That was scary

On 13/4/20 3:44 am, jlarkin@highlandsniptechnology.com wrote:
On Sun, 12 Apr 2020 18:41:01 +0200, David Brown
david.brown@hesbynett.no> wrote:
Note also that Korea have found people who have had the virus,
recovered, and are now testing positive /again/.

But do they get sick again? Or infectious? PCR is very sensitive and
they may have a few viruses, or bits of viruses, still in their
bodies.
Click to expand...

Viruses or "bits of viruses" would break down. They need to be replicating.

It's entirely possible that the virus is replicating in cells which are
far enough out on the periphery that the immune system cannot eradicate
them. So there is active infection that is still localised and not
causing symptoms - but could still infect others.

Experience with other diseases is that even these peripheral infections
die out over time. Not much time had elapsed in the Korean examples.

"Burn out" requires
either very tight containment (and we are way past that possibility, on
a world-wide basis), or massive immunity. And it looks like the
immunity is rather limited.

Many countries have peaked and declined, with a small fraction of the
population known to have been infected.
Click to expand...

But those countries have not yet released lock-down and opened to
international travel. As soon as they do, it will be off like a rocket
again.

CH
 
On 13/4/20 4:07 am, jlarkin@highlandsniptechnology.com wrote:
On a dual-core 600 MHz ARM running Linux, if a high priority
application program runs a tight loop, it will be suspended
occasionally by other tasks and by the OS and drivers, like ethernet.
What is the time profile of the suspensions? How often might that
tight loop be suspended, and for how long?
Click to expand...
I haven't read the thread, but JLs comment reminds me of a study I did
around 2003. I wrote a real-time profiler called "tprof" for Linux&gcc
that used the Pentium TSC, a 64-bit clock-rate real-time counter
register. At 2GHz, the TSC register has a granularity of 0.5ns.

The profiler recorded the entry time to every profiled function and (by
hooking the return using tail-patching) could subtract that time from
the function's exit time. It also recorded the total elapsed time spent
in calls from that function into other profiled functions.

So I was able to build a histogram of the elapsed (wall-clock) run-times
of every function, and so construct a detailed picture of the actual
time spent in Linux kernel calls, and in interrupts or context switches
forced by other system processes. We ran some loads in the unnatural
state (for Linux) where almost every system daemon was stopped, so there
were no process context switches, and that gave us a pretty accurate
picture of the kernel and interrupt activity - we could measure the
longest interrupt that occurred in practise. Quite enlightening.

Nowadays folk use this kind of data to build a "flame graph":
<https://www.google.com/search?q=flame+graph&tbm=isch>.
When trying to optimise things, you learn to look for a function that
takes a long time, and that time is mostly spent in more than one called
function. Usually the expensive "leaf functions" have already been
optimised, because they're easy to predict and to find during authoring.
But the "internal" functions often look trivial and escape notice
because they don't spend much time themselves - yet they're responsible
for other operations that do cost a lot.

I should drag out tprof again, it still fills a need that's
substantially un-met by existing tools. It also contained a dynamic
memory profiling mode that was useful.

Clifford Heath.
 
On Mon, 13 Apr 2020 09:15:21 +1000, Clifford Heath
<no.spam@please.net> wrote:

On 13/4/20 3:44 am, jlarkin@highlandsniptechnology.com wrote:
On Sun, 12 Apr 2020 18:41:01 +0200, David Brown
david.brown@hesbynett.no> wrote:
Note also that Korea have found people who have had the virus,
recovered, and are now testing positive /again/.

But do they get sick again? Or infectious? PCR is very sensitive and
they may have a few viruses, or bits of viruses, still in their
bodies.

Viruses or "bits of viruses" would break down. They need to be replicating.
Click to expand...

Why? Viable C19 viruses survive in areosol droplets and are detected
in sewage, either entire viruses or detectable fragments.

They could even be "dead", locked downed by antibodies or something,
and still be detectable by PCR.

The important question is whether, after people recover, are they
infectuous, and can they get sick again?

Some "experts" say yes and yes. They say that immunity may be
short-lived. They expect a second wave of disease from people who have
already had it and recovered and get exposed and sick again. Ergo
we'll have it forever unless we develop a vaccine.

(But if immunity is short-lived, we'll need to be vaccinated often for
the rest of our lives. What a virus!)

The wonderful thing about expert opinions is that there are so many
available.


It's entirely possible that the virus is replicating in cells which are
far enough out on the periphery that the immune system cannot eradicate
them. So there is active infection that is still localised and not
causing symptoms - but could still infect others.

Experience with other diseases is that even these peripheral infections
die out over time. Not much time had elapsed in the Korean examples.

"Burn out" requires
either very tight containment (and we are way past that possibility, on
a world-wide basis), or massive immunity. And it looks like the
immunity is rather limited.

Many countries have peaked and declined, with a small fraction of the
population known to have been infected.

But those countries have not yet released lock-down and opened to
international travel. As soon as they do, it will be off like a rocket
again.
Click to expand...

Maybe so. But the international travel thing only matters if every bit
of a country is 100% free of the virus, which is unlikely after 10s of
thousands of infections. Small groups can pass it around and keep it
alive. Even worse if people can be re-infected.

Can no country ever release lockdown? Can the world survive years of
lockdown?



--

John Larkin Highland Technology, Inc

Science teaches us to doubt.

Claude Bernard
 
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote in
news:r6vvoi$121q$1@gioia.aioe.org:

On 2020-04-12 15:18, mpm wrote:
On Sunday, April 12, 2020 at 1:07:42 PM UTC-4, Phil Hobbs wrote:

The 1918 'flu went away, except in pigs.


So, if a pig has the sniffles, maybe I should wait a couple weeks
for the bacon? :)

Nah, bacon is fully cured.

Cheers

Phil Hobbs
Click to expand...

That's: Fooly CuredŠ
 
pcdhobbs@gmail.com wrote in news:371776fd-b460-44a0-9a32-
277ff59265ba@googlegroups.com:

Nah, bacon is fully cured.


How do you know it's not just asymptomatic?

It's got a US Government seal on it, so it must be true.

Cheers

Phil Hobbs
Click to expand...

Oh he killed that too. Lucky if there is one stamp per whole beast
now.

He killed the regulations agaisnt Asbestos use.

You know... that deadly repsiratory carcinogen.
 
On 2020-04-12 20:00, DecadentLinuxUserNumeroUno@decadence.org wrote:
pcdhobbs@gmail.com wrote in news:371776fd-b460-44a0-9a32-
277ff59265ba@googlegroups.com:

Nah, bacon is fully cured.


How do you know it's not just asymptomatic?

It's got a US Government seal on it, so it must be true.

Cheers

Phil Hobbs


Oh he killed that too. Lucky if there is one stamp per whole beast
now.

He killed the regulations agaisnt Asbestos use.

You know... that deadly repsiratory carcinogen.
Click to expand...

You're going more nonlinear than usual, which is boring. How about
reading a good book, say a P. G. Wodehouse?

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On Monday, April 13, 2020 at 2:41:05 AM UTC+10, David Brown wrote:
On 12/04/2020 00:40, Ricky C wrote:
On Saturday, April 11, 2020 at 1:44:55 PM UTC-4, whit3rd wrote:
On Saturday, April 11, 2020 at 8:21:51 AM UTC-7,
jla...@highlandsniptechnology.com wrote:

Look at the NUMBERS.

OK, that's probably good advice.

How long do we lock down until every single virus is gone?

That won't happen.

Then let's go back to work, suggest voluntary measures, and let
it burn out. Try to protect old people for the duration. The
sooner it burns out, the lower their risk.

The time has come to take your advice. The numbers are looking
like... another WW II. You didn't offer any numeric estimate of
the costs, nor of the benefits, but are ready to accept a
suggestion that (to my knowledge) no government on Earth wants to
implement.

And the ONLY QUESTION you think needs asking, is 'when does
COVID-19 become extinct'.

The illogic offends me.

With the current information we have on this virus there is no reason
to think it will "burn itself out" without killing many, many people
that aren't our older, "worthless" members. Clearly this disease has
the potential for a single case to spread throughout communities of
older people leaving many deaths in the wake. So there is not likely
to be a point that we can say it has "burned out" allowing us to
resume all of our previous activities as if nothing had happened,
UNLESS, we literally contain this virus like we would Ebola and have
zero new cases.

The poster child for being able to do this is China having reached
zero new infections in Wuhan and starting to release from lock down.
But people say their numbers are fake and we should not believe them.
So, so then look at South Korea where the high water mark for the
last five days has been 53 cases per day.

Note also that Korea have found people who have had the virus,
recovered, and are now testing positive /again/. "Burn out" requires
either very tight containment (and we are way past that possibility, on
a world-wide basis), or massive immunity. And it looks like the
immunity is rather limited.

Yes, China and South Korea have contained it rather successfully - but
not perfectly. And if they let people in from other countries again,
they'll get new outbreaks and new cycles of lockdown.
Click to expand...

In reality they are quarantining all the people they let in for fourteen days (as Australia is). They count as new infections, but they shouldn't start new epidemic outbreaks, and any that they might start are going to be localised, and contract tracing and isolating potential contacts seems to be good enough to contain them.

South Korea apparently never bothered to go into lock-down.

Ultimately, the
virus is not contained anywhere until it is contained /everywhere/.
Click to expand...

Depends what you mean by contained.

It may be possible to reach a reasonable balance of testing, tracking,
quarantines, temporary local lockdowns, etc., that let most of the world
work fairly normally even though the virus is not eliminated. That
could be a workable way of dealing with the virus, even without a vaccine..

Clearly it is possible to deal with this virus and not allow it to
ravage the population as it "burns out". Others are doing it. Why
are they so much better at dealing with this than the western
countries?

There are many reasons. But note that some western countries are doing
okay too.

Why does the USA in particular need to be a second class country when
it comes to dealing with a pandemic?

Having a third class leadership doesn't help.

It's difficult to say. There seem to be many reasons, with combined
effects. Italy and Spain both had good national health services and
reasonable welfare states, but have been very badly hit. Germany is in
the middle of Europe, has lots of dense urban centres, lots of immigrant
areas with poorer people who don't speak the language well - and yet
it's doing (relatively) fine.
Click to expand...

Timing does seem to come into it. Jumping on the problem early does seem to help a lot.

--
Bill Sloman, Sydney
 
On Monday, April 13, 2020 at 3:31:25 AM UTC+10, jla...@highlandsniptechnology.com wrote:
On Sun, 12 Apr 2020 18:27:39 +0200, David Brown
david.brown@hesbynett.no> wrote:

On 12/04/2020 04:52, Ricky C wrote:

That's your straw man argument. We don't need a vaccine if we can
eliminate the virus. Do they still vaccinate for smallpox?


Smallpox was eliminated by vaccines - so we don't need vaccines for it
/now/.

Measles was almost eliminated by vaccines, but there so many
"anti-vaxer" morons that the elimination failed, and there are still
outbreaks - so kids still need the vaccines. The same applies to polio.

Covid-19 can, hopefully, be eliminated by vaccines. Whether it will or
not is another matter - but good vaccines will certainly prevent it
being a problem.

But can Covid-19 be eliminated /without/ a vaccine? I don't think so.
It is far too wide-spread for that. It can be kept at bay by other
measures, and some places can be kept free of it, but if there is
freedom of movement, outbreaks will always return.
Click to expand...

Strict quarantine for 14 days should prevent most outbreaks, and vigorous contact racing amd rigourous isolation of all potential infectees can keep outbreaks small,brief and limited.
We can truly eradicate a virus that infects only humans. Smallpox,
polio, measles. Influenza and corona can jump species.
Click to expand...

Smallpox is sufficiently closely related to cow-pox for Jenner's vaccination to have worked. Measles came from cows (rinderpest). Canine distemper is also closely related to the measles virus.

Coronavirus epidemics of various sizes hit most every year. They die
out without vaccination, and a new strain appears next cold season.

https://en.wikipedia.org/wiki/Coronavirus#Evolution
Click to expand...

But they don't kill people.

--
Bill Sloman, Sydney
 
On Sunday, April 12, 2020 at 12:19:24 PM UTC-4, David Brown wrote:
On 11/04/2020 17:21, jlarkin@highlandsniptechnology.com wrote:

When I did more realtime programming, I generally knew how long it
would take for a chunk of code to execute. Kids these days haven't the
faintest idea, and are afraid to push interrupt rates or state machine
rep rates. Sometimes I have to get an oscilloscope and show them how
fast a 600 MHz dual-core ARM can really compute. We got some
interesting numbers on the Zynq+Linux.

You claim this, and yet you don't think programming involves science,
causality, maths or system dynamics? Is that because you simply don't
understand what those terms mean? Or that you are lying about the
programming you have done? Or that you think /you/ have done "real"
programming, but no one else does? Or - and I strongly suspect this -
you are a troll who finds perverse entertainment in annoying people by
saying blatantly stupid things.
Click to expand...

You're way off base.

John, being a solid programmer -- I've seen his code, and he's posted
code here, too -- just has a palpable disdain for what Bill Gates has
turned the 'discipline' into.

(You can tell a lot about a person, reading their code. You can see
if someone's clear-headed and reasoning, or confused and fiddling,
for one.)

Cheers,
James Arthur
 
On Sunday, April 12, 2020 at 5:04:27 PM UTC-4, Phil Hobbs wrote:
On 2020-04-12 15:18, mpm wrote:
On Sunday, April 12, 2020 at 1:07:42 PM UTC-4, Phil Hobbs wrote:

The 1918 'flu went away, except in pigs.


So, if a pig has the sniffles, maybe I should wait a couple weeks for the bacon? :)

Nah, bacon is fully cured.
Click to expand...

Unlike his jokes? :)
 
On Sunday, April 12, 2020 at 8:32:41 PM UTC-4, Bill Sloman wrote:
On Monday, April 13, 2020 at 2:41:05 AM UTC+10, David Brown wrote:
On 12/04/2020 00:40, Ricky C wrote:

The poster child for being able to do this is China having reached
zero new infections in Wuhan and starting to release from lock down.
But people say their numbers are fake and we should not believe them.
So, so then look at South Korea where the high water mark for the
last five days has been 53 cases per day.

Note also that Korea have found people who have had the virus,
recovered, and are now testing positive /again/. "Burn out" requires
either very tight containment (and we are way past that possibility, on
a world-wide basis), or massive immunity. And it looks like the
immunity is rather limited.

Yes, China and South Korea have contained it rather successfully - but
not perfectly. And if they let people in from other countries again,
they'll get new outbreaks and new cycles of lockdown.

In reality they are quarantining all the people they let in for fourteen days (as Australia is). They count as new infections, but they shouldn't start new epidemic outbreaks, and any that they might start are going to be localised, and contract tracing and isolating potential contacts seems to be good enough to contain them.

South Korea apparently never bothered to go into lock-down.
Click to expand...

Yes, they were highly rigorous with tracing and testing. The US couldn't do that when it was practical because we didn't have enough test kits to test enough people.

I'm not sure where the US is with contact tracing. You would think we'd be all over that in the less infected areas. That is the one sure way to reduce infection rates without slamming on the economy brakes. You would think the two would be a miracle cure. But our rural areas with low case counts are still climbing. I can't find any sources that provide history counts by county, just today's total. So I don't know how fast they are climbing.. I guess I'll need to pick a few counties and keep my own track record.

I haven't been able to find much info on contact tracing in VA. As many point out, if we want to get out of lockdown, we need to have a way of preventing the same mistakes we made the first time. We need much more testing and we need highly effective contact tracing. Then we can quarantine anyone exposed to the disease rather than effectively quarantining everyone.


Ultimately, the
virus is not contained anywhere until it is contained /everywhere/.

Depends what you mean by contained.
Click to expand...

Not really. Travel can be restricted to prevent inoculations. Anyone traveling into a disease free area is in quarantine for 14 days. No question.


It may be possible to reach a reasonable balance of testing, tracking,
quarantines, temporary local lockdowns, etc., that let most of the world
work fairly normally even though the virus is not eliminated. That
could be a workable way of dealing with the virus, even without a vaccine.

Clearly it is possible to deal with this virus and not allow it to
ravage the population as it "burns out". Others are doing it. Why
are they so much better at dealing with this than the western
countries?

There are many reasons. But note that some western countries are doing
okay too.

Why does the USA in particular need to be a second class country when
it comes to dealing with a pandemic?

Having a third class leadership doesn't help.

It's difficult to say. There seem to be many reasons, with combined
effects. Italy and Spain both had good national health services and
reasonable welfare states, but have been very badly hit. Germany is in
the middle of Europe, has lots of dense urban centres, lots of immigrant
areas with poorer people who don't speak the language well - and yet
it's doing (relatively) fine.

Timing does seem to come into it. Jumping on the problem early does seem to help a lot.
Click to expand...

It makes the difference between life and death for many.

--

Rick C.

---- Get 1,000 miles of free Supercharging
---- Tesla referral code - https://ts.la/richard11209
 
On Mon, 13 Apr 2020 09:33:14 +1000, Clifford Heath
<no.spam@please.net> wrote:

On 13/4/20 4:07 am, jlarkin@highlandsniptechnology.com wrote:
On a dual-core 600 MHz ARM running Linux, if a high priority
application program runs a tight loop, it will be suspended
occasionally by other tasks and by the OS and drivers, like ethernet.
What is the time profile of the suspensions? How often might that
tight loop be suspended, and for how long?
I haven't read the thread, but JLs comment reminds me of a study I did
around 2003. I wrote a real-time profiler called "tprof" for Linux&gcc
that used the Pentium TSC, a 64-bit clock-rate real-time counter
register. At 2GHz, the TSC register has a granularity of 0.5ns.

The profiler recorded the entry time to every profiled function and (by
hooking the return using tail-patching) could subtract that time from
the function's exit time. It also recorded the total elapsed time spent
in calls from that function into other profiled functions.

So I was able to build a histogram of the elapsed (wall-clock) run-times
of every function, and so construct a detailed picture of the actual
time spent in Linux kernel calls, and in interrupts or context switches
forced by other system processes. We ran some loads in the unnatural
state (for Linux) where almost every system daemon was stopped, so there
were no process context switches, and that gave us a pretty accurate
picture of the kernel and interrupt activity - we could measure the
longest interrupt that occurred in practise. Quite enlightening.

Nowadays folk use this kind of data to build a "flame graph":
https://www.google.com/search?q=flame+graph&tbm=isch>.
When trying to optimise things, you learn to look for a function that
takes a long time, and that time is mostly spent in more than one called
function. Usually the expensive "leaf functions" have already been
optimised, because they're easy to predict and to find during authoring.
But the "internal" functions often look trivial and escape notice
because they don't spend much time themselves - yet they're responsible
for other operations that do cost a lot.

I should drag out tprof again, it still fills a need that's
substantially un-met by existing tools. It also contained a dynamic
memory profiling mode that was useful.

Clifford Heath.
Click to expand...

Sometimes we raise a port pin at the entry of a chunk of code and drop
it at the end, and look at that with an oscilloscope. A routine can be
optimized for worst-case execution time, which usually matters more
than average. A little thinking can sometimes reduce worst-case by
5:1.

One port pin can be made to blip or change state at several places in
a segment of code. That can look cool on infinite persistance.

I have histogrammed the program counter. That can be a revelation. See
what's hogging the resources.





--

John Larkin Highland Technology, Inc

Science teaches us to doubt.

Claude Bernard
 
On 13/4/20 12:07 pm, jlarkin@highlandsniptechnology.com wrote:
On Mon, 13 Apr 2020 09:33:14 +1000, Clifford Heath
I should drag out tprof again, it still fills a need that's
substantially un-met by existing tools. It also contained a dynamic
memory profiling mode that was useful.

Sometimes we raise a port pin at the entry of a chunk of code and drop
it at the end, and look at that with an oscilloscope. A routine can be
optimized for worst-case execution time, which usually matters more
than average. A little thinking can sometimes reduce worst-case by
5:1.

One port pin can be made to blip or change state at several places in
a segment of code. That can look cool on infinite persistance.
Click to expand...

Great way to look at exactly one thing at a time, and quite unlike what
a proper profiler does.

I have histogrammed the program counter. That can be a revelation. See
what's hogging the resources.
Click to expand...

That's a trivial profiler, and comes built-in to Linux tools, always has
(since 1976 at least). It tells you nothing about context switch or
interrupt latencies though, because it only samples during the program's
assigned timeslots i.e. while it's running.

CH
 
On Sun, 12 Apr 2020 20:32:02 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-04-12 20:00, DecadentLinuxUserNumeroUno@decadence.org wrote:
pcdhobbs@gmail.com wrote in news:371776fd-b460-44a0-9a32-
277ff59265ba@googlegroups.com:

Nah, bacon is fully cured.


How do you know it's not just asymptomatic?

It's got a US Government seal on it, so it must be true.

Cheers

Phil Hobbs


Oh he killed that too. Lucky if there is one stamp per whole beast
now.

He killed the regulations agaisnt Asbestos use.

You know... that deadly repsiratory carcinogen.


You're going more nonlinear than usual, which is boring. How about
reading a good book, say a P. G. Wodehouse?

Cheers

Phil Hobbs
Click to expand...

One of the Pig books would be appropriate here. Lord Marshmorton at
Blandings.

"And he's very sound on pigs."






--

John Larkin Highland Technology, Inc

Science teaches us to doubt.

Claude Bernard
 
On 13/4/20 9:51 am, jlarkin@highlandsniptechnology.com wrote:
> Can the world survive years of lockdown?

Globalism can't. Countries that aren't mostly self-sufficient can't.

Australia has a lot of work to do to rebuild local industries. I suspect
the USA does too, but not as much. You've got local skills everywhere,
much more than we do; our manufacturing has been gutted for so long that
most of the kids have never even seen someone using a lathe or a welder,
or has repaired their bike. An entire generation has grown up playing
video games instead of tinkering in the shed, and they've turned into
bloody useless "engineers". The genuine article is almost extinct.

CH
 
On Sunday, April 12, 2020 at 4:51:33 PM UTC-7, jla...@highlandsniptechnology.com wrote:

> Can no country ever release lockdown?

Sure. China , South Korea have basically done it.

> Can the world survive years of lockdown?

The Four Horsemen of the Apocalypse include war, famine, disease, pestilence.
There's no horseman for lockdown, so I'd say probably yes.

Worldwide, or nation-wide, one would not see a single protocol in place; you clamp down
the highest propogation-rate sites as they become infected, using emergency powers,
and when the emergency goes away, so do the lockdowns.
 
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote in
news:r70bu1$6m5$1@gioia.aioe.org:

On 2020-04-12 20:00, DecadentLinuxUserNumeroUno@decadence.org
wrote:
pcdhobbs@gmail.com wrote in news:371776fd-b460-44a0-9a32-
277ff59265ba@googlegroups.com:

Nah, bacon is fully cured.


How do you know it's not just asymptomatic?

It's got a US Government seal on it, so it must be true.

Cheers

Phil Hobbs


Oh he killed that too. Lucky if there is one stamp per whole
beast
now.

He killed the regulations agaisnt Asbestos use.

You know... that deadly repsiratory carcinogen.


You're going more nonlinear than usual, which is boring. How
about reading a good book, say a P. G. Wodehouse?

Cheers

Phil Hobbs
Click to expand...

You guys calling me something other than usual, and boring, yada
fuckin' yada yada... is lame. Do you see me calling you boring, even
though you have had your moments?

nonlinear? wtf are you mumbling about now.

You barked about a seal on meat. I made a joke about how they
reduced inspection requisites.

And about how Trump cries about Asbestos.

And you're bored and feel the need to release a tell all fart from
your upper anus into the group.

You may not be boring but that stench the thread now carries is all
you. It was the meat... no more.
 
On Sunday, April 12, 2020 at 11:22:43 PM UTC-4, Clifford Heath wrote:
On 13/4/20 9:51 am, jlarkin@highlandsniptechnology.com wrote:
Can the world survive years of lockdown?

Globalism can't. Countries that aren't mostly self-sufficient can't.

Australia has a lot of work to do to rebuild local industries. I suspect
the USA does too, but not as much. You've got local skills everywhere,
much more than we do; our manufacturing has been gutted for so long that
most of the kids have never even seen someone using a lathe or a welder,
or has repaired their bike. An entire generation has grown up playing
video games instead of tinkering in the shed, and they've turned into
bloody useless "engineers". The genuine article is almost extinct.
Click to expand...

Do you stand in your yard shaking you cane at them?

This is a song played many, many years ago in ancient Greece and ever since.

--

Rick C.

---+ Get 1,000 miles of free Supercharging
---+ Tesla referral code - https://ts.la/richard11209
 
On 2020-04-12 21:39, dagmargoodboat@yahoo.com wrote:
On Sunday, April 12, 2020 at 12:19:24 PM UTC-4, David Brown wrote:
On 11/04/2020 17:21, jlarkin@highlandsniptechnology.com wrote:

When I did more realtime programming, I generally knew how long it
would take for a chunk of code to execute. Kids these days haven't the
faintest idea, and are afraid to push interrupt rates or state machine
rep rates. Sometimes I have to get an oscilloscope and show them how
fast a 600 MHz dual-core ARM can really compute. We got some
interesting numbers on the Zynq+Linux.

You claim this, and yet you don't think programming involves science,
causality, maths or system dynamics? Is that because you simply don't
understand what those terms mean? Or that you are lying about the
programming you have done? Or that you think /you/ have done "real"
programming, but no one else does? Or - and I strongly suspect this -
you are a troll who finds perverse entertainment in annoying people by
saying blatantly stupid things.

You're way off base.

John, being a solid programmer -- I've seen his code, and he's posted
code here, too -- just has a palpable disdain for what Bill Gates has
turned the 'discipline' into.

(You can tell a lot about a person, reading their code. You can see
if someone's clear-headed and reasoning, or confused and fiddling,
for one.)
Click to expand...

And whether it's cut-and-paste from Stack Overflow. ;)

(Like stitching together app note circuits, only worse.)

Cheers

Phil Hobbs


--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
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