Everyone must be cooking their turkeys because my mains voltage is only
217V and my solar PV inverter keeps dropping off line, not that there's
much daylight available anyway. Happy Crimble!

--
TOJ.

The Other John <nomail@here.org> wrote:

> Everyone must be cooking their turkeys because my mains voltage is only
> 217V and my solar PV inverter keeps dropping off line, not that there's
> much daylight available anyway.

Demand is only just over 30GW, of which CCGT is supplying 2GW. Frequency is
49.873Hz.

> Happy Crimble!

WHS!

--
Spike

Spike <aero.spike@mail.com> wrote:
> The Other John <nomail@here.org> wrote:
>
>> Everyone must be cooking their turkeys because my mains voltage is only
>> 217V and my solar PV inverter keeps dropping off line, not that there's
>> much daylight available anyway.
>
> Demand is only just over 30GW, of which CCGT is supplying 2GW. Frequency is
> 49.873Hz.
>
>> Happy Crimble!
>
> WHS!

PS: Mains voltage here is 238.0, fluctuating by +-0.2V.

--
Spike

The Other John wrote:

> Everyone must be cooking their turkeys because my mains voltage is only
> 217V

Must be those megawatts of flashing LEDs

Mine (which reaches 252V most days) is around 241V at the moment

> Happy Crimble!

Likewise ...

On Monday 25 December 2023 at 11:43:51 UTC, The Other John wrote:
> Everyone must be cooking their turkeys because my mains voltage is only
> 217V and my solar PV inverter keeps dropping off line, not that there's
> much daylight available anyway. Happy Crimble!

Haven't even got my pizza out of the freezer yet!

Internet seems okay though as I am getting 2 bars of 4g on my mobile hotspot.

Treated myself and put the heating on this morning too.

Owain

On Mon, 25 Dec 2023 11:43:46 +0000, The Other John wrote:

> Everyone must be cooking their turkeys because my mains voltage is only
> 217V and my solar PV inverter keeps dropping off line, not that there's
> much daylight available anyway. Happy Crimble!

241 to 243 here!

--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

On Mon, 25 Dec 2023 12:31:14 +0000, Bob Eager wrote:

> 241 to 243 here!

Now the cooking's over it's back up to 230V, often 234V in daytime.

--
TOJ.

On Mon, 25 Dec 2023 17:33:53 +0000, The Other John wrote:

> On Mon, 25 Dec 2023 12:31:14 +0000, Bob Eager wrote:
>
>> 241 to 243 here!
>
> Now the cooking's over it's back up to 230V, often 234V in daytime.

Complaints on local groups round here are mainly about the slowness of
TalkTalk at the moment. Don't think they have the backhaul to handle these
100GB game 'updates' for games received for Christmas.

--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

On Tuesday 26 December 2023 at 11:42:58 UTC, Bob Eager wrote:
> Complaints on local groups round here are mainly about the slowness of
> TalkTalk at the moment. Don't think they have the backhaul to handle these
> 100GB game 'updates' for games received for Christmas.

They should go to a friend's house and ask them to put it on a floppy.

Owain

On 28/12/2023 17:33, Owain Lastname wrote:
> On Tuesday 26 December 2023 at 11:42:58 UTC, Bob Eager wrote:
>> Complaints on local groups round here are mainly about the slowness of
>> TalkTalk at the moment. Don't think they have the backhaul to handle these
>> 100GB game 'updates' for games received for Christmas.
>
> They should go to a friend's house and ask them to put it on a floppy.
>
thumb drive is the correct parlance

you wont get 100GB on a floopy

> Owain
>
>

--
"First, find out who are the people you can not criticise. They are your
oppressors."
- George Orwell

On 12/28/2023 12:45 PM, The Natural Philosopher wrote:
> On 28/12/2023 17:33, Owain Lastname wrote:
>> On Tuesday 26 December 2023 at 11:42:58 UTC, Bob Eager wrote:
>>> Complaints on local groups round here are mainly about the slowness of
>>> TalkTalk at the moment. Don't think they have the backhaul to handle these
>>> 100GB game 'updates' for games received for Christmas.
>>
>> They should go to a friend's house and ask them to put it on a floppy.
>>
> thumb drive is the correct parlance
>
> you wont get 100GB on  a floopy
>
>> Owain

Google has a 20Gbit/sec fiber trial they're working on.

https://readwrite.com/google-pushes-boundaries-with-20-gigabit-fiber-trial/

That would take quite the household router.

I suppose you could keep all the bandwidth to yourself
(connect the cable to just one PC).

Paul

On 29/12/2023 10:38, Paul wrote:
> On 12/28/2023 12:45 PM, The Natural Philosopher wrote:
>> On 28/12/2023 17:33, Owain Lastname wrote:
>>> On Tuesday 26 December 2023 at 11:42:58 UTC, Bob Eager wrote:
>>>> Complaints on local groups round here are mainly about the slowness of
>>>> TalkTalk at the moment. Don't think they have the backhaul to handle these
>>>> 100GB game 'updates' for games received for Christmas.
>>>
>>> They should go to a friend's house and ask them to put it on a floppy.
>>>
>> thumb drive is the correct parlance
>>
>> you wont get 100GB on  a floopy
>>
>>> Owain
>
> Google has a 20Gbit/sec fiber trial they're working on.
>
> https://readwrite.com/google-pushes-boundaries-with-20-gigabit-fiber-trial/
>
> That would take quite the household router.
>
> I suppose you could keep all the bandwidth to yourself
> (connect the cable to just one PC).
>
Probably more than one PC could handle as well

Ok at 64 bit wide data bus, that's only 320MHz access to RAM..so maybe.

> Paul
>
>

--
The biggest threat to humanity comes from socialism, which has utterly
diverted our attention away from what really matters to our existential
survival, to indulging in navel gazing and faux moral investigations
into what the world ought to be, whilst we fail utterly to deal with
what it actually is.

The Natural Philosopher <tnp@invalid.invalid> wrote:
> On 29/12/2023 10:38, Paul wrote:
> > Google has a 20Gbit/sec fiber trial they're working on.
> >
> > https://readwrite.com/google-pushes-boundaries-with-20-gigabit-fiber-trial/
> >
> > That would take quite the household router.
> >
> > I suppose you could keep all the bandwidth to yourself
> > (connect the cable to just one PC).
> >
> Probably more than one PC could handle as well

I have dual-40Gbit network cards in two of my PCs. They were £40 each on
ebay. I've only patched one port with a back to back cable to the other PC,
but I do get ~37Gbps.

> Ok at 64 bit wide data bus, that's only 320MHz access to RAM..so maybe.

You can buy 200Gbit NICs these days, which push the limits of PCIe a bit
more. Still relatively affordable used:
https://www.ebay.com/itm/176061504502

The usual bottleneck though is the efficiency of the software processing the
traffic - need tweaking to ensure you make best use of CPU to be able to
handle the packets, and probably a decent server CPU to have enough
horsepower.

Theo

Theo wrote:

> You can buy 200Gbit NICs these days, which push the limits of PCIe a bit
> more. Still relatively affordable used:
> https://www.ebay.com/itm/176061504502

800Gbe is in development

> The usual bottleneck though is the efficiency of the software processing the
> traffic - need tweaking to ensure you make best use of CPU to be able to
> handle the packets, and probably a decent server CPU to have enough
> horsepower.

Heading towards servers with DPUs, which are to NICs what GPUs are to
dumb graphics cards, packet offloading on steroids ...

On 12/29/2023 6:33 AM, The Natural Philosopher wrote:
> On 29/12/2023 10:38, Paul wrote:
>> On 12/28/2023 12:45 PM, The Natural Philosopher wrote:
>>> On 28/12/2023 17:33, Owain Lastname wrote:
>>>> On Tuesday 26 December 2023 at 11:42:58 UTC, Bob Eager wrote:
>>>>> Complaints on local groups round here are mainly about the slowness of
>>>>> TalkTalk at the moment. Don't think they have the backhaul to handle these
>>>>> 100GB game 'updates' for games received for Christmas.
>>>>
>>>> They should go to a friend's house and ask them to put it on a floppy.
>>>>
>>> thumb drive is the correct parlance
>>>
>>> you wont get 100GB on  a floopy
>>>
>>>> Owain
>>
>> Google has a 20Gbit/sec fiber trial they're working on.
>>
>>     https://readwrite.com/google-pushes-boundaries-with-20-gigabit-fiber-trial/
>>
>> That would take quite the household router.
>>
>> I suppose you could keep all the bandwidth to yourself
>> (connect the cable to just one PC).
>>
> Probably more than one PC could handle as well
>
> Ok at 64 bit wide data bus, that's only 320MHz access to RAM..so maybe.

I think paying for a 100GbE card, just to get that
signal into the PC, would take some of the fun out of it.

It's also not exactly clear, what speed you can get
from a network stack with this stuff. I tried searching.
I even tried asking CoPilot. I got mush for answers.
CoPilot referenced this, and there's no evidence this
has anything to do with whizzy NICs.

https://www.techrepublic.com/article/how-to-improve-network-speed-in-windows-10-by-increasing-irpstacksize/

To some extent, high packet rates on NICs is going to rely
on interrupt consolidation. And I don't really know how far
you can stretch that concept. What practical limits are there
to buffer rings ? Buffer rings today, are a lot larger than
they used to be.

Windows 10 and Windows 11 still have interrupt rate limiters.
Just as older Windows did. That's one of the incentives to
have interrupt consolidation on a NIC.

On Win2K, I measured 40MB/sec as the best you could manage
on a GbE. That's how long ago, since I've tested this stuff.
WinXP was able to run GbE at 112MB/sec. The rate today,
has some dependencies on whether encryption on the link is
being used.

But I haven't seen any kind of thoughtful testing lately
for stacks. People have got RealTek 2.5Gbit/sec hardware
now, on more than one of their PCs, and there's just no test
results out there. An AQC107 should be giving us hobbyist
testing of 10GbE capabilities on modern OSes. Nothing.

It's like nobody cares whether their stuff is tuned or not.

Paul

In message <kv86taFca4nU3@mid.individual.net>, Andy Burns
<usenet@andyburns.uk> writes
>Theo wrote:
>
>> You can buy 200Gbit NICs these days, which push the limits of PCIe a bit
>> more. Still relatively affordable used:
>> https://www.ebay.com/itm/176061504502
>
>800Gbe is in development
>
>> The usual bottleneck though is the efficiency of the software processing the
>> traffic - need tweaking to ensure you make best use of CPU to be able to
>> handle the packets, and probably a decent server CPU to have enough
>> horsepower.
>
>Heading towards servers with DPUs, which are to NICs what GPUs are to
>dumb graphics cards, packet offloading on steroids ...

Something interesting over Christmas. S.I.L. brought an early i pad to
try on our wi-fi. Apparently worked fine here but not in London on a
fibre connection.
>

--
Tim Lamb

On 29/12/2023 17:20, Tim Lamb wrote:
> In message <kv86taFca4nU3@mid.individual.net>, Andy Burns
> <usenet@andyburns.uk> writes
>> Theo wrote:
>>
>>> You can buy 200Gbit NICs these days, which push the limits of PCIe a bit
>>> more.  Still relatively affordable used:
>>> https://www.ebay.com/itm/176061504502
>>
>> 800Gbe is in development
>>
>>> The usual bottleneck though is the efficiency of the software
>>> processing the
>>> traffic - need tweaking to ensure you make best use of CPU to be able to
>>> handle the packets, and probably a decent server CPU to have enough
>>> horsepower.
>>
>> Heading towards servers with DPUs, which are to NICs what GPUs are to
>> dumb graphics cards, packet offloading on steroids ...
>
> Something interesting over Christmas. S.I.L. brought an early i pad to
> try on our wi-fi. Apparently worked fine here but not in London on a
> fibre connection.
>>
>
I pads don't have fibre connections

--
“There are two ways to be fooled. One is to believe what isn’t true; the
other is to refuse to believe what is true.”

—Soren Kierkegaard

In message <ummvlh$tav6$7@dont-email.me>, The Natural Philosopher
<tnp@invalid.invalid> writes
>On 29/12/2023 17:20, Tim Lamb wrote:
>> In message <kv86taFca4nU3@mid.individual.net>, Andy Burns
>><usenet@andyburns.uk> writes
>>> Theo wrote:
>>>
>>>> You can buy 200Gbit NICs these days, which push the limits of PCIe a bit
>>>> more.  Still relatively affordable used:
>>>> https://www.ebay.com/itm/176061504502
>>>
>>> 800Gbe is in development
>>>
>>>> The usual bottleneck though is the efficiency of the software
>>>>processing the
>>>> traffic - need tweaking to ensure you make best use of CPU to be able to
>>>> handle the packets, and probably a decent server CPU to have enough
>>>> horsepower.
>>>
>>> Heading towards servers with DPUs, which are to NICs what GPUs are
>>>to dumb graphics cards, packet offloading on steroids ...
>> Something interesting over Christmas. S.I.L. brought an early i pad
>>to try on our wi-fi. Apparently worked fine here but not in London on
>>a fibre connection.
>>>
>>
>I pads don't have fibre connections

wi-fi fed from fibre.

--
Tim Lamb

On 29/12/2023 17:39, Tim Lamb wrote:
> In message <ummvlh$tav6$7@dont-email.me>, The Natural Philosopher
> <tnp@invalid.invalid> writes
>> On 29/12/2023 17:20, Tim Lamb wrote:
>>> In message <kv86taFca4nU3@mid.individual.net>, Andy Burns
>>> <usenet@andyburns.uk> writes
>>>> Theo wrote:
>>>>
>>>>> You can buy 200Gbit NICs these days, which push the limits of PCIe
>>>>> a bit
>>>>> more.  Still relatively affordable used:
>>>>> https://www.ebay.com/itm/176061504502
>>>>
>>>> 800Gbe is in development
>>>>
>>>>> The usual bottleneck though is the efficiency of the software
>>>>> processing the
>>>>> traffic - need tweaking to ensure you make best use of CPU to be
>>>>> able to
>>>>> handle the packets, and probably a decent server CPU to have enough
>>>>> horsepower.
>>>>
>>>> Heading towards servers with DPUs, which are to NICs what GPUs are
>>>> to  dumb graphics cards, packet offloading on steroids ...
>>>  Something interesting over Christmas. S.I.L. brought an early i pad
>>> to  try on our wi-fi. Apparently worked fine here but not in London
>>> on a  fibre connection.
>>>>
>>>
>> I pads don't have fibre connections
>
> wi-fi fed from fibre.
>
What has that got do do with the fibre?

--
"Nature does not give up the winter because people dislike the cold."

― Confucius

The Natural Philosopher wrote:

> Tim Lamb wrote:
>
>> S.I.L. brought an early i pad to
>> try on our wi-fi. Apparently worked fine here but not in London on a
>> fibre connection.
>
> I pads don't have fibre connections

But a few years ago they could be fussy about certain DHCP servers.

The Natural Philosopher <tnp@invalid.invalid> wrote:
> On 28/12/2023 17:33, Owain Lastname wrote:
>> On Tuesday 26 December 2023 at 11:42:58 UTC, Bob Eager wrote:
>>> Complaints on local groups round here are mainly about the slowness of
>>> TalkTalk at the moment. Don't think they have the backhaul to handle these
>>> 100GB game 'updates' for games received for Christmas.
>>
>> They should go to a friend's house and ask them to put it on a floppy.
>>
> thumb drive is the correct parlance
>
> you wont get 100GB on a floopy
>

Biggest “woosh!” Of 2023 maybe?

Tim

--
Please don't feed the trolls

On 29/12/2023 17:59, Andy Burns wrote:
> The Natural Philosopher wrote:
>
>> Tim Lamb wrote:
>>
>>> S.I.L. brought an early i pad to try on our wi-fi. Apparently worked
>>> fine here but not in London on a fibre connection.
>>
>> I pads don't have fibre connections
>
> But a few years ago they could be fussy about certain DHCP servers.
>
>
No.
Its a completely different part of the router

--
“Those who can make you believe absurdities, can make you commit
atrocities.”

― Voltaire, Questions sur les Miracles à M. Claparede, Professeur de
Théologie à Genève, par un Proposant: Ou Extrait de Diverses Lettres de
M. de Voltaire

In message <umn13v$tpnh$2@dont-email.me>, The Natural Philosopher
<tnp@invalid.invalid> writes
>On 29/12/2023 17:39, Tim Lamb wrote:
>> In message <ummvlh$tav6$7@dont-email.me>, The Natural Philosopher
>><tnp@invalid.invalid> writes
>>> On 29/12/2023 17:20, Tim Lamb wrote:
>>>> In message <kv86taFca4nU3@mid.individual.net>, Andy Burns
>>>><usenet@andyburns.uk> writes
>>>>> Theo wrote:
>>>>>
>>>>>> You can buy 200Gbit NICs these days, which push the limits of
>>>>>>PCIe a bit
>>>>>> more.  Still relatively affordable used:
>>>>>> https://www.ebay.com/itm/176061504502
>>>>>
>>>>> 800Gbe is in development
>>>>>
>>>>>> The usual bottleneck though is the efficiency of the software
>>>>>>processing the
>>>>>> traffic - need tweaking to ensure you make best use of CPU to be
>>>>>>able to
>>>>>> handle the packets, and probably a decent server CPU to have enough
>>>>>> horsepower.
>>>>>
>>>>> Heading towards servers with DPUs, which are to NICs what GPUs are
>>>>>to  dumb graphics cards, packet offloading on steroids ...
>>>>  Something interesting over Christmas. S.I.L. brought an early i
>>>>pad to  try on our wi-fi. Apparently worked fine here but not in
>>>>London on a  fibre connection.
>>>>>
>>>>
>>> I pads don't have fibre connections
>> wi-fi fed from fibre.
>>
>What has that got do do with the fibre?

Something to do with the router source speed?

Different router/wi-fi obviously but I assume there is a data rate
issue. Radio was not part of my engineering studies.
>

--
Tim Lamb

The Natural Philosopher wrote:
> On 29/12/2023 17:59, Andy Burns wrote:
>> The Natural Philosopher wrote:
>>
>>> Tim Lamb wrote:
>>>
>>>> S.I.L. brought an early i pad to try on our wi-fi. Apparently worked
>>>> fine here but not in London on a fibre connection.
>>>
>>> I pads don't have fibre connections
>>
>> But a few years ago they could be fussy about certain DHCP servers.
>>
>>
> No.
> Its a completely different part of the router

I'm not suggesting the ipads don't like the router because the router
has fibre, just that for unrelated reasons, old ipads don't like some
router's dhcp.

Andy Burns <usenet@andyburns.uk> wrote:
> The Natural Philosopher wrote:
>> On 29/12/2023 17:59, Andy Burns wrote:
>>> The Natural Philosopher wrote:
>>>
>>>> Tim Lamb wrote:
>>>>
>>>>> S.I.L. brought an early i pad to try on our wi-fi. Apparently worked
>>>>> fine here but not in London on a fibre connection.
>>>>
>>>> I pads don't have fibre connections
>>>
>>> But a few years ago they could be fussy about certain DHCP servers.
>>>
>>>
>> No.
>> Its a completely different part of the router
>
> I'm not suggesting the ipads don't like the router because the router
> has fibre, just that for unrelated reasons, old ipads don't like some
> router's dhcp.
>
>

Indeed. I used to get very pissed off when my older iPad refused to connect
to some Wi-Fi networks whilst my wife’s newer one would.

Tim

--
Please don't feed the trolls