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Date:      Wed, 23 Jan 2019 08:39:41 +0100 (CET)
From:      Wojciech Puchar <wojtek@puchar.net>
To:        Mark Saad <nonesuch@longcount.org>
Cc:        FreeBSD Hackers <freebsd-hackers@freebsd.org>
Subject:   Re: CPU Isolation
Message-ID:  <alpine.BSF.2.20.1901230839300.59235@puchar.net>
In-Reply-To: <CAMXt9NbKwZAwv%2BWJ4yqmeMFmX38n=qjUqJSq4kOq2qdNSVEhHg@mail.gmail.com>
References:  <CAMXt9NbKwZAwv%2BWJ4yqmeMFmX38n=qjUqJSq4kOq2qdNSVEhHg@mail.gmail.com>

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man cpuset

On Tue, 22 Jan 2019, Mark Saad wrote:

> All
> I am looking to setup a 12-STABLE box in a way that is similar to a
> CentOS server I am running.
> That server is setup using the boot option isocpus, to remove
> cores/cpus from the kernel scheduler at boot.  What I want to try on
> 12-STABLE is to set aside some cores to run process and some kernel
> threads that will only always run on a dedicated core with out the
> chance for being preempted / interrupted by something else on that
> core / cpu . What I do not see is a way to  evict processes off a
> running cpu post boot or a way to isolate them preboot. Am  I missing
> something?
>
> -- 
> mark saad | nonesuch@longcount.org
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>



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