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Comments

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Torvalds: No Opinion On Systemd

marcosdumay Re:Misleading slashdot headline (380 comments)

Maybe OS kernels are indeed too small nowadays, and we do need some basic services packaged in an integrated suite.

Or maybe it's due time to POSIX to die, and to divide issues differently between kernel and user space.

Anyway, the ascendence of Systemd is clear evidence that the way we organize our software is currently outdated.

5 days ago
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Astronomers Find Star-Within-a-Star, 40 Years After First Theorized

marcosdumay Re:Wait, these are for real? (72 comments)

What do you mean by a stable star anyway?

about a week ago
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Ask Slashdot: What Smartwatch Apps Could You See Yourself Using?

marcosdumay Re:The war that no one wanted (471 comments)

I just love the 4k TV trend.

Those rich people parting with their money now will finance a cheap very good quality set of computer monitors for me in just a few years.

about two weeks ago
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Unpopular Programming Languages That Are Still Lucrative

marcosdumay Re:Python is eating Perls lunch (385 comments)

Python have some problems with I/O being allowed only in ASCII or Unicode on some circunstances, depending on your version. It also has some problems with composing codepoints, lengths, encode translations, and other of that stuff that nobody does right.

Yet, Python has the most comprehensive support for Unicode of any language that I looked out, outside of C/C++. (Beats Perl 5 in any day. I don't know about 6.) It's just that no language has complete support (except for C/C++, that properly ignores the entire issue).

about two weeks ago
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Unpopular Programming Languages That Are Still Lucrative

marcosdumay Re:Python is eating Perls lunch (385 comments)

Can any language do unicode right yet?

You can throw away any language that uses UTF-16 right from the start. What's left is C/C++, if you are careful enough.

about two weeks ago
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Ask Slashdot: What Are the Strangest Features of Various Programming Languages?

marcosdumay Re:Infoworld... pass (729 comments)

you can give a type to an arbitrary pointer, and do strongly typed enums that way?

Strongly typed... C... Those things do not belong in the same sentence.

The point is probably that there must be some behaviour, and it's better to define it. Thus, they defined. I hightly doubt it has any practical application, besides minimizing the damage in case of some kind of error.

But yeah, it's amusing.

about two weeks ago
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Ask Slashdot: What Are the Strangest Features of Various Programming Languages?

marcosdumay Re:Infoworld... pass (729 comments)

From the GNU C manual (in the section about bit fields):

You can also specify a bit field of size 0, which indicates that subsequent bit fields not further bit fields should be packed into the unit containing the previous bit field. This is likewise not generally useful.

I guess now I have a new favorite C feature... Well, as soon as I actually understand what this means.

Also, GCC accepts empty structs, and they use no memory! I should look at the C specs more often.

about two weeks ago
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The IPv4 Internet Hiccups

marcosdumay IPv6 is much simpler than IPv4 (248 comments)

Really, even if you are completely ignorant about it, it does not take much more than a short reading to see how simpler IPv6 is. That's why it corrects so many issues.

The problem with IPX style local names assignment is in security. Doing it in the open, wild Internet is a certain way to destroy it. The nearest option that's actualy usable is dynamic DNS, and it's quite widspread.

about a month ago
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How long ago did you last assemble a computer?

marcosdumay Re:Performance seems to have plateaued (391 comments)

I just decided to upgrade my 2011 computers, so I got out to searching what improved.

Changed the heat sinks, fans, and casing. Also, changed the power supply of one of them. Nothing else was worth it.

A high resolution display is on my list, but it's still too expensive, so I'm waiting...

about a month and a half ago
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Siberian Discovery Suggests Almost All Dinosaurs Were Feathered

marcosdumay Re:Whelp. (139 comments)

What happened to Slashdot lately?

There's a xkcd for that: http://xkcd.com/1104/

about 2 months ago
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Switching From Microsoft Office To LibreOffice Saves Toulouse 1 Million Euros

marcosdumay Re:administrative operations (296 comments)

"Administrative operations" is everything a governemnt does.

about 2 months ago
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New Mayhem Malware Targets Linux and UNIX-Like Servers

marcosdumay Re:Derp (168 comments)

What about just not allowing passwords to connect from a network? Is it too simple, or what?

It's simply stupid to prohibit robots from connecting. It means you'll never be able to automate your work. It's also not viable to lock the system, as it'll turn any bot anywhere into a severe DoS attak. And trying to discern intent from behaviour is way too hard a task for a computer.

about 2 months ago
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The First Person Ever To Die In a Tesla Is a Guy Who Stole One

marcosdumay Re:Unsafe at any speed (above 100 MPH)... (443 comments)

You can't change the referential during calculations. Not on Classical Mechanics, because referentials can not accelerate, and in general relativity things are much more complex. Thus, no, it does not take the same amount of energy to accelerate from 0 to 10mph as it does from 90 to 100mph.

about 2 months ago
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The First Person Ever To Die In a Tesla Is a Guy Who Stole One

marcosdumay Re:Unsafe at any speed (above 100 MPH)... (443 comments)

What may help you is realising that classical mechanics do not hold for acelerating referentials. And, yes, the added energy varies with the choosen referential.

about 2 months ago
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The First Person Ever To Die In a Tesla Is a Guy Who Stole One

marcosdumay Re:Unsafe at any speed (above 100 MPH)... (443 comments)

You're not talking a huge difference in speed at that point...

Are you aware that the kinetic energy is proportional to the SQUARE of the speed, right? There is a huge difference in safety - much bigger than between 40MPH and 70MPH.

about 2 months ago
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The AI Boss That Deploys Hong Kong's Subway Engineers

marcosdumay Re:It's here already? (162 comments)

You know, in a imaginary future where machines outcompete humans in every task, and no job is available for more humans to perform anymore, all those problems you cited just go away.

about 2 months ago
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Ask Slashdot: Correlation Between Text Editor and Programming Language?

marcosdumay Re: vi, Emacs or IDE (359 comments)

Syntax highlighting? Does that even work in the terminal version?

Yes, it works on the terminal. Autocompletion, and real time compiling also do.

about 3 months ago
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Ask Slashdot: What Would It Take For You To Buy a Smartwatch?

marcosdumay Re:No plans to wear a watch (427 comments)

Nah. Each one of those clocks are showing their own time, that may disagree by minutes or entire hours... I don't use a watch, but only use the computers and telephone clocks.

about 3 months ago
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Ask Slashdot: What Would It Take For You To Buy a Smartwatch?

marcosdumay Re:Only if... (427 comments)

How would a telephone call work on a watch? One can put it near either the mouth or a ear, not both, and in any of those situations, it's quite an unconfortable position.

about 3 months ago
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When will large-scale IPv6 deployment happen?

marcosdumay Re:Not so quick (305 comments)

Thanks for the rerash.

People do use VoIP. And of course people don't use services that break in a NAT, they can't.

about 3 months ago

Submissions

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Share of Windows computers falling

marcosdumay marcosdumay writes  |  more than 3 years ago

marcosdumay (620877) writes "PCWorld is reporting that april was a good month for Linux, between the niceties it is reporting that the share of Windows computers is falling, as evidenced by the fact that Windows sales are growing slower than PC sales and that the shares of Wikipedia browsers using Microsoft Windows (all versions) decreased from 85.63 in July 2010 to 81.78 in March of this year. In fact that share is decreasing for longer, from 89.50% at April 2009."
Link to Original Source

Journals

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Free Software and Code Reuse

marcosdumay marcosdumay writes  |  about 2 years ago

By 2006 I suspected free software developers could make better use of code reuse than proprietary software developers, and with that achieve a much better productivity with time. By then I tought that time had already come, what is clearly wrong, but I've being collecting data since then, and summarized it in an article.

If anybody ever gets here (who reads those journals anyway?), you are invited to read the article.

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Tracking Firefox's memory usage

marcosdumay marcosdumay writes  |  more than 8 years ago

I want to know if the memory bug of Firefox is caused by an extension, and, if so, which one. So, if you have a huge memory usage (100+MB) even after closing all the tabs but one, please leave a comment here telling your usage and which extensions you have.

Also, if you know how to easily copy the extensions list for pasting here, tell me.

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