Date: Sun, 28 Mar 2021 11:51:48 +0200 From: Kurt Jaeger <pi@freebsd.org> To: Kevin Bowling <kevin.bowling@kev009.com> Cc: freebsd-net@freebsd.org Subject: Re: Which cpu/mainboard for fast routing (bgp, full tables) ? Message-ID: <YGBRtHBbImA9C2T5@fc.opsec.eu> In-Reply-To: <CAK7dMtDnD3yeJ_sNa8Wg8ppHUBTzEN=VqGvPh7iN1Ps=Pshg1g@mail.gmail.com> References: <YF%2BQnavNhQIjUYzj@fc.opsec.eu> <CAK7dMtDnD3yeJ_sNa8Wg8ppHUBTzEN=VqGvPh7iN1Ps=Pshg1g@mail.gmail.com>
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Hi! > That class of processor has fairly limited memory bandwidth. An E5 v3 or > greater should get you what you want, although finding a system that makes > good use of available PCIe lanes with a single socket configuration can > sometimes be maddening. AMD may have a variety of nice parts for this > application, although I don’t have any personal experience with routing on > such hardware. Thanks -- I searched for a pair of boxes in my infra with those specs, found them: Intel(R) Xeon(R) CPU E5-1620 v3 @ 3.50GHz 82599ES 10-Gigabit SFI/SFP+ Network Connection and Intel(R) Xeon(R) CPU E5-1620 v4 @ 3.50GHz 82599ES 10-Gigabit SFI/SFP+ Network Connection and tested. Roughly the same performance, if we use only one connection. iperf3 -c <destip> The boxes were able to reach 10gbit, if we run 3 threads in parallel: iperf3 -c -P 3 <destip> So I have some area where I can investigate further. -- pi@FreeBSD.org +49 171 3101372 Now what ?
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