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Date:      Mon, 11 Mar 2013 09:26:43 -0700
From:      Freddie Cash <fjwcash@gmail.com>
To:        Mark Saad <nonesuch@longcount.org>
Cc:        FreeBSD-Stable ML <freebsd-stable@freebsd.org>
Subject:   Re: netisr issues
Message-ID:  <CAOjFWZ6r=kbgFgwkujAvVE9K9JGWuRwWc_CZYEqsMMaY4f6DuA@mail.gmail.com>
In-Reply-To: <CAOjFWZ5rrAyEu9h7Q3NgmFFY%2B3HQuub=-vUPehU8POyRQ=Jh0A@mail.gmail.com>
References:  <CAMXt9NY6-jm-DEBk6WN5PXgAd4%2BBND4WVfqiSdtqoKzyYcRm3Q@mail.gmail.com> <CAOjFWZ5EC8w6FsjgLPskSEzcw=O6WRSsQf5jbMGFs90P7qVkqA@mail.gmail.com> <CAMXt9NaTSgp0UD5E=8LAC_Q66Ar8YHBp5HqSEGejRWfkmvwjag@mail.gmail.com> <CAOjFWZ5rrAyEu9h7Q3NgmFFY%2B3HQuub=-vUPehU8POyRQ=Jh0A@mail.gmail.com>

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I seem to recall that the method for setting "direct" changed so that it's
not a binary option (net.isr.direct), but instead is a policy setting now
(net.isr.dispatch).  Try:

net.isr.dispatch="direct"

That's what's set on our 9.1-STABLE systems:
# sysctl net.isr
net.isr.numthreads: 8
net.isr.maxprot: 16
net.isr.defaultqlimit: 256
net.isr.maxqlimit: 10240
net.isr.bindthreads: 1
net.isr.maxthreads: 8
net.isr.direct: 0
net.isr.direct_force: 0
net.isr.dispatch: direct

# netstat -Q | head
Configuration:
Setting                        Current        Limit
Thread count                         8            8
Default queue limit                256        10240
Dispatch policy                 direct          n/a
Threads bound to CPUs          enabled          n/a



On Mon, Mar 11, 2013 at 9:22 AM, Freddie Cash <fjwcash@gmail.com> wrote:

> You're right.  I was looking at different net.isr oids, not the _direct
> ones.  My bad.
>
>
> On Mon, Mar 11, 2013 at 9:17 AM, Mark Saad <nonesuch@longcount.org> wrote:
>
>> On Mon, Mar 11, 2013 at 12:11 PM, Freddie Cash <fjwcash@gmail.com> wrote:
>> > Works if you set them in /etc/sysctl.conf.  Haven't looked into it, but
>> I
>> > think there's something in the startup that sets them to 0 after the
>> kernel
>> > is loaded, so the loader.conf settings are overwritten.
>> >
>> >
>> > On Mon, Mar 11, 2013 at 7:42 AM, Mark Saad <nonesuch@longcount.org>
>> wrote:
>> >>
>> >> All
>> >>  I am looking for some guidance on how to turn netisr back on, on a
>> >> 9.1-RELEASE and 9.1-STABLE box. It looks it stopped working as it did
>> in
>> >> prior versions of FreeBSD .
>> >> I tested this on 9.1-RELEASE and  9.1-STABLE #0 r247804 built last
>> monday.
>> >>
>> >> My question is this. If I enable the direct option in boot/loader.conf
>> via
>> >> this
>> >>
>> >> net.isr.direct="1"
>> >> net.isr.direct_force="1"
>> >>
>> >> I do not get any expected result.
>> >>
>> >> root@chambers:~ # sysctl net.isr.direct
>> >> net.isr.direct: 0
>> >> root@chambers:~ # sysctl net.isr.direct_force
>> >> net.isr.direct_force: 0
>> >>
>> >> root@chambers:~ # netstat -Q
>> >> Configuration:
>> >> Setting                        Current        Limit
>> >> Thread count                         1            1
>> >> Default queue limit                256        10240
>> >> Dispatch policy                 direct          n/a
>> >> Threads bound to CPUs         disabled          n/a
>> >>
>> >> ....
>> >>
>> >>
>> >> Am I missing something ?
>> >>
>> >>
>> >> --
>> >> mark saad | nonesuch@longcount.org
>> >> _______________________________________________
>> >> freebsd-stable@freebsd.org mailing list
>> >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>> >> To unsubscribe, send any mail to "
>> freebsd-stable-unsubscribe@freebsd.org"
>> >
>> >
>> >
>> >
>> > --
>> > Freddie Cash
>> > fjwcash@gmail.com
>>
>> Freddie
>>   When I tried to set them in /etc/sysctl.conf , sysctl stated they
>> were read-only .
>>
>> [root@mkr2 /etc]# sysctl -w net.isr.direct=1
>> sysctl: oid 'net.isr.direct' is read only
>>
>>
>> [root@mkr2 /etc]# sysctl -w net.isr.direct_force=1
>> sysctl: oid 'net.isr.direct_force' is read only
>>
>> --
>> mark saad | nonesuch@longcount.org
>> _______________________________________________
>> freebsd-stable@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
>>
>
>
>
> --
> Freddie Cash
> fjwcash@gmail.com
>



-- 
Freddie Cash
fjwcash@gmail.com



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