SCHED_DEADLINE as user

hi all,

i wonder, what's the preferred way to obtain SCHED_DEADLINE privileges
as non-root user?
for SCHED_RR/SCHED_FIFO i'm typically using pam_limits/limits.conf, but
i haven't found any resources on how SCHED_DEADLINE can be obtained ...

thanks in advance,
tim

On 08/15/2018 08:08 AM, Tim Blechmann wrote:

hi all,

i wonder, what's the preferred way to obtain SCHED_DEADLINE privileges
as non-root user?

Hi Tim,

It is still not possible to use sched deadline as a non-root user :-(.

Thanks
-- Daniel

for SCHED_RR/SCHED_FIFO i'm typically using pam_limits/limits.conf, but
i haven't found any resources on how SCHED_DEADLINE can be obtained ...

thanks in advance,
tim

Hi Tim,

On 15/08/18 10:21, Daniel Bristot de Oliveira wrote:

On 08/15/2018 08:08 AM, Tim Blechmann wrote:

quoted

hi all,

i wonder, what's the preferred way to obtain SCHED_DEADLINE privileges
as non-root user?

Hi Tim,

It is still not possible to use sched deadline as a non-root user :-(.

Indeed, but Tim, is this hindering you from experimenting/using
DEADLINE?

Asking because we might want to have a look at how to relax the current
privileges requirement.

Best,

- Juri

hi juri,

quoted

quoted

i wonder, what's the preferred way to obtain SCHED_DEADLINE privileges
as non-root user?

Hi Tim,

It is still not possible to use sched deadline as a non-root user :-(.

Indeed, but Tim, is this hindering you from experimenting/using
DEADLINE?

it's a showstopper for using it in audio applications, which are running
as user.
audio applications typically use SCHED_FIFO. however they are
rate-monotonic by design, so i wanted to evaluate how SCHED_DEADLINE
behaves here.

Asking because we might want to have a look at how to relax the current
privileges requirement.

please :)

cheers,
tim

On 17/08/18 18:08, Tim Blechmann wrote:

hi juri,

quoted

quoted

quoted

i wonder, what's the preferred way to obtain SCHED_DEADLINE privileges
as non-root user?

Hi Tim,

It is still not possible to use sched deadline as a non-root user :-(.

Indeed, but Tim, is this hindering you from experimenting/using
DEADLINE?

it's a showstopper for using it in audio applications, which are running
as user.
audio applications typically use SCHED_FIFO. however they are
rate-monotonic by design, so i wanted to evaluate how SCHED_DEADLINE
behaves here.

Right. Exactly what I started to think about lately as well.

quoted

Asking because we might want to have a look at how to relax the current
privileges requirement.

please :)

Anything to try attracting new users. :-P

More seriously, could you please describe in a bit more details your
specific use case? Based on JACK I guess? Is it the application you are
interested into public available somewhere?

Thanks,

- Juri