linux-kernel - Re: [PATCH linux-next] net: record times of netdev

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Message-ID: <202212080912066313234@zte.com.cn>
Date:   Thu, 8 Dec 2022 09:12:06 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <kuba@...nel.org>
Cc:     <edumazet@...gle.com>, <davem@...emloft.net>, <pabeni@...hat.com>,
        <bigeasy@...utronix.de>, <imagedong@...cent.com>,
        <kuniyu@...zon.com>, <petrm@...dia.com>, <liu3101@...due.edu>,
        <wujianguo@...natelecom.cn>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <tedheadster@...il.com>
Subject: Re: [PATCH linux-next] net: record times of netdev_budget exhausted

> In my experience - no this is not useful.

Received, thanks!

> Sorry if this is too direct, but it seems to me like you're trying hard
> to find something useful to do in this area without a clear use case. 
I see maybe this is a too special scenes, not suitable. The motivation
is we see lots of time_squeeze on our working machines, and want to
tuning, but our kernel are not ready to use threaded NAPI. And we
did see performance difference on different netdev_budget* in
preliminary tests.

> We have coding tasks which would definitely be useful and which nobody
> has time to accomplish. Please ask if you're trying to find something
> to do.

We focus on 5G telecom machine, which has huge TIPC packets in the
intranet. If it's related, we are glad to do it with much appreciate of your
indicate!

Thanks.