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Special Forums News, Links, Events and Announcements Software Releases - RSS News ucommon 2.0.4 (Default branch)
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Old 02-01-2009
ucommon 2.0.4 (Default branch)
UCommon is a lightweight C++ library to facilitate using C++ design patterns even for very deeply embedded applications, such as for systems using uClibc along with POSIX threading support. For this reason, UCommon disables language features that consume memory or introduce runtime overhead. UCommon introduces some design patterns from Objective-C, such as reference counted objects, memory pools, and smart pointers. UCommon introduces some new concepts for handling of thread locking and synchronization. License: GNU General Public License v3 Changes:
Introduction of DCCP socket support. Improvements in multicast socket and cross-platform support. Image

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LEARN ABOUT HPUX

rtsched_numpri

rtsched_numpri(5)						File Formats Manual						 rtsched_numpri(5)

NAME

       rtsched_numpri - number of priority values to support for POSIX.1b realtime applications

VALUES

   Failsafe
   Default
   Allowed Values
       is allowed.

   Recommended Value
DESCRIPTION

       The  tunable defines how many priority values to support for POSIX 1.b realtime applications.  A larger value provides additional flexibil-
       ity to applications in managing relative priorities of all threads with respect to each other and with respect to other	applications  run-
       ning  in  the system.  However, a larger value adds processing overhead in the operating system in terms of managing larger run queues with
       the possibility of increased search times.

   Who Is Expected to Change This Tunable?
       Anyone.

   Restrictions on Changing
       Changes to this tunable take effect at next reboot.

   When Should the Value of This Tunable Be Raised?
       When the system is primarily running POSIX realtime applications, and requires additional flexibility in managing  relative  priorities	of
       applications.

   What Are the Side Effects of Raising the Value?
       Raising the value of the tunable may cause some operating system overhead due to larger and possibly more sparse run queues.

   When Should the Value of This Tunable Be Lowered?
       The default value of the tunable is already set to the minimum possible value.

   What Other Tunable Values 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						 rtsched_numpri(5)