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From: "张元瀚 Tio Zhang" <tiozhang@didiglobal.com>
To: "wang.yaxin@zte.com.cn" <wang.yaxin@zte.com.cn>,
	"peterz@infradead.org" <peterz@infradead.org>
Cc: "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"fan.yu9@zte.com.cn" <fan.yu9@zte.com.cn>,
	"corbet@lwn.net" <corbet@lwn.net>,
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	"mingo@redhat.com" <mingo@redhat.com>,
	"peterz@infradead.org" <peterz@infradead.org>,
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	"vschneid@redhat.com" <vschneid@redhat.com>,
	"jiang.kun2@zte.com.cn" <jiang.kun2@zte.com.cn>,
	"xu.xin16@zte.com.cn" <xu.xin16@zte.com.cn>,
	"zyhtheonly@gmail.com" <zyhtheonly@gmail.com>,
	"zyhtheonly@yeah.net" <zyhtheonly@yeah.net>
Subject: Re: [PATCH v3] delayaccy/sched: add SOFTIRQ delay
Date: Tue, 16 Sep 2025 09:12:39 +0000	[thread overview]
Message-ID: <C126DFBF-863E-46AB-BD62-A9E720B3E68F@didiglobal.com> (raw)
In-Reply-To: <20250830142944929e1M6lffs_PwvPfl7J-R1g@zte.com.cn>


>>Intro SOFTIRQ delay, so we can separate softirq as SOFTIRQ delay
>>and hardirq as {IRQ - SOFTIRQ} delay.
>>
>>A typical scenario is when tasks delayed by network,
>>if they delayed by rx net packets, i.e, net_rx_action(),
>>SOFTIRQ delay is almost same as IRQ delay;
>>if they delayed by, e.g, bad driver or broken hardware,
>>SOFTIRQ delay is almost 0 while IRQ delay remains big.
>>
>>Examples tool usage could be found in
>>Documentation/accounting/delay-accounting.rst
>>
>>Signed-off-by: Tio Zhang <tiozhang@didiglobal.com <mailto:tiozhang@didiglobal.com>>


>Reviewed-by: Wang Yaxin <wang.yaxin@zte.com.cn <mailto:wang.yaxin@zte.com.cn>>


>Thanks
>Yaxin

Hi Peter,

Gentle ping. Wondering if you have any further comments?

Thanks for your time.

Best,
Tio Zhang


  reply	other threads:[~2025-09-16  9:15 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-19  9:27 [PATCH] delayacct/sched: add SOFTIRQ delay Tio Zhang
2025-08-19 10:14 ` Peter Zijlstra
2025-08-20  8:13   ` Tio Zhang
2025-08-20  8:19     ` [PATCH v2] delayaccy/sched: " Tio Zhang
2025-08-27  3:14       ` wang.yaxin
2025-08-28  9:26         ` [PATCH v3] " Tio Zhang
2025-08-30  6:25           ` wang.yaxin
2025-08-30  6:29           ` wang.yaxin
2025-09-16  9:12             ` 张元瀚 Tio Zhang [this message]
2025-08-20  0:27 ` [PATCH] delayacct/sched: " kernel test robot

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