system. If the tunable value is set to a positive, non-zero value, that is the number of
smpsched daemons that will be created on an MP system.
Note: This tunable is for use by specific HP products only. It may be removed in future HP-UX releases.
Who Is Expected to Change This Tunable?
Any customer.
Restrictions on Changing
Changes to this tunable take effect at next reboot.
When Should the Value of This Tunable Be Raised?
This tunable is for use by specific HP products only. It may be removed in future HP-UX releases.
What Are the Side Effects of Raising the Value of This Tunable?
It could change the system performance unpredictably.
When Should the Value of This Tunable Be Lowered?
This tunable is for use by specific HP products only. It may be removed in future HP-UX releases.
What Are the Side Effects of Lowering the Value of This Tunable?
It could change the system performance unpredictably.
What Other Tunable Should Be Changed at the Same Time as This One?
None.
WARNINGS
This tunable is for use by specific HP products only.
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its
meaning changed in future releases of HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parame-
ter values. After installation, some tunable parameters may no longer be at the default or recommended
values. For information about the effects of installation on tunable values, consult the documentation for
the kernel software being installed. For information about optional kernel software that was factory
installed on your system, see HP-UX Release Notes at
http://www.hp.com/go/hpux-core-docs.
AUTHOR
NSTRSCHED was developed by HP.
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1