On Thu, Nov 16, 2017 at 4:10 PM, Peter Zijlstra wrote:
> Well, I go by the one described in all the real-time computing texts;
> also found on Wikipedia FWIW:
>
> https://en.wikipedia.org/wiki/Priority_inheritance
Guess I was taking inheritance too literally :-)
>
>> This behavior is also rela
On Thu, Nov 16, 2017 at 02:03:13PM +0100, Martijn Coenen wrote:
> On Thu, Nov 16, 2017 at 12:27 PM, Peter Zijlstra wrote:
> > But that's exactly what you get!? How would it ever get below
> > min_node_prio? PI only ever (temporarily) raises prio, it never lowers
> > it.
>
> Ah I guess we have di
On Thu, Nov 16, 2017 at 12:27 PM, Peter Zijlstra wrote:
>> On Wed, Nov 15, 2017 at 2:01 PM, Peter Zijlstra wrote:
>> >> + * 1) binder supports a "minimum node priority", meaning that all
>> >> transactions
>> >> + *into a node must run at this priority at a minimum. This means
>> >> that th
On Thu, Nov 16, 2017 at 10:18:00AM +0100, Martijn Coenen wrote:
> Thanks Peter for looking at this, more inline.
So I think I'm having a very hard time understanding things because I've
no idea how android works. I've made a number of assumptions below;
please bear with me.
> On Wed, Nov 15, 2017
Thanks Peter for looking at this, more inline.
On Wed, Nov 15, 2017 at 2:01 PM, Peter Zijlstra wrote:
>> + * 1) binder supports a "minimum node priority", meaning that all
>> transactions
>> + *into a node must run at this priority at a minimum. This means that
>> the
>> + *desired prio
On Thu, Oct 26, 2017 at 04:07:45PM +0200, Martijn Coenen wrote:
> +/**
> + * binder_set_priority() - sets the scheduler priority of a task
> + * @task:task to set priority on
> + * @desired: desired priority to run at
> + *
> + * The scheduler policy of tasks is changed explicitly, because we w
Adds support for SCHED_BATCH/SCHED_FIFO/SCHED_RR priority inheritance
to the binder driver. The desired behavior is as follows:
Each thread in the binder threadpool runs at a default priority, which is
typically nice 0.
Binder nodes (endpoints that can receive binder transactions) can have a
mini
