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From: Yang Yang <yang.yang29@zte.com.cn>
To: akpm@linux-foundation.org
Cc: a.p.zijlstra@chello.nl, bsingharora@gmail.com, corbet@lwn.net,
	juri.lelli@redhat.com, linux-doc@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, mingo@redhat.com, yang.yang29@zte.com.cn,
	wang.yong12@zte.com.cn, huang.junhua@zte.com.cn,
	jiang.xuexin@zte.com.cn
Subject: Re: [PATCH linux-next] delayacct: track delays from IRQ/SOFTIRQ
Date: Tue, 11 Apr 2023 14:51:09 +0800	[thread overview]
Message-ID: <20230411065109.172037-1-yang.yang29@zte.com.cn> (raw)
In-Reply-To: <20230410213129.1d11261892767a61eacaefba@linux-foundation.org>

> We're somewhat double-accounting.  Delays due to, for example, IO will
> already include delays from IRQ activity.  But it's presumably a minor
> thing and I don't see why anyone would care.

Thanks for your reviewing! I also think double-accounting should be OK, some
one who is tunning IO or IRQ could focus on the related delay respectively.
And PSI has the same logic when calculate IRQ or IO pressure. 

      reply	other threads:[~2023-04-11  6:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-08  9:28 yang.yang29
2023-04-11  4:31 ` Andrew Morton
2023-04-11  6:51   ` Yang Yang [this message]

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