Friday, December 7, 2018

Digest for comp.programming.threads@googlegroups.com - 6 updates in 5 topics

Elephant Man <conanospamic@gmail.com>: Dec 05 08:27PM

Article d'annulation émis par un modérateur JNTP via Nemo.
Elephant Man <conanospamic@gmail.com>: Dec 07 09:08AM

Article d'annulation émis par un modérateur JNTP via Nemo.
Steve Watt <steve.removethis@Watt.COM>: Dec 07 12:02AM

In article <10ef65a2-d11a-46d8-9cac-cd24c4183f6f@googlegroups.com>,
>Hi All,
 
>It would be of great help if someone could tell me how to find if two threads are trying to operate on a same mutex?
 
>I also want to find the entire communication that happens with respect to locks while the program is being run,
 
The search term you're looking for is "mutex contention".
 
The answer depends entirely on your operating environment. Windows? Linux? FreeBSD? MVS?
 
Assuming something UNIX-like, valgrind is your friend. Inside a dog, it's too dark to read.
--
Steve Watt KD6GGD PP-ASEL-IA ICBM: 121W 56' 57.5" / 37N 20' 15.3"
Internet: steve @ Watt.COM Whois: SW32-ARIN
Free time? There's no such thing. It just comes in varying prices...
Horizon68 <horizon@horizon.com>: Dec 06 09:16AM -0800

Hello...
 
 
My new "invention" that is an enhanced fully scalable algorithm is
finished and is coming soon..
 
I have just enhanced "much" more my "invention" of a scalable algorithms
of a scalable reference counting with efficient support for weak
references, i think i am the only one who has invented this scalable
algorithm, because it is the only one who is suited for non-garbage
collecting languages such as C++ and Rust and Delphi, and i have just
made my enhanced algorithm fully scalable on manycores and multicores
and NUMA systems by using a clever scalable algorithms, so i think i
will "sell" my new invention that is my enhanced scalable reference
counting algorithm with efficient support for weak references and its
implementation to Microsoft or to Google or to Intel or Embarcadero
 
And about memory safety and memory leaks in programming languages..
 
Memory safety is the state of being protected from various software bugs
and security vulnerabilities when dealing with memory access, such as
buffer overflows and dangling pointers.
 
I am also working with Delphi and FreePascal and C++, and as you have
noticed i have invented a scalable reference counting with efficient
support for weak references that is really powerful, read about it and
download it from here(it is the Delphi and FreePascal implementation):
 
https://sites.google.com/site/scalable68/scalable-reference-counting-with-efficient-support-for-weak-references
 
And you have to understand that this invention of mine solves
the problem of dangling pointers and it solves the problem of memory
leaks and this reference counting of mine is also "scalable", and i
think that this invention of mine is the only one that you will find,
and you will not find it in C++ and you will not find it in Rust.
 
Also Delphi and FreePascal detect the out of bounds in arrays and
strings like this by making range checks enabled:
 
In the {$R+} state, all array and string-indexing expressions are
verified as being within the defined bounds, and all assignments to
scalar and subrange variables are checked to be within range. **If a
range check fails, an ERangeError exception is raised (or the program is
terminated if exception handling is not enabled).
 
Range Checks is OFF by default. To enable it, you can add this directive
to your code:
 
{$RANGECHECKS ON}
 
You can use also generic (template) style containers for bound checking,
my following writing to understand more:
 
About C++ and Delphi and FreePascal generic (template) style containers..
 
Generics.Collections of Delphi and FreePascal for generic (template)
style containers that you can download from here:
 
https://github.com/maciej-izak/generics.collections
 
TList of Generics.Collections of Delphi and FreePascal is implemented
the same as STL C++ Vectors: they are array-based. And since data
structureS are the same then also performance should be comparable.
 
So I've done a small test between Tlist of Generics.Collections of
Delphi and FreePascal and C++ vector, it's an addition of 3000000
records of 16 byte length, in one loop, here is the results:
 
Tlist time = 344ms
Vector time = 339ms
 
It seems they are the same, the test use only the function ( List.add ,
vector.push_back).
 
STL vectors with the at() and Delphi TList of Generics.Collections of
Delphi and FreePascal perform bounds checking.
 
 
So i think that with my invention above and with all my other inventions
that are my scalable algorithms and there implementations and such in
C++ and Delphi and FreePascal that you will find
in my following website, Delphi and FreePascal have become powerful:
 
https://sites.google.com/site/scalable68/
 
 
 
Thank you,
Amine Moulay Ramdane.
Horizon68 <horizon@horizon.com>: Dec 05 03:20PM -0800

Hello...
 
I am more smart, and you will ask why i have not included
economy etc. in the following:
 
I think that order comes from the fact that we are security
for oneself and others, and what are the causes that we
are security for oneself and others ? we are security
for oneself and others for different causes, here they
are:
 
1- We are good morality that takes
care of security.
 
2- We are "sensibility" that takes care of security
 
3- We are more disciplined to take care of the system
as a critical system that needs the right requirements
for the right security both locally and globally.
 
4- We are fear that takes care of security of oneself
or others.
 
 
 
Because when i say: We are good morality that takes care of security,
i have proved in my previous post that morality is perfection at best,
so it is "inherent" to saying, We are good morality that takes care of
security, that it must be like a decent perfection that doesn't cause
desorder, so i think that my above answer is correct.
 
 
 
Thank you,
Amine Moulay Ramdane./
Horizon68 <horizon@horizon.com>: Dec 05 01:48PM -0800

Hello,
 
Read this:
 
Read all my following post about economy..
 
About Russia's economy...
 
Read this:
 
Why Switzerland was ranked the most economically free nation in Europe ?
 
The important characteristics of Switzerland are:
 
1. Rule of law
 
2. Optimization of the Government size
 
3. Regulatory efficiency
 
4. Open markets
 
 
Read more here:
 
https://lenews.ch/2016/02/03/why-switzerland-was-ranked-the-most-economically-free-nation-in-europe/
 
So now about "Russia", Russia lacks many of the requirements for strong
economy, read the following to notice it:
 
"Russia's transition from a centrally planned economy to a more
market-based system has stalled, and the country remains predominantly
statist. Further economic reforms have been subordinated to the
imperatives of political stability and government longevity. The private
sector has been marginalized by structural and institutional constraints
caused by ever-growing government encroachment into the marketplace.
Large state-owned institutions and an inefficient public sector dominate
the economy. The judiciary is vulnerable to corruption, and weak
protection of property rights undermines prospects for optimal long-term
economic development."
 
Read more here:
 
https://www.heritage.org/index/country/russia
 
 
I think China is having a problem, it is not the trade war, it is
the fact that it has done huge investments abroad, and many of those
investments abroad are "inefficient" investments , they are bad
investment, so it is causing to China more and more debt, and with this
China is taking too much "risk" can become "dangerous" for China,
here is the proof of that, look at this interesting video:
 
Is Xi Jinping HOLDING BACK Chinese EXPANSION?
 
https://www.youtube.com/watch?v=raooYdCh7vY
 
And by analogy, because it is a risk that is dangerous, this risk that
is dangerous look like the following risk when i said:
 
==
 
I said:
 
"At the monetary policy level, inject or withdraw a mass
monetary policies help to control inflation and to stimulate
the economy by credit which result in more overall spending which
it leads to economic growth and more investment which is beneficial for
growth , except that monetary policy has a weakness if the borrowers are
too much at risk of bankruptcy as was also the case in the united states
in the crisis of year 2000. "
 
Here is the proof, read the following:
 
In 2001, when the recession hit the US economy, the Fed lowered the
federal funds rate, increasing the liquidity in the economy. The
borrowers were mainly those without jobs and income to back these loans,
to buy houses. The easy credit plus upward spiral of home prices, made
investments in high-yielding subprime mortgages increase further.
 
Read more here:
 
Reasons For The Late 2000s Financial Crisis
 
https://themarketmogul.com/reasons-for-the-late-2000s-financial-crisis/
 
==
 
 
 
Still about economy and quality..
 
Why Doesn't DUBAI care about OIL?
 
Dubai has done the following to diversify and make successful its
economy and become rich:
 
- Lower taxes
 
- Special economic zones
 
- High degree of immigration freedom
 
- It has attracted more investment
 
 
Look at this video to know more about DUBAI:
 
https://www.youtube.com/watch?v=aEs1uOzt3KM
 
 
Still about quality
 
As you have noticed growth in France will lower
the unemployment in a significant way, but consumption
is also a way in economics to lower unemployment
more, but there is also another way to reduce unemployment is also to
build quality products and services like in Germany to be more
competitive and sell more locally and sell more globally to other
countries, so I think France must also pay attention to the education
sector that should become more efficient and of a better quality,
because innovation and quality are dependent on it! and in
being more effective in economy and education France will attract more
and more smart people who innovate more and who create quality and
growth, but I think that France is better "aware" today to face its
challenges and I think it is able to meet them.
 
Also I think that we have not to be pessimistic about France, because
look at its growth and look at its other economic indicators:
 
First look at the growth of France here:
 
"Today's growth remains lower than the one that prevailed during the
period 1975-2007, with a rate of 2.1% per year on average," observes
Yannick L'Horty, a professor at the university. Paris-East -
Marne-la-Vallée. However, it helps to increase the number of employees
in the private sector, "so that unemployment will probably start to
decline, at a very measured pace . "
 
and look also at this about France:
 
According to Bpifrance's semi-annual business survey, published on
Monday, 41% of small and medium-sized enterprises (SMEs) report
recruitment difficulties, an increase of seven points over a year. This
indicator has never been higher since 2002. This situation reflects the
inadequacy of supply and demand for employment. The government wants to
remedy this , through its Skills Investment Plan (CIP), which plans to
train by the year 2022 two million low-skilled people or remote from the
world of work. But, as Mr. Martin points out, this program "has not yet
produced its effects" since it is still in its infancy.
 
Read more here to notice it:
 
https://translate.google.com/translate?hl=en&sl=auto&tl=en&u=https%3A%2F%2Fwww.lemonde.fr%2Femploi%2Farticle%2F2018%2F07%2F25%2Fle-nombre-de-chomeurs-a-augmente-de-0-1-au-second-trimestre-2018_5335727_1698637.html
 
So i think France is on the right path, and France must also balance the
budget.
 
Also here is my other thoughts of what France can also do:
 
I observed more closely the model of for example the French system,
and I found that contrarily to England, for example the weight of the
public service in France is much more than that of England, so what can
we also do in France to unlock economic growth and reduce the rate of
unemployment? i think there is another solution that is reduce the size
of the state to increase public revenue too, and also "reduce" taxes,
because it is agreed that a lower taxes mechanically stimulates growth
by the effect of the "multiplier "tax effect": indeed, it results in an
increase in households or corporate profits, which favors consumption
and/or investment, and therefore, indirectly, the production and
employment, so it reduces unemployment.
 
I have to be more precise about USA:
 
I said before on my previous post that:
 
"At the monetary policy level, inject or withdraw a mass
monetary policies help to control inflation and to stimulate
the economy by credit which result in more overall spending which
it leads to economic growth and more investment which is beneficial for
growth , except that monetary policy has a weakness if the borrowers are
too much at risk of bankruptcy as was also the case in the united states
in the crisis of year 2000. "
 
Here is the proof, read the following:
 
In 2001, when the recession hit the US economy, the Fed lowered the
federal funds rate, increasing the liquidity in the economy. The
borrowers were mainly those without jobs and income to back these loans,
to buy houses. The easy credit plus upward spiral of home prices, made
investments in high-yielding subprime mortgages increase further.
 
Read more here:
 
Reasons For The Late 2000s Financial Crisis
 
https://themarketmogul.com/reasons-for-the-late-2000s-financial-crisis/
 
So reread my following thoughts:
 
About offshoring and immigration and macroeconomics..
 
I am a white Arab, and here is my questions and my answers about
offshoring and immigration and macroeconomics, read my following thoughts:
 
Questions:
 
What do i think about offshoring and macroeconomics?
 
Answer:
 
At the monetary policy level, inject or withdraw a mass
monetary policies help to control inflation and to stimulate
the economy by credit which result in more overall spending which
it leads to economic growth and more investment which is beneficial for
growth , except that monetary policy has a weakness if the borrowers are
too much at risk of bankruptcy as was also the case in the united states
in the crisis of year 2000.
 
Also the second lever is the Keynes tax policy:
 
Keynes recommends using an expansionary fiscal policy in case
recession: reduce taxes and increase the state. In case of inflation, he
recommends doing the opposite.
 
The other criticism I make on the far right political parties, is that
the far right makes us think offshoring as being just bad, but I do not
agree with them, because read the following:
 
Offshoring increases demand for more workers
"qualified" and also have a significant positive effect on
productivity, in Canada it is an increase in the "productivity" of
order of about 10%, also according to some recent research
the Offshoring of materials and services have both a
positive and not negligible effect on productivity.
 
When it comes to the repercussion on employment, the majority of
empirical studies suggest that the general repercussions of offshoring
on the employment levels are low (Amiti and Wei 2005, Mankiw and Swagel
2006).
 
For proof, read the following document:
 
https://translate.google.com/translate?hl=en&sl=auto&tl=en&u=https%3A%2F%2Fwww150.statcan.gc.ca%2Fn1%2Fpub%2F11f0027m%2F2008055%2Fs6-fra.htm
 
 
And about immigration now:
 
Look at this following video about:
 
Why Does the USA Need More IMMIGRANTS?
 
You will notice that the West "needs" immigrants because they are also
good for economic "growth".
 
But please look carefully at the following video to understand more:
 
https://www.youtube.com/watch?v=DmRgnDrhE9o
 
 
Thank you,
Amine Moulay Ramdane.
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