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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

aio_prio_delta_max

aio_prio_delta_max(5)						File Formats Manual					     aio_prio_delta_max(5)

NAME

       aio_prio_delta_max - greatest delta (slowdown factor) allowed in POSIX async IO request priorities

VALUES

   Failsafe
   Default
   Allowed values
       The minimum value allowed is The maximum value allowed is

       Specify a positive integer value.

DESCRIPTION

       This  parameter	places a limit on how much the priority of a POSIX asynchronous I/O operation can be reduced to slow it down.  This is the
       maximum priority-offset value allowed for in the asynchronous-I/O control block structure

   Who Is Expected to Change This Tunable?
       System administrators that run applications requiring heavy usage of POSIX AIO to file systems.

   Restrictions on Changing
       This tunable is dynamic (tuning will take effect immediately on the running system).

   What Other Tunables 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.

SEE ALSO

       kctune(1M), sam(1M), gettune(2), settune(2), aio(5).

							     Tunable Kernel Parameters					     aio_prio_delta_max(5)