linux-kernel - Re: ???UNSURE??? Re: Unwanted activation of root-processes getting highly activated

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Message-ID: <nwmbn5ljrnojusbpg2gicmti.1634315753655@email.android.com>
Date:   Fri, 15 Oct 2021 18:35:53 +0200
From:   andreas-stoewing <andreas-stoewing@....de>
To:     Theodore Ts'o <tytso@....edu>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: ???UNSURE??? Re: Unwanted activation of root-processes getting
 highly activated

Listed processes get already highly active during the start of pale moon, before the surfing itself. No webside is called, when it already happens. 


Gesendet von Andreas

Am 14.10.2021 20:27 schrieb Theodore Ts'o <tytso@....edu>:
>
> On Thu, Oct 14, 2021 at 12:40:08PM +0000, secret wrote: 
> > Hi, 
> > Firejail must have caused the high activity. 
> > Whenever I stop it (process firejail), they lower to origin. 
>
> This is what I had been trying to tell you repeatedly.  Firejail 
> (firefox run in a sandbox/jail) is a browser which will do various 
> activities on behalf of whatever web pages that you visit.  Some of 
> these webpages may have javascript, or other web-based application 
> code which is causing a lot of file I/O.  So when visiting that web 
> page causes firefox to execute a lot of file I/O, on behalf of the web 
> site, in order to service the file I/O, the kernel will do that work 
> in the kernel threads that you seem to be objecting to having 
> activity. 
>
> However, those kernel threads being active when there is file I/O is 
> *normal*.  It is the system working as intended.  I don't know why you 
> would be objecting to those kernel threads being active, but if you 
> don't like it, don't do any file I/O, and if that means not using 
> firefox (or "firejail") to visit those web sites. 
>
> Regards, 
>
> - Ted