Help me to understand the POSIX timers

[Thomas Bushnell, BSG]

george anzinger <george@mvista.com> writes:

> I am trying to figure out how to integrate the high-res-timers (see
> signature) stuff into glibc without loosing functionality.  The standard
> says that these timers should time execution time, and I need to
> understand how they do that.

Well, they really have to be implemented with kernel support; that is,
principally with kernel support, rather just like ordinary old
pre-threads itimers.