Date: Mon, 11 Mar 2013 12:40:21 -0400 From: Mark Saad <nonesuch@longcount.org> To: FreeBSD-Stable ML <freebsd-stable@freebsd.org> Subject: Re: netisr issues Message-ID: <CAMXt9NaKDEwBE4k4EwriCN8iLMS_xgan=wPO2REq8cOFNO_dKw@mail.gmail.com> In-Reply-To: <CAOjFWZ6r=kbgFgwkujAvVE9K9JGWuRwWc_CZYEqsMMaY4f6DuA@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> <CAOjFWZ6r=kbgFgwkujAvVE9K9JGWuRwWc_CZYEqsMMaY4f6DuA@mail.gmail.com>
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On Mon, Mar 11, 2013 at 12:26 PM, Freddie Cash <fjwcash@gmail.com> wrote: > 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 Freddie So should I be adjusting the numbers of threads or is this determined somewhere ? -- mark saad | nonesuch@longcount.org
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