Home/Support/Support Forum/Cannot change the CONFIG_HZ value from Linux menuconfig
Welcome to Digi Forum, where you can ask questions and receive answers from other members of the community.

Cannot change the CONFIG_HZ value from Linux menuconfig

0 votes
I'd like to reduce the Linux kernel latency by setting CONFIG_HZ to different values until I can find a optimal performance for my application. This feature is not available on menuconfig, also if I change display options to show all the options and debug info I can see it depends on other stuff not related to ConnectCard Wi-iMX28. Changing it by hand might affect negatively the behavior of other code then I'd like to hear from you if anyone already had to change that before.
asked Aug 4, 2015 in Linux by areis New to the Community (4 points)

Please log in or register to answer this question.

1 Answer

+1 vote
 
Best answer
this may cause unpredictable side effects as this affects entire system timings. If you insist on changing it, you should start looking at your param.h file – probably kernel/linux/arch/arm/include/asm/param.h
Kernels 2.6.x have separate setting for ticks for kernel and user space so you are looking at CONFIG_HZ, HZ and USER_HZ defines
answered Aug 4, 2015 by LeonidM Veteran of the Digi Community (2,821 points)
selected Aug 4, 2015 by areis
...