05-22-2019
Unfortunately, as i see it, climate change is, so to say, a done deal.
We can only amend and prepare for the upcoming and current consequences of changes we caused.
Things are moving, but to slow, chained by infinite layers of bureaucracy and responsibility shifting.
A change in <insert industry> which will benefit the environment but lower the profit, we shall postpone, give time, adjust, consult, sue ...
Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
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LEARN ABOUT HPUX
tcphashsz
tcphashsz(5) File Formats Manual tcphashsz(5)
NAME
tcphashsz - determines the size of the networking hash tables
VALUES
Failsafe
Default
Allowed values
Recommended values
A value of 0 (default) will adjust the in proportion to the number of cores in the system. If is set to a non zero value, it should be
specified as a power of two. Otherwise, it will be rounded down to the nearest power of two.
DESCRIPTION
This variable is used to set the size of the networking hash tables. HP recommends that the value of be set to 0 so that the system can
choose an optimal value. A system that is going to have a large number of connections on it all of the time may see some benefit of
increasing this value, beyond the number determined by the system.
If this tunable is not set to zero, then it needs to be a power of two. If it is not specified as a power of two, then it is rounded down
to the nearest power of two. If this tunable is set in the range of 1 to 255, then it will be increased to 256.
Who Is Expected to Change This Tunable?
Anyone.
Restrictions on Changing
Changes to this tunable take effect at the next reboot.
When Should the Value of This Tunable Be Raised?
This value may be raised in the case of a machine with a large number of connections that last for an extended period of time.
What Are the Side Effects of Raising the Value?
More memory is used when this value is raised.
When Should the Value of This Tunable Be Lowered?
If a system is tight on memory and it has just a few connections on it, then lowering the value may reclaim some memory.
What Are the Side Effects of Lowering the Value?
If is set too low, the system will have long hash chains which will slow it down.
What Other Tunables Should Be Changed at the Same Time?
None.
WARNINGS
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 parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by HP.
Tunable Kernel Parameters tcphashsz(5)