Cpu-1 core isolation using tickless linux kernel

[Pandey__Pankaj]

Hi, 

I am working on core-isolation for 64-bit-x86  target by running linux-4.9 kernel.  I am able to achieve 100% cpu-1 idle using "cset shield -k on -f -c 1"  but when  I check "cat /proc/interrupt" status, observed that all interrupts increment got  stopped except  "Local timer interrupts" and "Function call interrupts" on cpu-1. 

 Is that expected  that  both "Local timer interrupts" and "Function call interrupts" is not getting stop in full tickless kernel  when cpu-1 in core isolation ? if yes than why ?  and if it  is possible to stop these interrupts on x86 than please let me know what changes we need  ?

Any pointer is highly appreciated. 

TIA !!

Regards,

Pankaj Pandey

[TimP]

Evidently, the question doesn't pertain to Intel Xeon phi.  Perhaps you could rephrase or present an example and make it topical for another forum.