linux-kernel - Re: [boot-time] Please check this wiki page about RCU expedited mode

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Message-ID: <CAOgh=FyUkG8UZ9n8rme17ksRu2fhHcZnA3sCfcne3+j9zGW-kA@mail.gmail.com>
Date: Thu, 7 Nov 2024 11:48:13 +0000
From: Eric Curtin <ecurtin@...hat.com>
To: "Bird, Tim" <Tim.Bird@...y.com>
Cc: "linux-embedded@...r.kernel.org" <linux-embedded@...r.kernel.org>, 
	"edchong@...hat.com" <edchong@...hat.com>, Brian Masney <bmasney@...hat.com>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [boot-time] Please check this wiki page about RCU expedited mode

It looks great to me, it's probably kinda self-explanatory but we
could put that it's only relevant to RT-kernels here:

Kernel Version put kernel version here
Configuration list relevant kernel config options here

Is mise le meas/Regards,

Eric Curtin

On Thu, 7 Nov 2024 at 01:50, Bird, Tim <Tim.Bird@...y.com> wrote:
>
> Ed, Brian or Eric,
>
> Can you please take a look at this wiki page, and correct
> mistakes or add any material you think would be valuable.
>
> https://elinux.org/RCU_expedited_mode
>
> If you have a specific example of a boot time reduction
> from using this technique, can you add it to the case
> study listed at the bottom of the page.
>
> I copied some material from your devconf.us presentation.
>
> If you don't have elinux wiki accounts, you can just reply
> to this email with suggestions, and I'll change or add the material myself.
> One specific question I have is whether  this technique only applies
> to an RT kernel or not.
>
> IMHO we can collect information on various techniques on the wiki
> (including data about their savings on different systems and in
> different scenarios), and then migrate the material to an upstream
> kernel tuning guide when we've establish the general utility
> of the material.
>
> As an aside question - if it would be easier to just review the material
> on-list, let me know and I'll send the raw page (in mediawiki markup)
> to the list for email-style review.
>
> Thanks
>  -- Tim
>