Dear Sebastian, Sorry for the delayed response. Yes, I mean the cgroup support in Linux. The change in the path value referring to the creation of sets of cores does not take into effect although I checked the CPUSET configuration to be enabled after installing the preempt-rt patch. I rechecked whenever I reinstall the kernel without preempt-rt it becomes enabled and works perfectly. I figured out how to use the application level of cpuset configuration like assigning cpus through cpu_set_t on a c-code but in kernel level it still doesn't support. However, I checked the preempt rt in my laptop and it seems it works perfectly with c-group and this issue is only in embedded system Linux kernel of jetson tx2. Best, Mohammad ________________________________________ From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> Sent: Friday, October 4, 2024 3:14 AM To: Mohammad Pivezhandi <pivezhandi@xxxxxxxxx> Cc: linux-rt-users@xxxxxxxxxxxxxxx <linux-rt-users@xxxxxxxxxxxxxxx> Subject: Re: Problem with using CPUSET along with preempt-rt patch on jetpack 4.6 linux kernel [EXTERNAL] On 2024-09-27 14:56:51 [+0000], Mohammad Pivezhandi wrote: > Hello, Hi, > I am working with jetson tx2 and got issues with cpu isolation through > cpuset when I apply preempt-rt patch. I use jetson linux 32.7.5 from > jetpack 4.6.5 and after applying the preempt-rt patch it disables the > cpuset for assigning core to the tasks. Without preempt rt the core > isolation works perfectly, and I am wondering if there is any fixation > to my problem. Thanks for your help in advance. By cpuset you I guess you mean cgroup with cpuset support. What do you mean that it does not work? I don't remember that something has been here. > Best, > Mohammad Sebastian
