javajedi
Oct 12, 07:59 PM
Originally posted by ddtlm
Anyway I've had my fun here for now. I think it is settled that the G4 does poorly at this particular float test. I've done everything I can think of and gone though all sorts of variations of the loop trying to increase the IPC but I could never make significant headway on either the PC or the Mac.
That said, this test is essentialy a test where we do 400000000 double precision square roots which we don't even store and nothing else. There are no memory access, only very predictable branches. I have radically changed the loop and compiler flags and essentially nothing besides the sqrt() makes any difference.
I do not regard this test as important in the overall picture. It does not illustrate anything important to anyone, unless someone sits around doing square roots all day.
I might also add that designing a meaningful benchmark is very hard. I think SPEC is about as good as it gets, and yes the G4 looses in floats there too. :)
I'm in the process of figuring out vMathLib. I'm a Java guy, so all this Altivec stuff looks totally foreign to me :(
Never the less, once I get it working, I'll share the results with you folks.
Also: If anyone here wants me to try something, G3 vs G4, or whatever, aside from the square root and integer mult, let me know. I'd actually like to make full featured cocoa app full of test suites.
Anyway I've had my fun here for now. I think it is settled that the G4 does poorly at this particular float test. I've done everything I can think of and gone though all sorts of variations of the loop trying to increase the IPC but I could never make significant headway on either the PC or the Mac.
That said, this test is essentialy a test where we do 400000000 double precision square roots which we don't even store and nothing else. There are no memory access, only very predictable branches. I have radically changed the loop and compiler flags and essentially nothing besides the sqrt() makes any difference.
I do not regard this test as important in the overall picture. It does not illustrate anything important to anyone, unless someone sits around doing square roots all day.
I might also add that designing a meaningful benchmark is very hard. I think SPEC is about as good as it gets, and yes the G4 looses in floats there too. :)
I'm in the process of figuring out vMathLib. I'm a Java guy, so all this Altivec stuff looks totally foreign to me :(
Never the less, once I get it working, I'll share the results with you folks.
Also: If anyone here wants me to try something, G3 vs G4, or whatever, aside from the square root and integer mult, let me know. I'd actually like to make full featured cocoa app full of test suites.
Speedy2
Oct 7, 05:28 PM
Yes, I have. Several times. Things have changed, but the base premise of the article still applies - Microsoft Got Lucky - there is no way to suggest that Apple can pull that off in this day in age when the world depends too much on Microsoft.
Well I think the original argument was not about Apple copying MSs success. I think we all agree that indeed MS got extremely lucky (but also showed a lot of skill and ruthlessness in exploiting that luck). However, the original argument was more about whether Mac OS would enjoy a higher market share if it were open to PCs. It probably would if Apple supported only "certified systems" to avoid driver issues. In any case, it is extremly unlikely that this is going to happen and therefore pure, rather meaningless speculation. :)
Well I think the original argument was not about Apple copying MSs success. I think we all agree that indeed MS got extremely lucky (but also showed a lot of skill and ruthlessness in exploiting that luck). However, the original argument was more about whether Mac OS would enjoy a higher market share if it were open to PCs. It probably would if Apple supported only "certified systems" to avoid driver issues. In any case, it is extremly unlikely that this is going to happen and therefore pure, rather meaningless speculation. :)
iphones4evry1
May 6, 01:32 AM
I have definitely noticed an increase over the past few months. I used to experience a dropped call about once every two months, and now it's about twice per week.
AT&T really needs to work on this problem. It seems to be getting worse.
AT&T really needs to work on this problem. It seems to be getting worse.
Howdr
Mar 18, 09:33 AM
LOL and you believe that would hold up in court against the significance of the word "Unlimited"?
You are Flat Out Wrong. AT&T would hold up their fine print. The prosecution would wave it away, and so would the judge. It happens every day, and only most uninformed of legal amateurs are unaware of this.
Yet Apple showed the Fine print to the US Gov and they got slapped in the face. Jailbreaking is OK and legal!
As I said : A contract does not make it legal, its just an untested agreement that may or may not stand up to court ruling.
With Jailbreaking there were those using the same arguments before.
I need to go good conversation
I think extra charge for tethering is not ok and think at&t is wrong. no matter the contract.
GL everyone
You are Flat Out Wrong. AT&T would hold up their fine print. The prosecution would wave it away, and so would the judge. It happens every day, and only most uninformed of legal amateurs are unaware of this.
Yet Apple showed the Fine print to the US Gov and they got slapped in the face. Jailbreaking is OK and legal!
As I said : A contract does not make it legal, its just an untested agreement that may or may not stand up to court ruling.
With Jailbreaking there were those using the same arguments before.
I need to go good conversation
I think extra charge for tethering is not ok and think at&t is wrong. no matter the contract.
GL everyone
HecubusPro
Sep 12, 06:52 PM
I don't think the box will have local storage per-se. - it isn't advertised (yet) as a DVR. It's more like the Elgato EyeHome as it streams content stored on your computer. So the HD issue will be on the computer.
That's why I put the "EDIT" in my above post. Thanks. :)
And I think it's a brilliant idea allowing it to stream from your computer. Looks like I'll be getting an external terabyte drive. :D
That's why I put the "EDIT" in my above post. Thanks. :)
And I think it's a brilliant idea allowing it to stream from your computer. Looks like I'll be getting an external terabyte drive. :D
avkills
Sep 26, 11:17 AM
I bet I could peg all 8 cores doing a 3D render...easily.
Bring them I say. This may make me hold off on my render farm idea.
-mark
Bring them I say. This may make me hold off on my render farm idea.
-mark
Surely
Apr 15, 09:08 AM
Nice to see a little corporate social responsibility coming from all of those companies.
:)
:)
springerj
Apr 20, 07:58 PM
Ah yes, the ever present "Android users must be smarter because they can customize their phones more" argument. It's still as irritating and off-base as it always was. :rolleyes:
It's really cool when you over-clock it and put in a terabyte drive!!! Real phone users can do that!
It's really cool when you over-clock it and put in a terabyte drive!!! Real phone users can do that!
Roy
Oct 6, 07:16 PM
2.66GHz (or 3GHz? maybe?) Cloverton Mac Pro for me... :D Hopefully they have a better graphics card offering than the current choices too.
And what would be your choice of graphic cards, considering that money doesn't grow on trees and price would be a factor?:)
And what would be your choice of graphic cards, considering that money doesn't grow on trees and price would be a factor?:)
Howdr
Mar 18, 09:33 AM
LOL and you believe that would hold up in court against the significance of the word "Unlimited"?
You are Flat Out Wrong. AT&T would hold up their fine print. The prosecution would wave it away, and so would the judge. It happens every day, and only most uninformed of legal amateurs are unaware of this.
Yet Apple showed the Fine print to the US Gov and they got slapped in the face. Jailbreaking is OK and legal!
As I said : A contract does not make it legal, its just an untested agreement that may or may not stand up to court ruling.
With Jailbreaking there were those using the same arguments before.
I need to go good conversation
I think extra charge for tethering is not ok and think at&t is wrong. no matter the contract.
GL everyone
You are Flat Out Wrong. AT&T would hold up their fine print. The prosecution would wave it away, and so would the judge. It happens every day, and only most uninformed of legal amateurs are unaware of this.
Yet Apple showed the Fine print to the US Gov and they got slapped in the face. Jailbreaking is OK and legal!
As I said : A contract does not make it legal, its just an untested agreement that may or may not stand up to court ruling.
With Jailbreaking there were those using the same arguments before.
I need to go good conversation
I think extra charge for tethering is not ok and think at&t is wrong. no matter the contract.
GL everyone
retroneo
Oct 8, 12:34 AM
All great things. People know the Android phones are made by google.
Over here, they brand the Samsung and HTC phones as Google powered with the Google logo, and don't mention Android.
Google has a comprehensive suite of services that no-one else can match as yet and I don't see Apple starting a 10 year effort to build up a similar suite of services or collection of information.
Apple IMO needs to maintain a good relationship with Google.
Bing/Microsoft Live and Yahoo are still not up to the standard of Google's services. MobileMe and iWork.com cover such a tiny fraction of Googles services and are still very incomplete for the areas they do cover.
Over here, they brand the Samsung and HTC phones as Google powered with the Google logo, and don't mention Android.
Google has a comprehensive suite of services that no-one else can match as yet and I don't see Apple starting a 10 year effort to build up a similar suite of services or collection of information.
Apple IMO needs to maintain a good relationship with Google.
Bing/Microsoft Live and Yahoo are still not up to the standard of Google's services. MobileMe and iWork.com cover such a tiny fraction of Googles services and are still very incomplete for the areas they do cover.
skunk
Apr 24, 11:36 AM
What part of
...
did you not compute?Oh, I computed it all right. You took one possibility out of four in order to make your argument appear stronger.
...
did you not compute?Oh, I computed it all right. You took one possibility out of four in order to make your argument appear stronger.
Chappers
Mar 13, 12:13 PM
When pumps failed to pump in water and the back up diesel powered generators failed they ran into problems.
If its important - have more than one backup. Risk assessment means always thinking of the worse case scenario. Pumping in sea water seems like a panic back up plan.
If its important - have more than one backup. Risk assessment means always thinking of the worse case scenario. Pumping in sea water seems like a panic back up plan.
saving107
Apr 15, 10:02 AM
Later on in life, most of them will probably have a beer with you and apologize.
If you want to really take on bullying, you need a totally different kind of campaign.
I got the impression that this campaign was not for Bully Awareness, but to let those who are getting bullied know that "It gets Better" and to guide you to the right place if you need someone to talk to before things get worse.
If you want to really take on bullying, you need a totally different kind of campaign.
I got the impression that this campaign was not for Bully Awareness, but to let those who are getting bullied know that "It gets Better" and to guide you to the right place if you need someone to talk to before things get worse.
Peace
Sep 20, 05:29 PM
I whole-heartedly agree.
I find it higly unlikely that there's a physical Hard Drive in the box that amounts to anything more than the UI and/or chache/buffer.
There's absolutely no need and would complicate the equation indefinitely, especially concerning digital rights.
Let's assume Iger is right, though, that there IS a HDD in the TelePort (or as you infidels call it, iTV), and that it can act as a stand-alone media access point. The question remains, how would you be able to get media onto it? Either 1) it comes with some sort of operating system which allowed you to connect it to iTS for content, or 2) it could be detected by a Mac or PC as a computer/HD over the network in order to drag-n-drop media.
Option 1, I think, is too far-fetched and risky. There would be substantial reliability issues using HDs that small to run an OS. We've all heard many nightmare-ish stories about people trying to bring their home computer to work, booting via iPod. Nonetheless, this seems like the most likely option for the use of a HDD.
Option 2, if this is the case, you already have a full-sized (i.e. reliable) HDD in your computer, which is connected to the internet, (i.e. iTS) for content. Why would you even need a HD in the box? Basically, Apple would be spending money on MicroDrives which don't have a reliable life-span and take up valuable space inside the box and for what? So that you can have an identical copy of a 1GB movie on both your Mac and your iTV box? As long as streaming works, there's no need. As long as streaming works, there's no need. As long as streaming works, there's no need!
PLUS, with iTunes DRM, you are limited to the number of copies you can make on devices you own. So an HD in the iTV would eat up one of those copies for any of the media you would choose to load onto it.
I do think, however, it would be likely to allow it to connect to .Mac, although streaming from the net is slower than from within an internal network... and on top of that, I don't know many people who store full-length, full-quality movies in their .Mac storage. In fact, I don't know any.
So, that's why I think there will be no HDD in the TelePort.
-Clive
That makes no sense at all..
In order to even view and/or listen to any media from another computer it needs a front row interface.That interface must be on the component itself.So in order for front row to run it must have some kind of O/S built into it.
I find it higly unlikely that there's a physical Hard Drive in the box that amounts to anything more than the UI and/or chache/buffer.
There's absolutely no need and would complicate the equation indefinitely, especially concerning digital rights.
Let's assume Iger is right, though, that there IS a HDD in the TelePort (or as you infidels call it, iTV), and that it can act as a stand-alone media access point. The question remains, how would you be able to get media onto it? Either 1) it comes with some sort of operating system which allowed you to connect it to iTS for content, or 2) it could be detected by a Mac or PC as a computer/HD over the network in order to drag-n-drop media.
Option 1, I think, is too far-fetched and risky. There would be substantial reliability issues using HDs that small to run an OS. We've all heard many nightmare-ish stories about people trying to bring their home computer to work, booting via iPod. Nonetheless, this seems like the most likely option for the use of a HDD.
Option 2, if this is the case, you already have a full-sized (i.e. reliable) HDD in your computer, which is connected to the internet, (i.e. iTS) for content. Why would you even need a HD in the box? Basically, Apple would be spending money on MicroDrives which don't have a reliable life-span and take up valuable space inside the box and for what? So that you can have an identical copy of a 1GB movie on both your Mac and your iTV box? As long as streaming works, there's no need. As long as streaming works, there's no need. As long as streaming works, there's no need!
PLUS, with iTunes DRM, you are limited to the number of copies you can make on devices you own. So an HD in the iTV would eat up one of those copies for any of the media you would choose to load onto it.
I do think, however, it would be likely to allow it to connect to .Mac, although streaming from the net is slower than from within an internal network... and on top of that, I don't know many people who store full-length, full-quality movies in their .Mac storage. In fact, I don't know any.
So, that's why I think there will be no HDD in the TelePort.
-Clive
That makes no sense at all..
In order to even view and/or listen to any media from another computer it needs a front row interface.That interface must be on the component itself.So in order for front row to run it must have some kind of O/S built into it.
Aduntu
Apr 23, 02:44 PM
Genesis 1:13 And the evening and the morning were the third day
That phrasing occurs throughout the creation chapter in Genesis. It looks more than slightly unambiguous WRT the meaning of "day".
Genesis 1:5: "And god began calling the light day, but the darkness he called night." In that same verse, "there came to be evening, and there came be morning, a first day." In this single verse alone, "day" is used to define two different lengths of time. You can't conclude by the use of the word "day" in Genesis 1 that those days were strictly 24-hour periods.
That phrasing occurs throughout the creation chapter in Genesis. It looks more than slightly unambiguous WRT the meaning of "day".
Genesis 1:5: "And god began calling the light day, but the darkness he called night." In that same verse, "there came to be evening, and there came be morning, a first day." In this single verse alone, "day" is used to define two different lengths of time. You can't conclude by the use of the word "day" in Genesis 1 that those days were strictly 24-hour periods.
AppleScruff1
Apr 28, 05:06 PM
I used a few Bulletin boards on old 300 baud modems, and also Prestel in the UK at 1200/75 speeds.
Don't know how many here are old enough and UK enough to remember using Prestel.
http://en.wikipedia.org/wiki/Prestel
And I thought the 14.4 modems were slow!
Don't know how many here are old enough and UK enough to remember using Prestel.
http://en.wikipedia.org/wiki/Prestel
And I thought the 14.4 modems were slow!
blahblah100
Apr 28, 02:57 PM
Ever heard of the Mac Mini???
The day Apple starts making Netbook quality computers I will start hating Apple.
How good is a cheap computer when it works like crap? I know many people who bought cheap PCs and laptops, and when I tried to used them, it was very annoying how slow these were.
Wait, is that the $700 computer that has a Core 2 Duo and no keyboard/mouse? :rolleyes:
The day Apple starts making Netbook quality computers I will start hating Apple.
How good is a cheap computer when it works like crap? I know many people who bought cheap PCs and laptops, and when I tried to used them, it was very annoying how slow these were.
Wait, is that the $700 computer that has a Core 2 Duo and no keyboard/mouse? :rolleyes:
Don't panic
Mar 15, 03:14 PM
Well, not that I hope he's right, but words like these from people of high up places don't give any comfort.
Europe's energy commissioner Guenther Oettinger dubs Japan's nuclear disaster an "apocalypse,"
http://news.yahoo.com/s/afp/20110315/wl_afp/japanquakelivereport
yes, but it's a figure of speech.
however bad a realistic worst case scenario would be, it will not require permanent evacuation of anything but a few tens of square miles, if that.
for example, this is not going to be as bad as chernobyl by any stretch of imagination, since the design and built of the plant is much safer, and this uses water for cooling instead of graphite which is itself flammable. And in chernobyl, only the immediate surroundings and another area where the fallout was massive are still off-limits.
In addition, this plant is on the seashore, so about half of the contamination will be dispersed into the ocean.
on a separate note, i can confirm takao's post that many japanese cities have built "tsunami walls" including one of the cities shown in one of the videos (where you can clearly see the water coing over a wall and waterfalling into the city. It might have been inefective in a tsunami this massive, but I am sure they can work on smaller ones. One of the California nuclear power plant on the coast also has a similar 25 feet wall.
I also agree with takao on the bizarre design of putting the spent rods in a pool on top of the reactor and without any containment other than the cooling water and the roof.
it seems clearly a design flaw which hopefully will be/has been taken care of in other designs and fixes
Europe's energy commissioner Guenther Oettinger dubs Japan's nuclear disaster an "apocalypse,"
http://news.yahoo.com/s/afp/20110315/wl_afp/japanquakelivereport
yes, but it's a figure of speech.
however bad a realistic worst case scenario would be, it will not require permanent evacuation of anything but a few tens of square miles, if that.
for example, this is not going to be as bad as chernobyl by any stretch of imagination, since the design and built of the plant is much safer, and this uses water for cooling instead of graphite which is itself flammable. And in chernobyl, only the immediate surroundings and another area where the fallout was massive are still off-limits.
In addition, this plant is on the seashore, so about half of the contamination will be dispersed into the ocean.
on a separate note, i can confirm takao's post that many japanese cities have built "tsunami walls" including one of the cities shown in one of the videos (where you can clearly see the water coing over a wall and waterfalling into the city. It might have been inefective in a tsunami this massive, but I am sure they can work on smaller ones. One of the California nuclear power plant on the coast also has a similar 25 feet wall.
I also agree with takao on the bizarre design of putting the spent rods in a pool on top of the reactor and without any containment other than the cooling water and the roof.
it seems clearly a design flaw which hopefully will be/has been taken care of in other designs and fixes
digitalbiker
Sep 24, 01:50 AM
I'm 99% sure the machine is intended as an independent hub that can use iTunes libraries on the same network but can also go to the iTS directly and view content straight from there (and possibly other sources, such as Google Video.)
You are going to be sorely disappointed then!.
The iTV most definitely requires a computer. The iTV is a like a suped up Airport extreme for video. It has already been demoed and it requires a computer. The computer streams the iTunes content to the iTV and the iTV receives the stream and translates it into video and audio out via an HDMI or SVGA connection to your TV. The iTV also supports front row and allows remote control of the iTunes source machine.
There maybe more features in the future but those are the reported and demoed features.
You are going to be sorely disappointed then!.
The iTV most definitely requires a computer. The iTV is a like a suped up Airport extreme for video. It has already been demoed and it requires a computer. The computer streams the iTunes content to the iTV and the iTV receives the stream and translates it into video and audio out via an HDMI or SVGA connection to your TV. The iTV also supports front row and allows remote control of the iTunes source machine.
There maybe more features in the future but those are the reported and demoed features.
bruinsrme
Apr 24, 04:38 PM
I figured I'd use this wonderful Easter Sunday (a day spent celebrating the beginning of Spring and absolutely nothing else), to pose a question that I have.... What's the deal with religious people? After many a spirited thread about religion, I still can't wrap my head around what keeps people in the faith nowadays. I'm not talking about those people in third world nations, who have lived their entire lives under religion and know of nothing else. I'm talking about your Americans (North and South), your Europeans, the people who have access to any information they want to get (and some they don't) who should know better by now. And yet, in thread after thread, these people still swear that their way is the only way. No matter what logic you use, they can twist the words from their holy books and change the meaning of things to, in their minds, completely back up their point of view. Is it stubbornness, the inability to admit that you were wrong about something so important for so long? Is it fear? If I admit this is BS, I go to hell? Simple ignorance? Please remember, I'm not talking about just believing in a higher power, I mean those who believe in religion, Jews, Christian, etc.
Insert Mac, PC, Windows and/or OSX where appropriate and you can have the same argument
Insert Mac, PC, Windows and/or OSX where appropriate and you can have the same argument
r1ch4rd
Apr 22, 10:10 PM
I'm in the U.S, and I do receive a lot of pressure! I get on average 4-5 messages a week from believers on Facebook warning me of hellfire. :-/ and I'm not even too strident in my disbelief.
Normally I just take it as a joke, but lately its been getting to me. I think that my hellfire threats are above average even for American atheists.
I'm not sure how to express this eloquently, but I am sure you know what I mean... if you don't believe something it's not a part of your life. I don't believe in God, I also don't believe in the tooth fairy. I just don't label myself as a believer, rather than labeling myself as a disbeliever. It sounds like there is an opinion amongst some individuals that you can be converted, but in reality it's just not even an issue. I just don't get it!
On the plus side, at least you know you won't really end up in hell ;)
Normally I just take it as a joke, but lately its been getting to me. I think that my hellfire threats are above average even for American atheists.
I'm not sure how to express this eloquently, but I am sure you know what I mean... if you don't believe something it's not a part of your life. I don't believe in God, I also don't believe in the tooth fairy. I just don't label myself as a believer, rather than labeling myself as a disbeliever. It sounds like there is an opinion amongst some individuals that you can be converted, but in reality it's just not even an issue. I just don't get it!
On the plus side, at least you know you won't really end up in hell ;)
Multimedia
Oct 26, 03:42 PM
They run at a slower clock speed than the dual cores.2.66GHz is not slower.So if you have a very well multi-threaded app or are running lots of apps at the same time, having 8 cores might help. But otherwise you're probably better off having less but higher speed cores.
The difference between 1 and 2 cores is sizable, between 2 and 4 is decent, but as you up the number of cores you get a diminishing return because the software has to be written that much better to take advantage of it effectively. It's not like the old days where in 18 months, your system's speed effectively doubled because the clockrate double making any one process run twice as fast no matter how badly written it was.I am astounded by those who drop in here not understanding this technology at all. Read the thread then get back to us. Do you even understand the term Multi-Threaded Workload?
Oh and welcome to MacRumors. ;) :p :D
The difference between 1 and 2 cores is sizable, between 2 and 4 is decent, but as you up the number of cores you get a diminishing return because the software has to be written that much better to take advantage of it effectively. It's not like the old days where in 18 months, your system's speed effectively doubled because the clockrate double making any one process run twice as fast no matter how badly written it was.I am astounded by those who drop in here not understanding this technology at all. Read the thread then get back to us. Do you even understand the term Multi-Threaded Workload?
Oh and welcome to MacRumors. ;) :p :D
bigwig
Oct 27, 05:43 PM
That is simply false. The schedular in Mac OS X handles 8 cores just fine... what Applications do with them in a different story.
Scaling isn't really a product of your scheduler, it's a product of eliminating bottlenecks to multiple threads of execution. I'm glad that Apple is working on this. I didn't come up with this from whole cloth or animosity towards Apple, I saw several benchmarks showing how poorly OSX scaled, which I hope are now out of date.
I mentioned SGI several times here because I used to do kernel work for them, so I have a real good idea what it takes to scale performance on large (256-1024 CPU) systems. Btw, that's not a cluster, that's a single kernel being shared by all processors.
Scaling isn't really a product of your scheduler, it's a product of eliminating bottlenecks to multiple threads of execution. I'm glad that Apple is working on this. I didn't come up with this from whole cloth or animosity towards Apple, I saw several benchmarks showing how poorly OSX scaled, which I hope are now out of date.
I mentioned SGI several times here because I used to do kernel work for them, so I have a real good idea what it takes to scale performance on large (256-1024 CPU) systems. Btw, that's not a cluster, that's a single kernel being shared by all processors.
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