I'm very happy to see interest in DPDK and power consumption.
But IMHO, the questions do not cover the actual reality of DPDK.
That característic of "100% CPU" depends on several aspects, like:
- How old are the hardware on DPDK.
- What type of DPDK Instructions are made(Very Dynamic as Stateful
>
> The way I saw, the questions induce the public to conclude that DPDK
> ALWAYS has 100% CPU usage, which is not true.
I don't concur.
Every research paper I've read indicates that, regardless of whether it has
packets to process or not, DPDK PMDs (poll-mode drivers) prevent the CPU
from falli
Dnia Mon, Feb 22, 2021 at 08:33:35AM -0300, Douglas Fischer napisał(a):
> But IMHO, the questions do not cover the actual reality of DPDK.
> That característic of "100% CPU" depends on several aspects, like:
> - How old are the hardware on DPDK.
> - What type of DPDK Instructions are made(Very D
Here are a few references.
Strictly speaking, DPDK and SR-IOV are orthogonal. DPDK is intended to
facilitate cloud-native operation through hardware independence. SR-IOV
presumes SR-IOV-compliant hardware.
[1] Z. Xu, F. Liu, T. Wang, and H. Xu, “Demystifying the energy efficiency
of Network Functi
>
> It consumes 100% only if you busy poll (which is the default approach).
>
Precisely.
It is, after all, Intel's response to the problem of general-purpose
scheduling of its processors - which prevents the processor from being
viable under high networking loads.
Cheers,
Etienne
On Mon, Feb 22
On Thursday, 18 February, 2021 22:37, "Warren Kumari" said:
> 4: Not too long after I started doing networking (and for the same small
> ISP in Yonkers), I'm flying off to install a new customer. I (of course)
> think that I'm hot stuff because I'm going to do the install, configure the
> router,
Dnia Mon, Feb 22, 2021 at 01:01:45PM +0100, Etienne-Victor Depasquale
napisał(a):
> It is, after all, Intel's response to the problem of general-purpose
> scheduling of its processors - which prevents the processor from being
> viable under high networking loads.
It totally makes sense to busy p
Well...
During my younger days, that button was used a few time by the
operator of a VM/370 to regain control from someone with a "curious
mind" *cought* *cought*...
-
Alain Hebertaheb...@pubnix.net
PubNIX Inc.
50 boul. St-Charles
P.O. Box 26770
I believe that almost everyone in here knows that LOAs for Cross Connects
in Datacenters and Telecom Rooms can be a pain...
I don't know if I'm suggesting something that already exists.
Or even if I'm suggesting something that could be unpopular for some reason.
But every time I need to deal with
While I don't doubt the accuracy of Lee's presentation at the time, at least
two base factors have changed since then:
- Greater deployment of IPv6 content (necessitating less CGN capacity per user)
- Increased price of Legacy IP space on the secondary market (changing the
formula) -- strictly s
On Mon, Feb 22, 2021 at 9:19 AM Douglas Fischer
wrote:
>
> I believe that almost everyone in here knows that LOAs for Cross Connects in
> Datacenters and Telecom Rooms can be a pain...
>
> I don't know if I'm suggesting something that already exists.
> Or even if I'm suggesting something that cou
On 2/22/21 9:14 AM, Alain Hebert wrote:
*[External Email]*
Well...
During my younger days, that button was used a few time by the
operator of a VM/370 to regain control from someone with a "curious
mind" *cought* *cought*...
Two horror stories I remember from long ago when I wa
I forgot to point out that on Friday 26th, I'll share the results collected
through a link or a series of screenshots.
Cheers,
Etienne
On Mon, Feb 22, 2021 at 2:15 PM Pawel Malachowski <
pawmal-na...@freebsd.lublin.pl> wrote:
> Dnia Mon, Feb 22, 2021 at 01:01:45PM +0100, Etienne-Victor Depasqua
Well... I must confess that I had some difficulty on the first
understanding of what is proposed.
But after the 4 reads, I saw that this "spaghetti" thing is more
powerful than I could imagine!
Please correct me if I'm no right:
But it looks like a "crypto sign and publishes" anything related to
On Tue, Feb 16, 2021 at 12:23:22PM +, Bret Clark wrote:
> Texas doesn't generally experience this type of extreme cold.
That was then; this is now.
As scientist Jeff Masters put it most of a decade ago:
The atmosphere I grew up with no longer exists. My new motto
with regard
On Wed, Feb 17, 2021 at 10:34:35AM -0800, Sabri Berisha wrote:
> With apologies to those on the list who still use mutt/pine etc.
1. "still"? Competent professionals with security awareness use text-only
email clients as a matter of basic self-defense. I trust it's obvious
why those of us who a
Patrick W. Gilmore wrote:
>
> Me: Did you order that EPO cover?
> Her: Nope.
There are apparently two kinds of EPO cover:
- the kind that stops you from pressing the button by mistake;
- and the kind that doesn't, and instead locks the button down to make
sure it isn't un-pressed un
Exactly. The weather is not a stationary time series. The moments of the
probability distribution are not time invariant.
From: NANOG on behalf
of Rich Kulawiec
Sent: Monday, February 22, 2021 6:18 PM
To: nanog@nanog.org
Subject: Re: Texas internet connectivit
On Mon, Feb 22, 2021 at 7:09 AM t...@pelican.org wrote:
> On Thursday, 18 February, 2021 22:37, "Warren Kumari"
> said:
>
> > 4: Not too long after I started doing networking (and for the same small
> > ISP in Yonkers), I'm flying off to install a new customer. I (of course)
> > think that I'm h
Long ago, in a galaxy far away I worked for a gov't contractor on site
at a gov't site...
We had our own cute little datacenter, and our 4 building complex had
a central power distribution setup from utility -> buildings.
It was really quite nice :) (the job, the buildings, the power and
cute litt
I’ve always used wording such as “I’m contacting you on behalf of so-and-so.”
If they ask further I usually tell them I’m a consultant.
On Feb 20, 2021, at 11:29 AM, Mike Hammett
mailto:na...@ics-il.net>> wrote:
Leave aside any conversation about whether the business has the ability (or
appr
On Thu, Feb 18, 2021 at 07:34:39PM -0500, Patrick W. Gilmore wrote:
> And to put it on topic, cover your EPOs
I worked somewhere with an uncovered EPO, which was okay until we had a
telco tech in who was used to a different data center where a similar
looking button controlled the door access, so
Sorry Global Warmists, But Extreme Weather Events Are Becoming Less Extreme
Just about every type of extreme weather event is becoming less frequent and
less severe in recent years as our planet continues its modest warming in the
wake of the Little Ice Age. While global warming activists attempt
On Mon, 22 Feb 2021 at 19:57, Mel Beckman wrote:
> Sorry Global Warmists, But Extreme Weather Events Are Becoming Less Extreme
> Just about every type of extreme weather event is becoming less frequent and
> less severe in recent years as our planet continues its modest warming in the
> wake of
> On Feb 22, 2021, at 9:56 AM, Mel Beckman wrote:
>
> Sorry Global Warmists,
Stopped taking you seriously or reading further right there. Well, that and
linking to Forbes for something related to science.
Best.
> But it looks like a "crypto sign and publishes" anything related to an
> organization.
that is the problem with this discussion. it does not. it allows one
to show ownership of an AS or prefix. it does not show ownership or
authority over an organization. keep your trust model straight.
ran
Mel, just please remove yourself from this conversation if you don't accept the
basic premise. Go and find those missing votes in Georgia.
Best,
-R.
From: NANOG on behalf
of Brandon Svec via NANOG
Sent: Monday, February 22, 2021 7:16 PM
To: nanog@nanog.org
S
On Mon, Feb 22, 2021 at 05:48:06PM +, Mel Beckman wrote:
> Sorry Global Warmists,
Right. Sure. Also, the earth is 6,000 years old (and flat), the moon
landings were faked, creationism is real, dinosaurs and humans co-existed,
vaccines cause autism, Elvis is alive, and...how does that line g
> are you asking about something like this:
> https://datatracker.ietf.org/doc/draft-spaghetti-sidrops-rpki-rsc/
>
> Which COULD be used to, as an AS holder:
> "sign something to be sent between you and the colo and your intended peer"
>
> that you could sign (with your rpki stuffs) and your
On Mon, 22 Feb 2021 at 20:28, Rich Kulawiec wrote:
> right: artificial sweeteners are safe, WMDs were in Iraq, and Anna Nicole
Hope you meant to write 'unsafe', as the conspiracy theory is that
aspartame is unsafe, the science says it is safe.
https://en.wikipedia.org/wiki/Aspartame_controversy
When I lived in Oklahoma, the mantra of the locals was "if you don't
like the weather, wait five minutes." As a member of a Boy Scout troop
in the northern part of the Sooner State, we were told, repeatedly, to
expect anything from broiling to deep freeze on our campouts.
One such outing was
On Mon, Feb 22, 2021 at 1:39 PM Randy Bush wrote:
>
> > are you asking about something like this:
> > https://datatracker.ietf.org/doc/draft-spaghetti-sidrops-rpki-rsc/
> >
> > Which COULD be used to, as an AS holder:
> > "sign something to be sent between you and the colo and your intended
>
On Mon, Feb 22, 2021 at 12:50 PM Regis M. Donovan
wrote:
> On Thu, Feb 18, 2021 at 07:34:39PM -0500, Patrick W. Gilmore wrote:
> > And to put it on topic, cover your EPOs
>
> I worked somewhere with an uncovered EPO, which was okay until we had a
> telco tech in who was used to a different data c
>> way back, the rirs were very insistant that their use of rpki authority
>> was most emphatically not to be considered an identity service. this
>> permeated the design; e.g., organization names were specifically
>> forbidden in certificate CN, Subject Alternative Name, etc.
>>
>
> yup, I agree
On Mon, Feb 22, 2021 at 2:06 PM Randy Bush wrote:
>
> >> way back, the rirs were very insistant that their use of rpki authority
> >> was most emphatically not to be considered an identity service. this
> >> permeated the design; e.g., organization names were specifically
> >> forbidden in certif
On Fri, 19 Feb 2021, Andy Ringsmuth wrote:
> > I explain using my "talking to a 5 year old" voice that it
> > most certainly is a router. He tells me that lying to airport security
> > is a federal offense, and starts looming at me. I adjust my attitude
> > and start explaining that it's like a
Saku,
I see that not one of your references addresses the facts pointed out by
Forbes. Rather than a shotgun response, can you counter the evidence cited that
disproves the claim that climate events are getting more frequent and severe?
it’s a fair topic for NANOG. The idea that countervailing
On Mon, Feb 22, 2021 at 2:05 PM Warren Kumari wrote:
>
>
> On Mon, Feb 22, 2021 at 12:50 PM Regis M. Donovan
> wrote:
>
>> On Thu, Feb 18, 2021 at 07:34:39PM -0500, Patrick W. Gilmore wrote:
>> > And to put it on topic, cover your EPOs
>>
>> I worked somewhere with an uncovered EPO, which was ok
What offended you? The term “Global Warmist”? It’s an accurate description of
people who hold that climate change is causing more frequent and severe
weather, due to heating of the atmosphere.
And your argument about “Forbes for something related to science” fails on the
classic logical fallac
Rod,
I brought up a single objection to a single claim. You choose to dismiss me
because I “don’t accept the basic premise.” Why don’t you respond to the
specific facts I cited? Why resort to personal attacks?
Name calling is the last resort of the man with no argument.
-mel
On Feb 22, 2021,
Rich,
Calling my opposing argument “trash”, and then falsely linking it to unrelated
theories on vaccines, evolution, moon landings, and dietary supplements, is
intellectually dishonest and professionally rude. Why don’t you respond to the
facts raised in the article? Does your religion not pe
OK, I looked closer. I see it is a self titled opinion piece so there is
that. Next, I see all the links in the article go to questionable sites
(not .edu or scientific organizations, etc.) except one cherry picked NOAA
stat for a single event type for a single year. Last, the writer is the
pre
On Mon, Feb 22, 2021 at 11:37 AM Mel Beckman wrote:
>
>
> Either weather events are getting worse, or they aren’t.
No, nothing is so black and white. Certainly not science.
> I provided solid evidence that they are diminishing.
No, you didn't. You shared an opinion piece written by the pre
What if PeeringDB would be the CA for the Facilities?
Supposedly this solves the CA problem of the "Colo Folks".
Would PeeringDB be interested in that?
Em seg., 22 de fev. de 2021 às 16:04, Christopher Morrow <
morrowc.li...@gmail.com> escreveu:
> On Mon, Feb 22, 2021 at 1:39 PM Randy Bush wro
DANOS lets you specify how many dataplane cores you use versus control
plane cores. So if you put a 16 core host in to handle 2GB of traffic, you
can adjust the dataplane worker cores as needed. Control plane cores don't
stay at 100% utilization.
I use that technique plus DANOS runs on VMware (not
I can argue about this all day on Facebook or Twitter (and sometimes do,
whether trolling or serious depends on the day). Let's reign it back in to
network operations concerns.
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
Midwest-IX
http://www.midwest-ix.com
Brandon,
Actually, no, I don’t have to do science to object to claims made by
scientists. Even when there is a consensus. I can simply cite data, and it is
the duty of the person making the claim to defend their theory.
If you’re going to defend it for them, then you need to cite countering dat
On Mon, Feb 22, 2021 at 2:44 PM Douglas Fischer
wrote:
>
> What if PeeringDB would be the CA for the Facilities?
> Supposedly this solves the CA problem of the "Colo Folks".
>
I think pushing your security identification out (as the notional
equinix) to a third party where you can't revoke/change
You guys build how you want. At 6x7 we are building to prepare for possible
climactic shifts. The origin need not be anthropogenic, but that doesn’t look
good.
“Doing nothing” isn’t really an option, and “doing what republicans want
because they say so and they’re my dad” isn’t a good argument
>> What if PeeringDB would be the CA for the Facilities?
>> Supposedly this solves the CA problem of the "Colo Folks".
>
> I think pushing your security identification out (as the notional
> equinix) to a third party where you can't revoke/change/etc is asking
> for dangerous things to happen.
th
Many years ago I experienced a very similar thing. The DC/Integrator I worked
for outsourced the co-location and operation of mainframe services for several
banks and government organisations. One of these banks had a significant
investment in AS/400's and they decided that it was so much hassle
Beyond RX/TX CPU affinity, in DANOS you can further tune power consumption by
changing the adaptive polling rate. It doesn’t, per the survey, "keep
utilization at 100% regardless of packet activity.” Adaptive polling changes
in DPDK optimize for tradeoffs between power consumption, latency/jit
> On Feb 18, 2021, at 9:04 PM, Jen Linkova wrote:
>
> On Fri, Feb 19, 2021 at 9:40 AM Warren Kumari wrote:
>> 4: Not too long after I started doing networking (and for the same small ISP
>> in Yonkers), I'm flying off to install a new customer. I (of course) think
>> that I'm hot stuff becau
Thanks Jared; that's very interesting.
Earlier today, I had a private exchange of emails regarding the progressive
development of architectures specific to the domain of high-speed networking
functions. Your note reinforces the notion that this “hard” partitioning of
cores is a key part of the
On Feb 22, 2021, at 7:02 AM, t...@pelican.org wrote:
> On Thursday, 18 February, 2021 22:37, "Warren Kumari"
> said:
>
>> 4: Not too long after I started doing networking (and for the same small
>> ISP in Yonkers), I'm flying off to install a new customer. I (of course)
>> think that I'm hot stu
"set system default dataplane cpu-affinity 3-7" is what I have set for my
use case. Technically its 5 cores out of 8 total, but 4 are polling cores
and 1 manages those 4. Then the control plane is 3 plus the leftover cycles
of the 1 manager core.
On Mon, Feb 22, 2021 at 2:04 PM Etienne Depasquale
The LOA type model is one of the ones we showed on slideware when we
presented RTA in IETF, and at the CloudFlare RPKI workshop years ago.
The detached signature model inherent in RTA and RSC goes to "you
define the business logic" It's not proscriptive. I saw nothing
proposed here which I thought
At Boston Univ we discovered the hard way that a security guard's
walkie-talkie could cause a $5,000 (or $10K for the big machine room)
Halon dump.
Took a couple of times before we figured out the connection tho once
someone made it to the hold button before it actually dumped.
Speaking of halo
Really, does anyone here think that it is good form to send email with font
size *SMALL*?
If your MUA does this by default complain to the developers. The default
should be “medium”.
If the font is too big on your screen change the magnification *you* choose to
display to *yourself*,
don’t chan
Let me tell you about my personal favorite.
It’s 2002 and I am working as an engineer for an electronic stock trading
platform (ECN), this platform happened to be the biggest platform for trading
stocks electronically, on some days bigger than NASDAQ itself. This platform
also happened to be ru
> Really, does anyone here think that it is good form to send email with
> font size *SMALL*?
rofl!
randy
---
ra...@psg.com
`gpg --locate-external-keys --auto-key-locate wkd ra...@psg.com`
signatures are back, thanks to dmarc header mangling
> you can sign over something which ways "the person identified by the
> following public key is to be permitted to ..."
you mean the fraudlent attacker who owned that INR seems to have signed
this request for a €1.000.000,49 wire transfer to their iban. a person
is not identified by that signatu
On Mon, Feb 22, 2021 at 8:50 PM Randy Bush wrote:
>
> > you can sign over something which ways "the person identified by the
> > following public key is to be permitted to ..."
>
> you mean the fraudlent attacker who owned that INR seems to have signed
> this request for a €1.000.000,49 wire trans
>>> you can sign over something which ways "the person identified by the
>>> following public key is to be permitted to ..."
>>
>> you mean the fraudlent attacker who owned that INR seems to have signed
>> this request for a €1.000.000,49 wire transfer to their iban. a person
>> is not identified
>
> Beyond RX/TX CPU affinity, in DANOS you can further tune power consumption
> by changing the adaptive polling rate. It doesn’t, per the survey, "keep
> utilization at 100% regardless of packet activity.”
>
Robert, you seem to be conflating DPDK
with DANOS' power control algorithms that modulat
Sorry, last line should have been:
"intended to get an impression of how widespread ***knowledge of*** DPDK's
core operating inefficiency is",
not:
"intended to get an impression of how widespread DPDK's core operating
inefficiency is"
On Tue, Feb 23, 2021 at 8:22 AM Etienne-Victor Depasquale
wro
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