Hi Paul,
On 02/15/2016 08:15 PM, Paul Emmerich wrote:
> The bulk_alloc patch is great and helps. I'd love to see such a function
> in DPDK.
>
A patch has been submitted by Huawei. I guess it will be integrated
soon.
See http://dpdk.org/dev/patchwork/patch/10122/
Regards,
Olivier
Hi,
here's a kind of late follow-up. I've only recently found the need
(mostly for the better support of XL710 NICs (which I still dislike but
people are using them...)) to seriously address DPDK 2.x support in MoonGen.
On 13.05.15 11:03, Ananyev, Konstantin wrote:
> Before start to discuss
Hi Paul,
> -Original Message-
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Paul Emmerich
> Sent: Tuesday, May 12, 2015 12:19 AM
> To: dev at dpdk.org
> Subject: Re: [dpdk-dev] TX performance regression caused by the mbuf cachline
> split
>
> Found
On 12/05/15 02:28, Marc Sune wrote:
>
>
> On 12/05/15 01:18, Paul Emmerich wrote:
>> Found a really simple solution that almost restores the original
>> performance: just add a prefetch on alloc. For some reason, I assumed
>> that this was already done since the troublesome commit I
>>
On 12/05/15 01:18, Paul Emmerich wrote:
> Found a really simple solution that almost restores the original
> performance: just add a prefetch on alloc. For some reason, I assumed
> that this was already done since the troublesome commit I investigated
> mentioned something about
Found a really simple solution that almost restores the original
performance: just add a prefetch on alloc. For some reason, I assumed
that this was already done since the troublesome commit I investigated
mentioned something about prefetching... I guess the commit referred to
the hardware
Paul Emmerich:
> I naively tried to move the pool pointer into the first cache line in
> the v2.0.0 tag and the performance actually decreased, I'm not yet sure
> why this happens. There are probably assumptions about the cacheline
> locations and prefetching in the code that would need to be
Hi Luke,
thanks for your suggestion, I actually looked at how your packet
generator in SnabbSwitch works before and it's quite clever. But
unfortunately that's not what I'm looking for.
I'm looking for a generic solution that works with whatever NIC is
supported by DPDK and I don't want to
Hi Paul,
On 11 May 2015 at 02:14, Paul Emmerich wrote:
> Another possible solution would be a more dynamic approach to mbufs:
Let me suggest a slightly more extreme idea for your consideration. This
method can easily do > 100 Mpps with one very lightly loaded core. I don't
know if it works
Hi,
this is a follow-up to my post from 3 weeks ago [1]. I'm starting a new
thread here since I now got a completely new test setup for improved
reproducibility.
Background for anyone that didn't catch my last post:
I'm investigating a performance regression in my packet generator [2]
that
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