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SubjectRe: [PATCH] docs: scheduler: Update new path for the sysctl knobs
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在 2022/8/16 20:19, Lukasz Luba 写道:
> Add missing update for the documentation bit of some scheduler knob.
> The knobs have been moved to /debug/sched/ location (with adjusted names).
>
> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>

Tested-by: Yanteng Si <siyanteng@loongson.cn>


CC Yizhou


Thanks,

Yanteng

> ---
> Documentation/scheduler/sched-design-CFS.rst | 2 +-
> Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/scheduler/sched-design-CFS.rst b/Documentation/scheduler/sched-design-CFS.rst
> index 59b2d1fb4dc4..03db55504515 100644
> --- a/Documentation/scheduler/sched-design-CFS.rst
> +++ b/Documentation/scheduler/sched-design-CFS.rst
> @@ -94,7 +94,7 @@ other HZ detail. Thus the CFS scheduler has no notion of "timeslices" in the
> way the previous scheduler had, and has no heuristics whatsoever. There is
> only one central tunable (you have to switch on CONFIG_SCHED_DEBUG):
>
> - /proc/sys/kernel/sched_min_granularity_ns
> + /sys/kernel/debug/sched/min_granularity_ns
>
> which can be used to tune the scheduler from "desktop" (i.e., low latencies) to
> "server" (i.e., good batching) workloads. It defaults to a setting suitable
> diff --git a/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst b/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst
> index 26b0f36f793d..3076402406c4 100644
> --- a/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst
> +++ b/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst
> @@ -80,7 +80,7 @@ p->se.vruntime。一旦p->se.vruntime变得足够大,其它的任务将成为
> CFS使用纳秒粒度的计时,不依赖于任何jiffies或HZ的细节。因此CFS并不像之前的调度器那样
> 有“时间片”的概念,也没有任何启发式的设计。唯一可调的参数(你需要打开CONFIG_SCHED_DEBUG)是:
>
> - /proc/sys/kernel/sched_min_granularity_ns
> + /sys/kernel/debug/sched/min_granularity_ns
>
> 它可以用来将调度器从“桌面”模式(也就是低时延)调节为“服务器”(也就是高批处理)模式。
> 它的默认设置是适合桌面的工作负载。SCHED_BATCH也被CFS调度器模块处理。

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