linux-kernel - Re: [RFC] why can't dynamic isolation just like the static way

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Message-ID: <6b4fda32-b9b0-b8ce-968e-7e5a65a7e1f0@linux.alibaba.com>
Date:   Wed, 12 Feb 2020 09:35:18 +0800
From:   王贇 <yun.wang@...ux.alibaba.com>
To:     Steven Rostedt <rostedt@...dmis.org>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Ingo Molnar <mingo@...hat.com>, Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        "open list:SCHEDULER" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] why can't dynamic isolation just like the static way



On 2020/2/11 下午10:00, Steven Rostedt wrote:
> On Tue, 11 Feb 2020 12:43:50 +0100
> Peter Zijlstra <peterz@...radead.org> wrote:
> 
>> On Tue, Feb 11, 2020 at 04:17:34PM +0800, 王贇 wrote:
>>> Hi, folks
>>>
>>> We are dealing with isolcpus these days and try to do the isolation
>>> dynamically.
>>>
>>> The kernel doc lead us into the cpuset.sched_load_balance, it's fine
>>> to achieve the dynamic isolation with it, however we got problem with
>>> the systemd stuff.  
>>
>> Then don't use systemd :-) Also, if systemd is the problem, why are you
>> bugging us?
> 
> [ Background. Peter is someone that doesn't even use systemd. ;-) ]

I would be happy to get rid of that too ;-) but seems like it's getting
popular now as the basic init stuff, and I guess they have no idea about
how they are breaking the dynamic isolation.

Regards,
Michael Wang

> 
> -- Steve
>