From: Stephen Hemminger <stephen@networkplumber.org>
To: Aaron Wood <woody77@gmail.com>
Cc: Dave Taht <dave.taht@gmail.com>,
cake@lists.bufferbloat.net, bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Cake] [Bloat] are anyone playing with dpdk and vpp?
Date: Wed, 27 Apr 2016 12:32:14 -0700 [thread overview]
Message-ID: <CAOaVG17QaDgfehKjeWdVtB3chj_4PWwmog4j3b3gmL_zH7R6rA@mail.gmail.com> (raw)
In-Reply-To: <CALQXh-O-jq=Gug2sjbaOZ20fYtbwYSBwo1a+Eo7bf2BYhZc6Tg@mail.gmail.com>
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DPDK gets impressive performance on large systems (like 14M packets/sec per
core), but not convinced on smaller systems.
Performance depends on having good CPU cache. I get poor performance on
Atom etc.
Also driver support is limited (mostly 10G and above)
On Wed, Apr 27, 2016 at 12:28 PM, Aaron Wood <woody77@gmail.com> wrote:
> I'm looking at DPDK for a project, but I think I can make substantial
> gains with just AF_PACKET + FANOUT and SO_REUSEPORT. It's not clear to my
> yet how much DPDK is going to gain over those (and those can go a long way
> on higher-powered platforms).
>
> On lower-end systems, I'm more suspicious of the memory bus (and the cache
> in particular), than I am the raw CPU power.
>
> -Aaron
>
> On Wed, Apr 27, 2016 at 11:57 AM, Dave Taht <dave.taht@gmail.com> wrote:
>
>> https://fd.io/technology seems to have come a long way.
>>
>> --
>> Dave Täht
>> Let's go make home routers and wifi faster! With better software!
>> http://blog.cerowrt.org
>> _______________________________________________
>> Bloat mailing list
>> Bloat@lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/bloat
>>
>
>
> _______________________________________________
> Cake mailing list
> Cake@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cake
>
>
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next prev parent reply other threads:[~2016-04-27 19:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-27 18:57 [Cake] " Dave Taht
2016-04-27 19:28 ` [Cake] [Bloat] " Aaron Wood
2016-04-27 19:32 ` Stephen Hemminger [this message]
2016-04-27 19:37 ` Mikael Abrahamsson
2016-04-27 19:45 ` Dave Taht
2016-04-27 19:50 ` Dave Taht
2016-04-27 22:40 ` Aaron Wood
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