7 Jun
2021
7 Jun
'21
13:54
Hi, for some reason PREEMPT is configured for 250? Am I missing something or is it by error? $: grep CONFIG_HZ /boot/config-5.3.18-lp152.75-preempt # CONFIG_HZ_PERIODIC is not set # CONFIG_HZ_100 is not set CONFIG_HZ_250=y # CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 Thomas On 6/7/21 3:00 PM, Takashi Iwai wrote:
Well, if HZ=1000 really helps, it implies that it's no requirement of the hard RT, and kernel-preempt flavor would work enough for that purpose.
AFAIK, kernel-preempt is available for Leap. And for TW, we're going to switch to the dynamic preempt, i.e. the preemption model is chosen via boot option.
Takashi