Date: Mon, 11 Mar 2013 14:06:03 -0400 From: Mark Saad <nonesuch@longcount.org> To: FreeBSD-Stable ML <freebsd-stable@freebsd.org> Subject: Re: netisr issues Message-ID: <CAMXt9Nb-7Zm3jMY84LP-Q4PddrYtrG6nntcNoO6z3XVCCgKMaQ@mail.gmail.com> In-Reply-To: <CAOjFWZ7U-nNWhaXY05DmXDaccTTHqhC63cgus7B2XvxjqjFhOQ@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> <CAMXt9NaKDEwBE4k4EwriCN8iLMS_xgan=wPO2REq8cOFNO_dKw@mail.gmail.com> <CAOjFWZ7U-nNWhaXY05DmXDaccTTHqhC63cgus7B2XvxjqjFhOQ@mail.gmail.com>
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On Mon, Mar 11, 2013 at 12:48 PM, Freddie Cash <fjwcash@gmail.com> wrote: > On Mon, Mar 11, 2013 at 9:40 AM, Mark Saad <nonesuch@longcount.org> wrote: >> >> Freddie >> So should I be adjusting the numbers of threads or is this >> determined somewhere ? >> > I think it's supposed to be automatic, 1 thread per CPU, but I manually set > it via /boot/loader.conf: > net.isr.bindthreads="1" # Bind netisr threads to CPU > cores > net.isr.maxthreads="8" # Set number of threads to > number of CPU cores > net.isr.numthreads="8" # "" > > The net.isr.dispatch is automatically set to direct on our systems. Not > sure if that's the default or not. We used to set that via > /boot/loader.conf as well, but it was removed in the upgrade to 9-STABLE > something as it no longer did anything. > > -- > Freddie Cash > fjwcash@gmail.com Just so I am clear , prior to r222249 by rwatson net.isr.direct=1 enabled the same interaction as net.isr.dispatch=deferred after the commit , with the latter commit enabling netisr to have mulch-threaded support ? -- mark saad | nonesuch@longcount.org
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