hires_timeout_enable(5)hires_timeout_enable(5)NAMEhires_timeout_enable - enable high resolution timers support
unless applications require high resolution timers.
is a dynamic tunable that enables/disables support for high resolution
timers and timed sleep for the following Application Programming Inter‐
faces (APIs) - and With the higher resolution, these interfaces can be
expected to support time intervals less than the current 10 ms.
Who Is Expected to Change This Tunable?
System administrators who need higher than default resolution for
Restrictions on Changing
changes take effect immediately. However, changes to this tunable will
not affect timed events already queued.
When Should the Value of This Tunable Be Raised?
The value of should be set to if applications require higher resolution
for proper operation. Changes will be system-wide.
What Are the Side Effects of Raising the Value?
The number of timer-related interrupts may increase.
When Should the Value of This Tunable Be Lowered?
The value of may be set to if there is no longer any overriding need
for higher than default resolution.
What Are the Side Effects of Lowering the Value?
Fewer timer-related interrupts.
What Other Tunable Values Should Be Changed at the Same Time?
All HP-UX kernel tunable parameters are release specific. This parame‐
ter may be removed or have its meaning changed in future releases of
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 val‐
ues. For information about the effects of installation on tunable val‐
ues, consult the documentation for the kernel software being installed.
For information about optional kernel software that was factory
installed on your system, see at
was developed by HP.
SEE ALSOgetitimer(2), nanosleep(2), semop(2), setitimer(2), sigtimedwait(2),
timer_gettime(2), timer_settime(2), ualarm(2), usleep(2),
Tunable Kernel Parameters hires_timeout_enable(5)