Hi,
The mentioned article describes the implications of altering HZ kernel
value but to me it only opened new questions:
1. Having a running server, how and what to monitor in various HZ
values in order to evaluate benefits/drawbacks of different HZ speeds?
2. In the case of process preemption (not time slice expiration), is
the HZ value a factor at all? same here if a process initiates a
stop such as I/O request.
3. How are timers effected when using SYSCALLS such as setitimer().
Would low HZ value result in low timer resolution? - Here also is
the issue of activating the SIGALRM (or equivalents) signal handler.
--
Regards.
David Harel,
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