linux-kernel - Re: [PATCH] workqueue: Control the frequency of intensive warning through cmdline

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Date: Mon, 19 Feb 2024 08:00:52 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: Xuewen Yan <xuewen.yan@...soc.com>, tj@...nel.org,
 jiangshanlai@...il.com, corbet@....net
Cc: paulmck@...nel.org, peterz@...radead.org, yanjiewtw@...il.com,
 linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, ke.wang@...soc.com,
 xuewen.yan94@...il.com
Subject: Re: [PATCH] workqueue: Control the frequency of intensive warning
 through cmdline



On 2/18/24 23:46, Xuewen Yan wrote:
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 31b3a25680d0..599fc59fcf70 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -7225,6 +7225,15 @@
>  			threshold repeatedly. They are likely good
>  			candidates for using WQ_UNBOUND workqueues instead.
>  
> +	workqueue.cpu_intensive_warning_per_count=

	workqueue.cpu_intensive_warning_per_count=<uint>
or
	                                          <integer>

> +			If CONFIG_WQ_CPU_INTENSIVE_REPORT is set, the kernel
> +			will report the work functions which violate the
> +			intensive_threshold_us repeatedly. In order to prevent
> +			the kernel log from being printed too frequently.

			                                      frequently,
			control

> +			Control the frequency.
> +
> +			Default, it will print one warning per 4 times.

			By default,

> +

-- 
#Randy