## Timer Interrupt Frequency Configuration# choice	prompt "Timer frequency"	default HZ_250	help	 Allows the configuration of the timer frequency. It is customary	 to have the timer interrupt run at 1000 HZ but 100 HZ may be more	 beneficial for servers and NUMA systems that do not need to have	 a fast response for user interaction and that may experience bus	 contention and cacheline bounces as a result of timer interrupts.	 Note that the timer interrupt occurs on each processor in an SMP	 environment leading to NR_CPUS * HZ number of timer interrupts	 per second.  	config HZ_100		bool "100 HZ"	help	  100 HZ is a typical choice for servers, SMP and NUMA systems	  with lots of processors that may show reduced performance if	  too many timer interrupts are occurring. 	config HZ_250		bool "250 HZ"	help	 250 HZ is a good compromise choice allowing server performance	 while also showing good interactive responsiveness even	 on SMP and NUMA systems. 	config HZ_1000		bool "1000 HZ"	help	 1000 HZ is the preferred choice for desktop systems and other	 systems requiring fast interactive responses to events. endchoice config HZ	int	default 100 if HZ_100	default 250 if HZ_250	default 1000 if HZ_1000