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  • ddtlm
    Oct 12, 06:27 PM
    nixd2001:

    Those score I posted earlier were from the integer version of the loop that I was ripping on as meaningless. The float version is not quite so meaningless because you can't just unroll the thing, because floats get different results if the ops are even done in different orders. For the benefit of people who may not know it, with floating point numbers often 4x != x + x + x.

    Anyway, my P3 Xeon 700 sports this compiler:

    gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-112)

    Results for the exact loop posted by PCUser are:

    gcc -O driver.c -o exe && time ./exe
    38.858

    gcc -O2 -funroll-loops driver.c -o exe && time ./exe
    38.818

    On a side note, I also found gcc on my Mac after relogging into the terminal so that things were added to the path. Funny that the finder's find cannot see tools like gcc. I'll get results for that posted soon.





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  • edifyingGerbil
    Apr 24, 12:09 PM
    Great, let's have a race to the bottom to see which faith is the more bigoted.

    If you're being burnt at the stake, it doesn't make much difference whether that's because of a story someone made up 2000 years ago, or a story a priest made up today. Faith is still the excuse, and the result is the same.

    I'm not trying to further some Christian agenda or proselytise. I'm saying these things because I would rather support Christianity/Judaism/Atheism/whatever than Islam.

    These days you'd be hard pressed to find someone being charged in a Western democracy for blasphemy but it's an almost every day occurrence in the Muslim world. The only time it happens in the West is when someone insults Islam, then it's classed as hate speech.





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  • Multimedia
    Jul 13, 06:10 AM
    I've been wondering about this too. Surely they have the source code (or most of it) written in a high level language, right? If I'm not totally mistaken, there shouldn't be that much more work involved than a re-compilation for x86. Even if some filters or other stuff are hand coded in assembler, they already have that code in x86-assembler in the Windows version.Adobe made a strategic decision to go Universal with the CS3 Suite next year and meanwhile not to divert work to Universalize the CS2 Suite. If you need Adobe stuff all the time, just get a G5 Quad and you will be happy as a clam. It's still going to be the second fastest Mac after Mac Pros are out. :)





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  • Peace
    Sep 12, 06:19 PM
    Hi All, Hi Al!

    I'm feeling a bit thick maybe on this but how does iTV differ from EyeHome?

    http://www.elgato.com/index.php?file=products_eyehome:confused:

    The Eye Home does not have Component and HDMI inputs.

    Wireless isn't built in.

    It's not an Apple product that will work better with Front Row than Eye Home will.





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  • spicyapple
    Sep 25, 11:36 PM
    Did anyone listen to TWiT? Someone mentioned 80 cores. Clovertown, your days are numbered. ;)





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  • SimD
    Apr 12, 10:45 PM
    This is not really true. You need to know the software to make it do what you want to do. You don't need to be an expert certified user, but you need to know your way around.

    Of course you do. I agree completely. Obviously the poster is exaggerating. I assume he means that the editors he speaks of aren't techno geeks like a lot of us here on MacRumors.

    I seem to have misspoken. I meant they don't need to know the acute technical details of their software.





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  • stcanard
    Mar 18, 10:19 AM
    Anyway, I've never been one to agree with the Windows people that argue the security-by-obscurity for why Mac OS X is not hacked to bits like Windows, but it would seem that this adds aome serious fire to their arguement. Here in music where Apple is the most popular and widely used, they are getting hacked (semi-successfully) more often than their WMA counterpart.

    Yes and no. True iTunes is getting hacked more than WMA because of its popularity, but this has no bearing on the relative security of the software or operating systems.

    The problem is that DRM like this is flawed by definition. In order for me to be able to listen to the track, my computer has to have the capability to decode and play it. Therefore there has to be a hole that can be exploited to get that information. Jon is very good at finding that hole that has to exist.

    The system is guaranteed to be breakable as long as you look hard enough.

    The same is not true for operating systems. The system does not have to be breakable, so now you can make an assessment based on the architecture.





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  • cocky jeremy
    May 16, 02:53 PM
    I used to never get dropped calls on AT&T and lastnight alone i had 2-4. To top that off, i called my GF and it was ringing (at least on my end) and her phone never even rang. Called both of my parents, same thing. They were 5 feet away from me at the time. WTF. :eek:





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  • GGJstudios
    Apr 13, 03:16 PM
    I'm sure this has been mentioned.

    Connecting other hard drives. I'm only able to read from most (windows) drives.
    FAT32 (File Allocation Table)





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  • valkraider
    Apr 28, 11:25 AM
    Actually, I'm note sure about the US, But I would fully agree with stopping Schools etc from buying Mac's for use in education.

    The point of a school is to teach/educate/prepare children/students for the skills they are going to need when they leave and enter into the real world, the marketplace for jobs.

    Like it or not, PC's are vastly more in use in typical businesses these days.
    You do now want a vast amount of people leaving school to start their new jobs, being confronted by PC's and say, oh, we're never used PC's we only used Macs at college.


    On my Mac I use Microsoft office: Word, PowerPoint, and Excel. They differ slightly from the Windows versions that I have at the office.

    90% of office use of PCs is Microsoft office, or web systems and email/calendar.

    There are a few things, certainly, you just can't learn on a Mac. Like Visio or Project for example. But there are similar products for the Mac.

    A much more important skill is teaching kids how to use computers no matter what platform they are. Having the ability to switch platorms is incredibly valuable.

    The school just requires PCs because they heard that PCs and Macs are not compatible. It's not true, I use both every day in a regular office environment.


    --
    "Officer, I know I was going faster than 55mph, but I wasn't going to be on the road an hour." -Steven Wright

    Posted from my iPhone using the "Tapatalk" app.





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  • javajedi
    Oct 10, 10:28 PM
    Originally posted by ddtlm
    javajedi:

    Yes, the JVM is the deciding factor here. If the Java takes that damn long on a G4 but goes fast on a P4, can can rest assured that the JVM Apple is distributing sucks compared to whatever one the x86 machines are using.

    There is no way in heck that the performance delta can be so large without a large difference in quality of JVM. G4's may be slower, but they are not as slow as those number indicate.

    Like I've been saying, when you start to see 5x leads by the PCs you need to start asking questions about the fairness of the benchmark. The G4 is better than 1/5 the speed. There are very few things were a P4 can get better performance per clock than a G4.

    BTW:
    Your G3 results as bizzarre as well, because of the contrast between them and the G4 results. Do not take it as proof one way or the other of the G3 or other IBM chips being superior to the G4. What we have here are raw numbers that defy a simple explanations. We should ask why these numbers are popping up, rather than running off with them as if they were uttered by a great voice in the sky or somthing.

    I should note that the 90 second and 72 second results I just recently posted are from my cocoa implementation, not java.. so the jvm is out of the picture now on the mac.



    Do not take it as proof one way or the other of the G3 or other IBM chips being superior to the G4.

    Don't worry, I don't make assumptions like that. And no, I don�t think this does defy simple explanations. I will say that, what we are starting to see here is evidence that the scalar units (integer and fpu) in the IBM 750FX (G3) are more efficient than those in the Motorola G4.

    If this is true, then my program hit it right on the nail. Also if this is true, it means there exist theoretical situations when using non altivec code that it would be faster on one of these newer G3 chips.


    Also what alex said about how tedious it was to make altivec code, I would agree there is some truth to this. When you vectorize code (either for the P4 or G4), if you don't watch your p's and q's you can actually slow *down* your code. Just because you use the nice and special vector registers on these G4 and Pentium 4 processors does not mean you gain 5 times the speed. You literally have to take your methods back to the drawing board. You will only get peak performance out of pipelined, fully vectorized code.

    None the less, scalar operations on both G3/G4 are miserable compared to x86. The JVM is no longer the deciding factor in the performance delta. It's out of the equation on the Mac since the benchmark is now a 100% native cocoa application with c code and no longer java. Mean while on the x86, the benchmark remains java.

    70-ish seconds navtive on a G3
    90-ish seconds on a native on a G4
    5.9-6-ish seconds running under JVM 1.4.1 on a P4





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  • GGJstudios
    May 3, 08:09 PM
    I just waded through this god-awful thread and almost every single post that said anything positive about Windows in any way, shape or form (truth or nonsense alike) got zapped with negative votes.
    You're making a huge assumption that the people who vote on posts are the same people who are posting in a thread. The post voting feature is new and there is no way to know who is using it. People who read the thread can vote, even if they don't post. Personally, I think voting on posts is a waste of time, since you have no idea who votes or why. There have been 240+ posts in this thread, and over 21,900 views, any number of which could be voting on posts. You do the math.




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  • Sounds Good
    Apr 6, 02:26 PM
    Oh, and for the person who made the "troll" post... seriously??? The OP put "for switchers only" because he wants to hear from people who have actually made the decision to switch. He wants to learn from their experiences as opposed to just getting bashed by Apple fanboys who'll belittle his question and not provide any genuine help.
    Bingo. This is EXACTLY right.

    Anyway...

    I spent some time at an Apple store today. I messed around with the Macbook Air machines mostly. It's gonna take a few visits to have a better idea of things.

    Frankly I'm a little bummed, since I was quite tempted to get a Mac -- pretty soon, in fact. Now I'm really not so sure. I (personally) might be better off with Windows 7. Not sure.

    One thing I learned while at the Apple store: I'm pretty sure I'll be getting an iPad 2. :)





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  • samcraig
    Mar 18, 10:53 AM
    They really aren't that put together on this, as anyone who has spoken to "customer service" can attest.

    You realize there's a difference between those that "man" the CSR phones and the people responsible for the IT infrastructure, billing, etc, right?

    Just because the person that answers your call doesn't know what is going on behind the scenes doesn't mean ATT isn't FULLY aware of who is and who is not tethering or what websites you are viewing, etc.





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  • nefan65
    May 5, 11:35 AM
    Ok...so here's the deal...

    I've been on AT&T for over a year now, using an iPhone 3g. No dropped calls at all, 5 bars everywhere in my area, and full 3G coverage.

    Verizon has 0 bars in my area, and their phones are crap...

    Way to go AT&T!

    WTF? Why do people buy phones without knowing if they work in their areas first? If I went by what people say on these boards, I'd have bought a Verizon phone that wouldn't work in my area, and on a phone that's crap....

    STOP MAKING PURCHASING DECISIONS BASED ON OTHER PEOPLES OPINIONS!





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  • Liquorpuki
    Mar 13, 08:11 PM
    did you actually read my post? Centralized solar would just be one part.

    Yeah I did. Everything you mentioned except tidal is intermittent, cannot be used for base load, and is subject to the grid energy storage problem that I mentioned and you said an 8 hour "battery" will solve (which it won't). Tidal can be used for base load but has a crappy generating capacity, no way could it cover the base load for the entire US.

    So basically your plan would cause a lot of blackouts and upset a lot of people.





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  • Hunabku
    Apr 20, 06:28 PM
    I guess if you want a computer that is cheap and weak, you can get a Windows computer.

    Cheap (maybe) - Weak (no) unless you're taking reliability into account.





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  • h'biki
    Mar 20, 07:09 PM
    It is wrong? How so? If I burn a track for my wedding video, yes, I'm technically breakeing the law, but there is nothing immoral about doing that. No one is losing out on any money. No one is being hurt. He isn't stealing anything. He's breaking a copyright law that makes no sense in that case.

    But what if I got hold of that wedding video and decided to, I dunno, turn it into a music video for my own music... and that music video got onto MTV? No one is losing out on any money. No one is being hurt. I'm not stealing. I'm -merely- infringing copyright.





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  • d-fi
    Sep 12, 06:33 PM
    I think a lot of people are overlooking what "iTV" does.

    It's not a standalone component device that connects to your computer. It's an extension OF your computer.

    Ughh, I really hope that Apple upates this product before releasing it for sale.
    Come one Apple, what about the:
    - TV recording

    well you got me there it would be nice if it was a tivo as well but thats not really in apples interest

    - DVD player

    My mac has a DVD player so that means my tv would as well (and 99% of people already have a component DVD player for their tv) not something i want to pay for if i already have one

    - Built In Storage (Hard Drive)

    My mac has lots of Hard Drive space and i can add more if i need it. With iTV i can send anything to the TV that quicktime can play (i assume). Again since my computer already has lots of storage i don't want to pay for more and if i did need more space i would rather add space to my computer then to a set top box.

    - Input for digital cable

    well again it would be nice if it was a set top box as well but thats not really in apples interest so probably not going to happen.

    Some analogies:
    - It's like an wireless XBOX 360, except it doesn't play games or DVD's.
    - It's like a networked DVD player, without the DVD player.

    well I'm guessing that the iTV would have a remote (otherwise it will suck) so for DVD's if the DVD is in your mac press play on remote and it goes, that easy. maybe a slight annoyance if your computer is in another room but not hard. But i must point out again that 99% of people have a DVD player, the goal of iTV is to move away from conventional media.

    This is slightly off topic but i would much rather pay for a (blue ray/HD-DVD) burner for my computer then a component unit for my tv as i would get much more use out of my (blue ray/HD-DVD) burner with "iTV" then i would ever get out of a component unit plus save me a few $$ by not having to buy both types of units

    I'd rather spend $300 on almost ANY OTHER electronics product.

    What a disappointment... I guess Apple is just trying to stave off the competition from the media capabilities of Windows Media Center and XBOX.

    i guess were on different pages here but i think this unit is an excellent extension of my computer. i will admit i don't really care about recording aspect of the unit because i just download programs if i miss them. Thats the main reason why i would love to stream them to my tv with out moving my computer so i can enjoy all my programs in my living room.

    I'm very interested in this unit and i KNOW I'm not alone

    (BTW timswim78 just using your post to hi-light my point of view nothing personal :) )





    takao
    Mar 15, 05:39 PM
    i can't find a good source for timed updates.
    all things seem to go together and i can't really tell what's new and what's not.

    one thing seemingly emerging as really problematic is the spent fuel pools.
    I can't understand how it is possible that the design puts it in the worst possible place (in terms of management during a crisis) and without ANY containment protection.
    it's crazy.

    puma, can explain the rationale?

    afaik it's more designed as a holding pool for fuel rods to be put in and those just recently taken out

    the problem seems to be that reactor 4 has been shut off for maintance works, thus many of the normal fuel rods seem to have been taken out of the reactor and put into the basin ... but that is only as far as i heard

    information flow has been rather limited because there was night in japan so i suspect the next hours we will get more informations/press releases again

    edit: tepco is reporting readings of 300-400 mSv in the broken structure of reactor 4 which makes it difficult to control the fire and restore the water level in the pool





    Glass!
    May 2, 10:49 AM
    Using Google Images as an attack vector has become very popular recently, it's a problem on Windows too (http://www.reddit.com/r/techsupport/comments/gx2i8/google_images_becoming_a_hub_of_virus_activity/).

    They're just using the age-old "Your computer has a virus" scareware trick that has been around on Windows for years.

    Safari treating zips as safe is very broken, but the user still has to manually open the file and install it, and enter their credit card details... Are the people replying to the threads in the OP really that stupid?



    That's fine, but that's not what most fanboys espouse. "THERE ARE NO VIRUSES FOR OS X!!!" is not the same as "There is no malware for OS X," which confuses the uninformed user.

    There is malware for every platform -- from Windows to Haiku to Minix, therefore qualifying the difference between malware and viruses is neccessary. For example, this malware for most Unix platforms that will delete your homefolder, you just have to copy it into a text file, give it executable permissions and run it:

    #!/bin/sh
    rm -rf $HOME/

    It's malware, but it sure isn't a virus.





    OllyW
    Apr 28, 07:34 AM
    Agree. Too bad the iMac never took off in the enterprise sector. I remember when I was going to the university in the 90's I saw plenty of macs all around campus. Now the times I've gone all I see are Dell's, and HP's.

    As good as it is, the iMac is too expensive to compete in that market.





    linknprk
    Mar 18, 02:52 AM
    So if you're sticking at 4.1.0 and they aren't monitoring, then they should be monitoring 3.x even less, no?

    All the more reason for me to stick with 3.1.3 on my 3G.

    BL.

    um... did you guys misread the article?
    The article is proposing that they might be able to suspect unsupported tethering for people NOT using 4.3 because hotspot wasn't made available until 4.3

    So if you stick with 4.1 or 3.1.3 or anything earlier than 4.3 (while using data in a way that looks like tethering)... you will stand out.

    Thats how I interpreted the article.





    CuttyShark
    Apr 12, 11:23 PM
    A bad workman always blames his tools. ;)


    Cheers!!