Date: Wed, 11 Jan 2017 16:18:55 -0500 From: Allan Jude <allanjude@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: HEADS-UP: IFLIB implementations of sys/dev/e1000 em, lem, igb pending Message-ID: <54b63045-998a-aad7-6e65-44f24377672c@freebsd.org> In-Reply-To: <1598f3f8588.d20017893749.339651164872952258@nextbsd.org> References: <30f21c75-d3a2-edcd-1999-d5ed9f970c06@freebsd.org> <b000a957-8d17-a04d-6275-0d3920aa8a17@freebsd.org> <CA%2Bq%2BTcramTrYgYT-s%2B=aBZzRJV8FmKQqGt=1twPhLBR7AoXkcQ@mail.gmail.com> <1598d97bf2a.c6bcb76838987.6501340920645175463@nextbsd.org> <574a7ac7-4842-9518-8286-a4d89a9f7a27@freebsd.org> <CA%2Bq%2BTco-dcoU8EZnDEzgoK-v2Q2=U5GF6ASMSj0kwzd_wB5xig@mail.gmail.com> <6c6cb534-73c7-464b-8af1-7445a9c0188c@freebsd.org> <1598f29d379.ea6360351471.8752933472741761813@nextbsd.org> <CA%2Bq%2BTcpUXXPEQtdMFup6EZzyCKs9Ep%2BnS5SB%2Bfm6bSJSDs34_w@mail.gmail.com> <1598f3f8588.d20017893749.339651164872952258@nextbsd.org>
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On 2017-01-11 15:37, Matthew Macy wrote: > You can still explicitly set the number of descriptors. It is now reported under the dev sysctl tree. dev.<device>.<unit>.<value> > > -M > > > ---- On Wed, 11 Jan 2017 12:34:23 -0800 Olivier Cochard-Labbé <olivier@freebsd.org> wrote ---- > > > > On Wed, Jan 11, 2017 at 9:13 PM, Matthew Macy <mmacy@nextbsd.org> wrote: > > > > > Hmmm ... did your old tests do 4 or 8 queues on this hardware? > > > > > > Did the old tests run 1024 tx/rx slots or the max 4096? > > > > That's a great point, only having one thread per core could easily account for this. I'm hoping Sean can make txq != rxq work so that you can have 8txqs and 4 rxqs. > > > > > > The netgate RCC-VE 4860 is a 4 cores atom C2558E, and I'm using 2 of the 4 Gigabit Intel i350 ports. > > Lab detail: > > https://bsdrp.net/documentation/examples/forwarding_performance_lab_of_a_netgate_rcc-ve_4860 > > > > My tunning are (same for both test): > > hw.igb.rxd="2048" (it should be useless now) > > hw.igb.txd="2048" (it should be useless now) Matt: I think he meant "useless now" because there is no igb, and the below hw.em version covers it. > > hw.em.rxd="2048" > > hw.em.txd="2048" > > hw.igb.rx_process_limit="-1" (It should be useless now too) > > hw.em.rx_process_limit="-1" > > > > dev.igb.2.fc=0 > > dev.igb.3.fc=0 > > > > I can generate profiling data for you: what kind of data do you want ? > > > > > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > -- Allan Jude
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