Re: [PATCH v2 2/2] docs: scheduler-rt: Clarify & fix sched_rt_* sysctl docs

From: Ingo Molnar
Date: Thu Sep 28 2023 - 05:19:03 EST



* Cyril Hrubis <chrubis@xxxxxxx> wrote:

> - Describe explicitly that sched_rt_runtime_us is allocated from
> sched_rt_period_us and hence always less or equal to that value.

Just some spelling nits:

> - The limit for sched_rt_runtime_us is not INT_MAX - 1 but rather it's
> limited by the value of sched_rt_period_us. If sched_rt_period_us is
> INT_MAX then sched_rt_runtime_us can be set to INT_MAX as well.

s/is not INT_MAX - 1 but rather it's
/is not INT_MAX-1, but rather it's

> /proc/sys/kernel/sched_rt_runtime_us:
> - A global limit on how much time realtime scheduling may use. Even without
> - CONFIG_RT_GROUP_SCHED enabled, this will limit time reserved to realtime
> - processes. With CONFIG_RT_GROUP_SCHED it signifies the total bandwidth
> - available to all realtime groups.
> + A global limit on how much time realtime scheduling may use. This is always

s/realtime
/real-time

> + less or equal than the period_us as it denotes the time allocated from the

s/than the period_us as it denotes
/than the period_us, as it denotes

> + period_us for the realtime tasks. Even without CONFIG_RT_GROUP_SCHED enabled,
> + this will limit time reserved to realtime processes. With

s/realtime
/real-time

> + CONFIG_RT_GROUP_SCHED it signifies the total bandwidth available to all

s/CONFIG_RT_GROUP_SCHED
/CONFIG_RT_GROUP_SCHED=y

> + realtime groups.

s/realtime
/real-time

Thanks,

Ingo