route/arp lifetime (Re: it's the output, not ack coalescing (Re: TSO and FreeBSD vs Linux))

[Adrian Chadd]

On 24 August 2013 10:09, Andre Oppermann <andre at 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