Re: [RFC v2] prctl: prctl(PR_SET_IDLE, PR_IDLE_MODE_KILLME), for stateless idle loops

From: Shawn Landden
Date: Sat Nov 18 2017 - 15:34:07 EST

On Fri, Nov 3, 2017 at 2:09 AM, Michal Hocko <mhocko@xxxxxxxxxx> wrote:
> On Thu 02-11-17 23:35:44, Shawn Landden wrote:
>> 16 bytes per process is kinda spendy, but I want to keep
>> lru behavior, which mem_score_adj does not allow. When a supervisor,
>> like Android's user input is keeping track this can be done in user-space.
>> It could be pulled out of task_struct if an cross-indexing additional
>> red-black tree is added to support pid-based lookup.
> This is still an abuse and the patch is wrong. We really do have an API
> to use I fail to see why you do not use it.
When I looked at wait_queue_head_t it was 20 bytes.