Re: [PATCH v2] sched/Documentation: Add RT_RUNTIME_SHARE documentation

From: Bagas Sanjaya
Date: Fri Apr 19 2024 - 07:56:28 EST


On Fri, Apr 19, 2024 at 05:04:32PM +0800, Zhang Qiao wrote:
> +2.4 RT_RUNTIME_SHARE sched feature
> +----------------------------------
> +
> +RT_RUNTIME_SHARE allows a cpu to borrow rt-runtime from other cpus if it runs
> +out of its own rt-runtime.
> +
> +With this feature enabled, a rt-task may hit 100% cpu usage and can stall other
> +per-cpu tasks like kworkers, as a result, which leads into system hang.
> +
> +Thus, it is advised to disable this feature by default to avoid aforementioned
> +issue unless you know what you're doing.
>
> 3. Future plans
> ===============

LGTM, thanks!

Reviewed-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx>

--
An old man doll... just what I always wanted! - Clara

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