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Date:      Fri, 22 Mar 2013 16:10:16 -0400
From:      vasanth rao naik sabavat <vasanth.raonaik@gmail.com>
To:        Adrian Chadd <adrian@freebsd.org>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: preemptive kernel
Message-ID:  <CAAuizBhhpkr28GUXVUCNb%2BTaRftW_BbErUMw-sFf=dePE944KA@mail.gmail.com>
In-Reply-To: <CAJ-Vmombz4DC5Ggocy7N5gQxG7xzsKvzK_x=Hn%2BimDLe3460jQ@mail.gmail.com>
References:  <CAAuizBgsev6ZgNEuwvB0oZ4U_kJuL1ujMfGR5yy2A6HUAkqQ=g@mail.gmail.com> <CAJ-Vmombz4DC5Ggocy7N5gQxG7xzsKvzK_x=Hn%2BimDLe3460jQ@mail.gmail.com>

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Hi Adrian,

Just to clarify, is the kernel pre-emption involuntary?

Let say I have a kernel thread processing a huge list of entries, would
this thread get involuntarily context switched out because of kernel
preemption?

What is the time slice after which a kernel thread can involuntarily
context switched out?

Could you please point to the file in the source code which handles the
kernel pre-emption.

Thanks,
Vasanth

On Fri, Mar 22, 2013 at 4:00 PM, Adrian Chadd <adrian@freebsd.org> wrote:

> Yes.
>
>
>
> Adrian
>
>
> On 22 March 2013 12:09, vasanth rao naik sabavat
> <vasanth.raonaik@gmail.com> wrote:
> > Hi,
> >
> > Is the FreeBSD-10 kernel preemptive?
> >
> > --
> > Thanks,
> > Vasanth
> > _______________________________________________
> > freebsd-hackers@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> > To unsubscribe, send any mail to "
> freebsd-hackers-unsubscribe@freebsd.org"
>



-- 
Thanks,
Vasanth



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