Messages in this thread | | | Date | Mon, 26 Sep 2022 20:53:19 +0800 | Subject | Re: [External] Re: [RFC] proc: Add a new isolated /proc/pid/mempolicy type. | From | Zhongkun He <> |
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> [Cc linux-api - please do so for any patches making/updating > kernel<->user interfaces] > > > On Mon 26-09-22 17:10:33, hezhongkun wrote: >> From: Zhongkun He <hezhongkun.hzk@bytedance.com> >> >> /proc/pid/mempolicy can be used to check and adjust the userspace task's >> mempolicy dynamically.In many case, the application and the control plane >> are two separate systems. When the application is created, it doesn't know >> how to use memory, and it doesn't care. The control plane will decide the >> memory usage policy based on different reasons.In that case, we can >> dynamically adjust the mempolicy using /proc/pid/mempolicy interface. > > Is there any reason to make it procfs interface rather than pidfd one?
Hi michal, thanks for your reply.
I just think that it is easy to display and adjust the mempolicy using procfs. But it may not be suitable, I will send a pidfd_set_mempolicy patch later.
Btw.in order to add per-thread-group mempolicy, is it possible to add mempolicy in mm_struct?
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