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SubjectRe: [PATCH 12/14] block: introduce blk-iolatency io controller
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On 07/03/2018 08:15 AM, Josef Bacik wrote:
> diff --git a/block/Kconfig b/block/Kconfig
> index 28ec55752b68..074c6099c31f 100644
> --- a/block/Kconfig
> +++ b/block/Kconfig
> @@ -149,6 +149,18 @@ config BLK_WBT
> dynamically on an algorithm loosely based on CoDel, factoring in
> the realtime performance of the disk.
>
> +config BLK_CGROUP_IOLATENCY
> + bool "Enable support for latency based cgroup IO protection"
> + depends on BLK_CGROUP=y
> + default n
> + ---help---
> + Enabling this option enables the .latency interface for IO throttling.
> + The IO controller will attempt to maintain average IO latencies below
> + the configured latency target, throttling anybody with a higher latency

Could that be: any process {or any task}
I don't want to see it throttling any bodies.

> + target than the victimized group.
> +
> + Note, this is an experimental interface and could be changed someday.
> +
> config BLK_WBT_SQ
> bool "Single queue writeback throttling"
> default n


--
~Randy

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