maxuprc(5) [hpux man page]

maxuprc(5)							File Formats Manual							maxuprc(5)

NAME

       maxuprc - limits the maximum number of concurrent user processes per user

VALUES

   Failsafe
   Default
   Allowed values
   Recommended value
DESCRIPTION

       is a dynamic tunable that limits the maximum number of processes per user.  Only root can have more than the number of processes limited by

   Who is Expected to Change This Tunable?
       System administrators can change the value of depending on the usage of the system.

   Restrictions on Changing
       None.  This tunable is dynamic.

   When Should the Value of This Tunable Be Raised?
       The  value  of should be changed if users require more processes than what they are currently allowed by If fails with an error value of it
       could be an indication that was reached by that particular user.  However, that is not the only reason that could cause	to  fail  with	an
       errno value of may be returned if system tunable has been reached or memory on the system has been exhausted.

   What Are the Side Effects of Raising the Value?
       Raising the value of allows a single user to consume a greater percentage of the system resources.

   When Should the Value of This Tunable Be Lowered?
       The value of should be lowered when individual users are monopolizing system resources by running too many concurrent processes.

   What Are the Side Effects of Lowering the Value?
       Applications  that  depend  on a large number of processes may behave differently or fail.  Existing processes will continue to run but new
       process creations which would result in the user exceeding will fail.

   What Other Tunable Values Should Be Changed at the Same Time?
       When tuning you should keep in mind the value of

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.

SEE ALSO

       nproc(5).

							     Tunable Kernel Parameters							maxuprc(5)

NSTREVENT(5)							File Formats Manual						      NSTREVENT(5)

NAME

       NSTREVENT - maximum number of outstanding STREAMS bufcalls

VALUES

   Failsafe
   Default
   Allowed values
   Recommended values
DESCRIPTION

       This tunable limits the maximum number of outstanding that are allowed to exist in the system at any given time.

       This  tunable is intended to protect the system against resource overload caused by the combination of modules running in all streams issu-
       ing an excessive number of The value selected should be equal to or greater than the combined maximum number  of  that  can  be	reasonably
       expected during normal operation from all streams on the system.  are used by STREAMS modules in low memory situations.

   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?
       When the system has a lot of low memory situations.

   What Are the Side Effects of Raising the Value of This Tunable?
       If  too	big  a	number	is  chosen,  the STREAMS subsystem preallocates more memory for internal data structures than may be needed.  This
       reduces the amount of  memory available to applications and the system.

   When Should the Value of This Tunable Be Lowered?
       If the tunable is increased for a particular STREAMS module/driver, this tunable can be lowered when that STREAMS module/driver is removed.
       It should be returned to its previous value.  However, HP does not recommend a value lower than the default value.

   What Are the Side Effects of Lowering the Value of This Tunable?
       During low memory situations, it will bring down system performance.

   What Other Tunable Should Be Changed at the Same Time as This One?
       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						      NSTREVENT(5)