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Comments

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Linux Needs Resource Management For Complex Workloads

Lisias Re:This obsession with everything in RAM needs to (161 comments)

If you're going to MARK/RELEASE why not malloc/free? Same goes for languages like Java - if you have to null a reference for it to get collected, how is that different from free() or delete? It's still a line of code you have to remember to put in your program at the right place.

For two reasons:

1) It's easier to MARK the heap on the beginning of the task, using it as there's no tomorrow and then just RELEASE everything at once on the end. (nothing prevents you from deleting some pointers in the job to save memory).

2) You avoid HEAP fragmentation, easing the memory management's life.

Anyway, it appears to me that you missed the point. I was criticizing the pretense "no overhead garbage collector" from Azul.

about a week ago
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Linux Needs Resource Management For Complex Workloads

Lisias Re:This obsession with everything in RAM needs to (161 comments)

And yes, a garbage collector with zero overhead. Who would have thought? Well, pretty much anyone in the know, I guess.

MARK / RELEASE from the Pascal days used to work pretty well - this is the less overhead "garbage collector" possible.

It's impossible to have a Garbage Collector without some kind of overhead - all you can do is try to move the overhead to a place where it's not noticed.

There's no such thing as Free Lunch.

about two weeks ago
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Linux Needs Resource Management For Complex Workloads

Lisias Re:This obsession with everything in RAM needs to (161 comments)

I know you're afraid of the garbage collector, but it won't bite. I promise.

Yes, it will. It's not common, but it happens - and when it happens, it's nasty. Pretty nasty.

But not so nasty as micromanaging the memory by myself, so I keep licking my wounds and moving on with it.

(but sometimes would be nice to have fine control on it)

about two weeks ago
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The Lovelace Test Is Better Than the Turing Test At Detecting AI

Lisias Re:Most humans couldn't pass that test (285 comments)

People usually make the big mistake of taking himselfs as measure for everybody else.

Turing was a hell of a smart guy - I bet my mouse that he had this mindset ("everybody is more or less smart as me") when he designed that Test.

By the way, there's a joke around here that states: The sum of all Q.I. in the Earth is a constant - and the population is growing...

There's more instructed people nowadays, but smart? I'm afraid that not - Turing didn't live to see what we are nowadays.

about three weeks ago
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Russia Wants To Replace US Computer Chips With Local Processors

Lisias Again? (340 comments)

There was a reason USSR give up making processors in the 80's.

I can't see what could be possibly changed from that time - au contraire, the status quo beame even more hardened.

about a month ago
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Google To Close Its American Moto X Factory

Lisias Re:As someone who... (154 comments)

How does making the handsets in China reduce the cost to ship them to American customers? Seriously

Easy. You americans charge 20 times more for the shipping than the chinese.

Simple like that.

Last year I got some arduino spare parts costing about 40USD. I got free shipping, It took 3 months to get delivered at my home, but the shipping was free.

The same parts on eBay would cost me 45, 47 USD. Not bad. But the cheapest shipping would cost me another 50USD.

Do your math.

about 2 months ago
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Quad Lasers Deliver Fast, Earth-Based Internet To the Moon

Lisias Re:ping rate (131 comments)

gaming's going to suck

On the other hand, PR0N is going to rock! :-)

about 2 months ago
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Severe Vulnerability At eBay's Website

Lisias Re:Sounds like the eBay I knew... (60 comments)

Hmm? Brazil and Argentina have "mercado livre" for years, and AFAICT they're ebay with a different name (same platform).

Yep. Until not that much time ago, M.L. was a fine place to buy and sell. But from some years to now, things changed - user's support is near zero, you just can't make a complaint online. Too much rules are relaxed, what favors bad faith sellers.

EBay was a partner until recently, but what we heard is that eBay got fed with all that and decided to do business directly around here. What is one of the best noticies we got in years : we *need* competition around here.

I found something here to supports what I'm saying. Google translating here.

about 2 months ago
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The Technical Difficulty In Porting a PS3 Game To the PS4

Lisias Re:PS4 hardware (152 comments)

I stand corrected.

Please read "Because IBM didn't improve the PowerPC processor line enough to meet Sony's new requirements since them" instead.

about 2 months ago
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Severe Vulnerability At eBay's Website

Lisias Re:Sounds like the eBay I knew... (60 comments)

There's nothing so bad that could not be worse.

eBay is going to Brazil. Guess what? I'm happy.

Our currently "best" auction site, Mercado Livre, is so broke that sometimes I speculate if these guys are operating in bad faith (I know for sure that they would had be sued if they operated in USA).

about 2 months ago
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The Technical Difficulty In Porting a PS3 Game To the PS4

Lisias Re:PS4 hardware (152 comments)

More people are still buying PS3s than 360s worldwide. The 360 has only dominated (and is still selling relatively well) in the US and UK.

Oh, you mean the countries where people buy the most [legitimately licensed] game consoles? Please, do go on.

Yes, exactly that countries. Now, keep in your mind that only a tiny fraction of PS3 are currently "jailfree", as only the first models (the "Fat PS/3") run the firmware version that allowed the hack, and only a even smaller fraction of that fraction was never updated (downgrading the firmware is risky - usually bricks the console).

On the other hand, the hacked XBox "installed based" is huge. Every single friend of mine that are XBox users has a hacked console to play pirated games. About half has also an original XBox to play Network.

The other half that are PS3 owners, I'm not aware of a single one that has a pirate capable PS3. We all buy our games (most of the time, second hand) or download them (legally) from PSN.

And Yes, we're doing this on a country where pirating goes unchecked for decades (no, I'm not chinese! =D).

That's something to think on.

about 2 months ago
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The Technical Difficulty In Porting a PS3 Game To the PS4

Lisias Re:double (triple?) replying (152 comments)

As a mater of fact, your (almost desperate) counter-arguments to every single and minimal "goofy" of mine just demonstrates how difficult are being to you to simply present some facts that proves me wrong.

Let me tell you something: inside your Intel chip, there're not only three "integer coprocessor", but a entire array of ALUs.

From Pentium and ahead (if I remember correctly), Intel decided to o "RISC" style and invested a lot of efforts on pipelining the thing, in order to achieve a better instruction per cycle ratio. By the nature of pipelining make it hard to fully use all internal "coprocessors", they discovered that unless the programmer do very specialized techniques while programming, 20% (at the very best) of the chip stays unused all the time. A pretty waste.

They managed to overcome the industry incapacity to get rid of ancient programming habits (please read it right: I said ancient, not wrong) with hiperthreading. They just sacked another pipelined Control Unit inside the core, carefully crafter to use the chips parts that the first pipeline leaves unused. Each Control Unit appears to the Operating System as a CPU core (but make no mistake: it's just ONE core, faking it is two).

There's no problem with this solution, but one (sane - or at least non stupid) person can not just tag "stupid" anything that decides to be a better idea avoiding all that "faking two CPUs" thing, saving the money or the chip space, leaving space to yet more features.

The ordinary Intel chip nowadays has a lot more cores than the CELL. But you don't see it, because you choose to learn programming on a eco-system that uses customer money to make things easier to you. There's no problem with it, it's a valid way of doing things.

But what's wrong is just calling everybody that thinks that it's better to make developer's life a bit more complicated in order to save money on the long run. Doing this is not just wrong, its plain stupid (or bad faith).

Games have a different development cycle : the game maker (software) spends a lot, but a really lot of money building the game to one platform, but when the thing is done, the thing is done. For the rest of the product's lifecycle, development is at minimum. It's not a continuous development cycle that we're used on PCs - the hardware does not change! Again, when the thing is done, it's done.

It totally makes sense on saving money on hardware, what is hard and costly to "duplicate" (and the manufacture sinks money during all the product's lifecycle), even if by doing it, you make the developer's life harder as their product has a shorter development lifecycle, but it's easier to "duplicate" and have the same lifespan as the hardware.

Developers are not the core business in this industry. We're a important part of the business, but that's it.

(grow up!)

about 2 months ago
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Did Mozilla Have No Choice But To Add DRM To Firefox?

Lisias Re:I think... (406 comments)

Which parts of the arguments are "almost" illegal?

Here, let me google it for you.

about 2 months ago
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The Technical Difficulty In Porting a PS3 Game To the PS4

Lisias Re:PS4 hardware (152 comments)

Videogame maker? You mean console vendor? Or what?

Console maker, I'm sorry. I misused the words.

about 2 months ago
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The Technical Difficulty In Porting a PS3 Game To the PS4

Lisias Re:PS4 hardware (152 comments)

Car analogy time: it's like giving a bunch of drivers who don't know how to use manual transmissions a manual car. Yes, manual transmission is faster than automatic, but if your drivers don't know how to use it properly, it's always going to end up being slower in practice.

No if *you* hire the good drivers, and use them to take a edge on your competitors - what's pretty feasible when you get the market leadership (of near it).

Anyway,I never stated that CELL or Emotion Engine were *easier*, I stated that they were *faster* at their time.

Yes, PlayStation One got the developer's heart because Sony did a pretty good job on make the developer's life easier. But then Sony throwed this through the window on PS/2, an excellent but totally awkward machine at that time: fast as hell, but not compatible with nothing in this God's land.

Things didn't get prettier on PS3.

Why? Because this simply wasn't a concern anymore. Exactly like nowadays.

(I like it? I don't like it? It doesn't matter, what I like it's irrelevant!)

about 2 months ago
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Data Mining Shows How Down-Voting Leads To Vicious Circle of Negative Feedback

Lisias Re:BS (293 comments)

Hi. Just to mention : they hit me again! =D

about 2 months ago
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Did Mozilla Have No Choice But To Add DRM To Firefox?

Lisias Re: I think... (406 comments)

Agreed. Here is an old joke ..

"A liberal will interpret the constitution, a conservative will quote it!"

Excellent quote. O would mod you up, if I wasn't a commenter on this submision! :-)

about 2 months ago
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Did Mozilla Have No Choice But To Add DRM To Firefox?

Lisias I think... (406 comments)

I think that a better option coulbe be DO NOT DRIVE AWAY TECHNICALLY COMPETENT STAFF using ludicrous, infamous (and almost illegal) arguments.

But hey, it's just my two cents.

about 2 months ago
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The Technical Difficulty In Porting a PS3 Game To the PS4

Lisias Re:PS4 hardware (152 comments)

No, it was not. =D

You make a very poor judgment of the last decade developers. And somewhat lack of history knowledge.

What did PS3 a good start was the huge Microsoft failure on delivering a faithfully working hardware (that Red Ring of Death issue, remember?). Any other company would had fold, but Microsoft had (and still has) a huge cash cow to milk (Microsoft Office), and that was the sorely reason XBox didn't fold at that time.

But Microsoft people aren't stupid (for the most part, at least), and XBox was fixed. And they did a really big thing: the Microsoft Live. This really changed the game, and Sony got a really nasty bite in the ass. Sony took too much time to get the PSN up to the Live level (still doing it by the way).

By the way, The XBox 360 is also a PowerPC machine - the same core used on sony's PS3. And the NIntendo Wii (and also the WIi-U). And also on GameCube, Apple's failed Pippin and a lot of others dead on arrived videgames. There's absolutely nothing weird on PowerPC being used on videogames. Sony made things complicated for developers by tacking 6 specialized coprocessors inside its chip - what, for programmers used to have just one (MMX, 3DNow!, etc), was clearly a new level of computing. However, parallel computing appears to be here to stay (look at the ARM chips) - and having EIGHT general purposes CPUs competing for the same resources is not for the faint of the heart (Microsoft took years to learn, look at that crappy piece os software called Microsoft Windows). The complexity is still there - we just shifted it to another side.

Videogame Makers choose their hardware based on price, power and next years availability. Power PC had won the maker's heart in the past, but by some reasons IBM choose to abandon this race, giving the PowerPc a low priority on to research and development. AMD, on the other hand, spend a lot of efforts and money by upscaling their CPU to the current levels. The decision on using AMD's x64 over the previous PowerPC one was taken based on CURRENT chip power, CURRENT chip pricing and guarantees for chip supply for the product's lifetime.

The current new chip is easier to program? Beneficial side effect, nothing more. Not a single videogame maker will sacrifice any of the previous requirements to make the developer's life easier. We are not in the 90's anymore, there's a lot more people with programming skills nowadays, and a lot of them will be willing to deal with any extra complexity to take your job from you. (sad but true)

about 2 months ago

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Interesting...

Lisias Lisias writes  |  about 4 months ago

Interesting how things can change.

We, brazilians, have a harsh view from our managers. I wonder if our best ones didn't did as our best technicians - fled from the country to pursue a better future.

http://news.slashdot.org/comments.pl?sid=4905665&cid=46503045

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A good post

Lisias Lisias writes  |  about 10 months ago

is always a good post.

This is just to "tag" a really good one (at least, for me). :-)

http://slashdot.org/comments.pl?sid=4327587&cid=45107247

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Thoughs about "Mod Trolling" (or not!)

Lisias Lisias writes  |  about a year and a half ago

I think I figured out why I was seeing what appeared to be "Mod Trolling" on my posts.

Due my good Karma, my posts are being visualized with a default +2 score points, as someone else had modded me +1 (underrated).

However, I must confess that I know that half my posts doesn't deserve a +1 mod (being it real or just karma biased), and I did noticed that a good part of my modded down posts was being modded as "-1 Overrated".

Well, if I even think that that posts didn't deserve a +2 score, what can be said from some random moderator? :-)

So, the Mod Trolling problem doesn't appears to be so bad as I thought. These "-1 Overrated" mods I was getting are due some mediocre posts being listed with a "+1 Excellent Karma" being added automatically,

(Ok, perhaps this should be obvious and ululant to me - - but I thought a good idea to share anyway)

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Mod Trolling sucks. Big time.

Lisias Lisias writes  |  about a year and a half ago

I'm being repetitive, I know. But the problem is repetitive.

Mod trolling sucks. I wish enough people would agree with me in order to something productive could be worked out to minimize this problem.

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How to ask for metamoderation?

Lisias Lisias writes  |  more than 2 years ago

Is there any way I can suggest a post to be metamoderated?

Sometimes the moderation is just plain wrong - and I really would like to tag it to be further evaluated in order to, perhaps, remove the moderation rights from the guy if he/she is too much prone to do that sort of ideological patrolling.

I'm not asking to know who did it - this would lead to a lot of abusive actions against the good moderators. I just want to flag it to be reviewed by the metamoderators.

Suggestions?

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This guy is my hero

Lisias Lisias writes  |  more than 2 years ago

I just got into this post, and man... This guy is my hero - I would said it directly, but I used some mod points on the discussion.

I used to work 80 to 90 hours a week - and speaking frankly, it's the kind of thing that you should do only if you have no other choice. I have kids to raise, and I live on a rich-wannabe country where people thinks that scamming employees and customers is a good entrepreneurial tactic, so I do not have the option to always say no to these things.

But sometimes I can such a thing, and in these times I do.

Working is for living, not vice-versa.

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Mod Points

Lisias Lisias writes  |  more than 2 years ago

Hey!

I got 15 (YES, FIFTEEN) moderation points today.

Christmas gift? Greek gift? =P

Or just a bug?

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My first First Post

Lisias Lisias writes  |  more than 2 years ago

Wow!

After 10 years, I finally managed to do it. I GOT A FIRST POST.

Better of all, it's not a flamebait, troll or offtopic. :-)

(but someone found it #overrated! =P)

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