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Date:      Sun, 25 Aug 2013 07:42:42 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Andre Oppermann <andre@freebsd.org>
Cc:        FreeBSD Net <freebsd-net@freebsd.org>, "Alexander V. Chernikov" <melifaro@ipfw.ru>
Subject:   Re: route/arp lifetime (Re: it's the output, not ack coalescing (Re: TSO and FreeBSD vs Linux))
Message-ID:  <CAJ-VmokMsSWTaKHc1EYdnZ151eH3410d-VdVduuSfn1%2B_zb2%2Bw@mail.gmail.com>
In-Reply-To: <5218E8B6.5090407@freebsd.org>
References:  <520A6D07.5080106@freebsd.org> <520B74DD.1060102@ipfw.ru> <20130814124024.GA64548@onelab2.iet.unipi.it> <201308141740.28779.zec@fer.hr> <20130814154853.GA66341@onelab2.iet.unipi.it> <521204A9.7080607@ipfw.ru> <52152837.9010101@freebsd.org> <5218ABB4.5070601@ipfw.ru> <CAJ-Vmon9qhnn_xJkiKZnLWEi-YAvg=FuL8FoSdToWXgy-VJ59Q@mail.gmail.com> <5218E8B6.5090407@freebsd.org>

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On 24 August 2013 10:09, Andre Oppermann <andre@freebsd.org> wrote:

> On 24.08.2013 19:04, Adrian Chadd wrote:
>
>> I'm very close to starting an mbuf batching thing to use in a few places
>> like receive, transmit and
>> transmit completion -> free path. I'd be interested in your
>> review/feedback and testing as it sounds
>> like something you can easily stress test there. :)
>>
>
> I'd strongly recommend fixing a number of other places and collect
> lower hanging fruit before starting with mbuf batching.


I'm open to suggestions.

Scott killed our high hanging fruit (VM / buffer page lifecycle) and what's
left is not very low. If you have any recommendations, I'd love to hear
them.



-adrian



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