tortoise
Aug 23, 03:04 PM
Do you have a reference showing that this translates to better performance in real-world application tests in a head to head competition?
Not handy, since a lot of this happened on mailing lists.
The short version is that the memory performance scales in a very sub-linear fashion as a function of the number of cores being used, whereas Opteron scalability is almost linear up to a large number of cores. The good news is that for single dual-core processors the memory performance is on par with dual-core Opterons and their in-cache performance can be better. The bad news is that this performance does not hold as you scale cores in a system. So for some applications (e.g. those that live mostly in cache) the Woodcrest processors will be mildly faster than Opterons, but for most the performance is about even in real app benchmarks.
I've seen fairly comprehensive benchmarks for both databases and scientific computing applications, both of which thoroughly exercise the memory subsystem. Even though a single Intel core theoretically has more bandwidth, the high latency means that the real bandwidth is about the same as the slower Opterons (which have real bandwidth that approaches theoretical) and the cross-sectional bandwidth of Opterons when you get up to 4 cores and higher is much higher since the scaling is almost linear with the number of cores. For Intel, I think it was the case that a bigger cache was a cheaper design choice than a truly scalable memory subsystem. As a result, they will have different competencies. Some types of floating point codes should run very well on Intel.
Not handy, since a lot of this happened on mailing lists.
The short version is that the memory performance scales in a very sub-linear fashion as a function of the number of cores being used, whereas Opteron scalability is almost linear up to a large number of cores. The good news is that for single dual-core processors the memory performance is on par with dual-core Opterons and their in-cache performance can be better. The bad news is that this performance does not hold as you scale cores in a system. So for some applications (e.g. those that live mostly in cache) the Woodcrest processors will be mildly faster than Opterons, but for most the performance is about even in real app benchmarks.
I've seen fairly comprehensive benchmarks for both databases and scientific computing applications, both of which thoroughly exercise the memory subsystem. Even though a single Intel core theoretically has more bandwidth, the high latency means that the real bandwidth is about the same as the slower Opterons (which have real bandwidth that approaches theoretical) and the cross-sectional bandwidth of Opterons when you get up to 4 cores and higher is much higher since the scaling is almost linear with the number of cores. For Intel, I think it was the case that a bigger cache was a cheaper design choice than a truly scalable memory subsystem. As a result, they will have different competencies. Some types of floating point codes should run very well on Intel.
Evangelion
Aug 12, 03:51 AM
Is it possible for Apple to release a phone sold in their stores that would work on all networks? Or have several versions of the phone that will work for Verizon, Cingular...
I'll never be ceased at just how retarded the phone-system is outside Finland (or Scandinavia). I just buy a phone, and I get a SIM-card, and boom, it just works. I can replace the SIM at will, and it will just work. No hassle, no worries that "but this phone wotn work with that operator!". Unsatisfied with your current operator? It takes maybe ten minutes to get a new operator, and you get to keep your old number, AND your phone (it is YOUR phone, after all!).
I think that the scheme where the phones are tied to certain operator is just plain retarded. This is a perfect example as to why that is so. And I'm REALLY surprised that you folks (the rest of the world that is) hasn't seen the light on this issue. You just happily accept a scheme that limits choice and competition.
I'll never be ceased at just how retarded the phone-system is outside Finland (or Scandinavia). I just buy a phone, and I get a SIM-card, and boom, it just works. I can replace the SIM at will, and it will just work. No hassle, no worries that "but this phone wotn work with that operator!". Unsatisfied with your current operator? It takes maybe ten minutes to get a new operator, and you get to keep your old number, AND your phone (it is YOUR phone, after all!).
I think that the scheme where the phones are tied to certain operator is just plain retarded. This is a perfect example as to why that is so. And I'm REALLY surprised that you folks (the rest of the world that is) hasn't seen the light on this issue. You just happily accept a scheme that limits choice and competition.
Brandon4692
Jun 22, 07:03 PM
Yes Brandon they received them in store today. My buddy was able to grab two from the local store that did not generate any PINs so I will be getting mine Thursday morning now. Radio Shack is also giving $20 Gift Cards to use towards accessories at the time of purchase in this area.
Ugh! Lucky!! I think I'm going to just keep calling my local radioshacks and head to one at least an hour before they open on Thursday!
Ugh! Lucky!! I think I'm going to just keep calling my local radioshacks and head to one at least an hour before they open on Thursday!
Moyank24
Feb 28, 09:02 PM
We all have our crosses to bear. Ultimately it is up to the homosexual to sin or not
What does my post have to do with cinema excellence?
default: a preselected option adopted by a computer program or other mechanism when no alternative is specified by the user or programmer.
Unless influenced otherwise the brain develops heterosexually
Yeah, I know what default means. Your explanation has to be one of the most ridiculous I have encountered. Thanks for the laugh.
Though, i do have to wonder. What do you think "influcenes" the brain that may cause homosexuality?
What does my post have to do with cinema excellence?
default: a preselected option adopted by a computer program or other mechanism when no alternative is specified by the user or programmer.
Unless influenced otherwise the brain develops heterosexually
Yeah, I know what default means. Your explanation has to be one of the most ridiculous I have encountered. Thanks for the laugh.
Though, i do have to wonder. What do you think "influcenes" the brain that may cause homosexuality?
daneoni
Aug 26, 09:26 AM
Get with what program? I went to the support site on the day the recall was announced, checked to see if my serial number was in the range, it wasn't, and I went on with my life. Just to be safe, I even checked back a couple days later, and the ranges were still the same as the first time I checked.
I had to do the same thing wheh I was checking out our Dell laptops at the office. It's really not that difficult a concept. I think some people just like to have something to complain about.
Some sites were reporting wrong ranges, at the end of the day its which site alerts you first, in my case it was MR and they didnt get it right (http://www.macrumors.com/pages/2006/08/20060824134647.shtml) initially which is.......confusing
I had to do the same thing wheh I was checking out our Dell laptops at the office. It's really not that difficult a concept. I think some people just like to have something to complain about.
Some sites were reporting wrong ranges, at the end of the day its which site alerts you first, in my case it was MR and they didnt get it right (http://www.macrumors.com/pages/2006/08/20060824134647.shtml) initially which is.......confusing
Brandon4692
Jun 22, 07:03 PM
Yes Brandon they received them in store today. My buddy was able to grab two from the local store that did not generate any PINs so I will be getting mine Thursday morning now. Radio Shack is also giving $20 Gift Cards to use towards accessories at the time of purchase in this area.
Ugh! Lucky!! I think I'm going to just keep calling my local radioshacks and head to one at least an hour before they open on Thursday!
Ugh! Lucky!! I think I'm going to just keep calling my local radioshacks and head to one at least an hour before they open on Thursday!
trogdor!
Jul 14, 10:20 PM
The current powermac g5's have 1 16x PCI-E slot for the video card along with 2 - 4x and 1 - 8x PCI-E slots. Video cards are about the only thing right now that can even use all 16 lanes of the PCI-E bus. I am not saying future things wont, but thats how it currently stands.
Yamcha
Apr 19, 02:41 PM
The First Commercial GUI
http://img62.imageshack.us/img62/5659/star1vg.gif
Xerox's Star workstation was the first commercial implementation of the graphical user interface. The Star was introduced in 1981 and was the inspiration for the Mac and all the other GUIs that followed.
http://img217.imageshack.us/img217/7892/leopardpreviewdesktop4.jpghttp://img714.imageshack.us/img714/5733/xerox8010star.gif
http://img62.imageshack.us/img62/5659/star1vg.gif
Xerox's Star workstation was the first commercial implementation of the graphical user interface. The Star was introduced in 1981 and was the inspiration for the Mac and all the other GUIs that followed.
http://img217.imageshack.us/img217/7892/leopardpreviewdesktop4.jpghttp://img714.imageshack.us/img714/5733/xerox8010star.gif
Mammoth
Jul 15, 10:14 AM
Looking at PC product offerings by ATI (http://www.ati.com/products/workstation/fireglmatrix.html), you can see that they also offer video cards with two dual-link DVI ports on a single card. You can even get this on a Radeon X1900 series card (http://www.ati.com/products/radeonx1900/radeonx1900xtx/specs.html).
I believe you are wrong (http://www.ati.com/designpartners/media/images/RX1900_Board_lg.jpg).
(Believe)
I believe you are wrong (http://www.ati.com/designpartners/media/images/RX1900_Board_lg.jpg).
(Believe)
H. Flower
Apr 11, 02:32 PM
For the past three years, Apple's decisions in the professional market have been a bag of fail.
Anyone else starting to get a sinking feeling?
Anyone else starting to get a sinking feeling?
jaxstate
Aug 11, 02:40 PM
It will not be carrier free. They'll be able to see more phone buy letting them go for a cheaper price w/2-year agreement. Buying a celly without a plan can be quite expensive.
LordJohnWhorfin
Aug 26, 09:05 PM
Most credit cards have very good customer assistance departments and will assist you in dealing with uncooperative vendors.
A while back I bought an iBook for my mom directly from Apple, set it up, and just a few days before leaving to deliver it (she lives in Europe) the damn thing died (it would no longer charge). Called AppleCare, went to the Apple store, talked to the "genius" (a real jackass, but that's another story) and essentially they wouldn't give me a refund because it was a "built to order" machine or exchange it for a new computer because I hadn't bought it at the local Apple store (I bought it online though the developer program).
I called Visa, explained the story, they said you have to try to resolve the issue with the vendor first, I described what I had done and how uncooperative Apple had been. They said they'd call Apple themselves; an hour letter I got an apologetic call from Apple and an RMA number. I shipped my computer back to Apple by FedEx at their expense, and got full credit. They even restored my hardware discount :)
So yeah, as another poster said, the squeaky wheel does get the grease...
A while back I bought an iBook for my mom directly from Apple, set it up, and just a few days before leaving to deliver it (she lives in Europe) the damn thing died (it would no longer charge). Called AppleCare, went to the Apple store, talked to the "genius" (a real jackass, but that's another story) and essentially they wouldn't give me a refund because it was a "built to order" machine or exchange it for a new computer because I hadn't bought it at the local Apple store (I bought it online though the developer program).
I called Visa, explained the story, they said you have to try to resolve the issue with the vendor first, I described what I had done and how uncooperative Apple had been. They said they'd call Apple themselves; an hour letter I got an apologetic call from Apple and an RMA number. I shipped my computer back to Apple by FedEx at their expense, and got full credit. They even restored my hardware discount :)
So yeah, as another poster said, the squeaky wheel does get the grease...
skunk
Apr 27, 03:10 PM
I'd be fascinated to know exactly what you did to "discover" those layers, 5P. I have Photoshop and Illustrator too. Guess what? One layer. Nothing selectable. At least one of us is talking complete bollocks.
amin
Aug 18, 10:28 PM
Obviously, inherently the iMac design is inferior to the Mac Pro/Powermac.
It may be obvious, but based on your earlier statement that a Conroe iMac would be "able to crunch through" apps faster than a Mac Pro, the obvious seemed worth identifying.
But I think there's a bigger reason why Apple chose to go all quad with the Mac Pro: Apple chose all quad because a duo option would have had the same performance in professional apps (again, excluding handbrake and toast which are the only two examples touted about). A single processor Woodcrest or Conroe option will have the same obtainable CPU power for 90-95% of the professional market for another 6-12 months at the very least.
So you think they put an extra processor in across the line just to be able to say they had a quad? Even the AnandTech article you used as a source showed here (http://www.anandtech.com/mac/showdoc.aspx?i=2816&p=18) that PS took advantage of quad cores in Rosetta
Here's some data regarding the Mac Pro's FSB:
*snip*
What can we take from this? Because of the use of FB-DIMMs, the Mac Pro's effective FSB is that of ~640MHz DDR2 system.
And how does it fare in memory latency?
*snip*
Your points about latency and FSB are not separate negatives as you have made them. They are redundant theoretical concerns with implications of unclear practical significance.
As for bandwidth, although the Mac Pro has a load of theoretical bandwidth, the efficiency is an abysmal 20%. In real use a DDR2 system has 72% more usable bandwidth. (source here (http://www.anandtech.com/mac/showdoc.aspx?i=2816&p=11))
I don't know bout you, but if I were a heavy user of memory intensive apps such as Photoshop, I'd be worried. Worried in the sense that a Conroe would be noticeably faster.
I am not worried. Everything anyone has come up with on this issue are taken from that same AnandTech article. Until I see more real-world testing, I will not be convinced. Also, I expect that more pro apps such as PS will be able to utilize quad cores in the near future, if they aren't already doing so. Finally, even if Conroe is faster, Woodcrest is fast enough for me ;).
Memory issues aside, Woodcrests are faster than Conroes, 2.4% on average (source here (http://www.anandtech.com/showdoc.aspx?i=2795&p=6))
I think you misread that. They were comparing Core 2 Extreme (not Woodcrest) and Conroe to see whether the increased FSB of the former would make much difference.
It may be obvious, but based on your earlier statement that a Conroe iMac would be "able to crunch through" apps faster than a Mac Pro, the obvious seemed worth identifying.
But I think there's a bigger reason why Apple chose to go all quad with the Mac Pro: Apple chose all quad because a duo option would have had the same performance in professional apps (again, excluding handbrake and toast which are the only two examples touted about). A single processor Woodcrest or Conroe option will have the same obtainable CPU power for 90-95% of the professional market for another 6-12 months at the very least.
So you think they put an extra processor in across the line just to be able to say they had a quad? Even the AnandTech article you used as a source showed here (http://www.anandtech.com/mac/showdoc.aspx?i=2816&p=18) that PS took advantage of quad cores in Rosetta
Here's some data regarding the Mac Pro's FSB:
*snip*
What can we take from this? Because of the use of FB-DIMMs, the Mac Pro's effective FSB is that of ~640MHz DDR2 system.
And how does it fare in memory latency?
*snip*
Your points about latency and FSB are not separate negatives as you have made them. They are redundant theoretical concerns with implications of unclear practical significance.
As for bandwidth, although the Mac Pro has a load of theoretical bandwidth, the efficiency is an abysmal 20%. In real use a DDR2 system has 72% more usable bandwidth. (source here (http://www.anandtech.com/mac/showdoc.aspx?i=2816&p=11))
I don't know bout you, but if I were a heavy user of memory intensive apps such as Photoshop, I'd be worried. Worried in the sense that a Conroe would be noticeably faster.
I am not worried. Everything anyone has come up with on this issue are taken from that same AnandTech article. Until I see more real-world testing, I will not be convinced. Also, I expect that more pro apps such as PS will be able to utilize quad cores in the near future, if they aren't already doing so. Finally, even if Conroe is faster, Woodcrest is fast enough for me ;).
Memory issues aside, Woodcrests are faster than Conroes, 2.4% on average (source here (http://www.anandtech.com/showdoc.aspx?i=2795&p=6))
I think you misread that. They were comparing Core 2 Extreme (not Woodcrest) and Conroe to see whether the increased FSB of the former would make much difference.
mcrain
Mar 17, 02:03 PM
OK, I confess, "shut down" was a slight exaggeration.
Actually, not at all.
NAPOLITANO: Would it be good fiscally and philosophically if the government did shut down for a few weeks and the American people could see life would go on without the federal government for a little while?
PAUL: I don’t think it would hurt one bit. If an individual can’t pay their rent on time, they might ask their landholder to say “look, I’ll be there next week.” They adjust. The owner and the renter adjust. This is the way the government should adjust. If they can’t pay their bills, wait. But they are afraid the world would panic and the world would come to an end. But it would be an admission that we’re in big trouble. But we are in big trouble. But to deny it and to continue to spend and continue to inflate and waiting for the bond bubble to burst, that doesn’t make sense to me.
cute love quotes and sayings
Cute Love Quotes For Facebook
Actually, not at all.
NAPOLITANO: Would it be good fiscally and philosophically if the government did shut down for a few weeks and the American people could see life would go on without the federal government for a little while?
PAUL: I don’t think it would hurt one bit. If an individual can’t pay their rent on time, they might ask their landholder to say “look, I’ll be there next week.” They adjust. The owner and the renter adjust. This is the way the government should adjust. If they can’t pay their bills, wait. But they are afraid the world would panic and the world would come to an end. But it would be an admission that we’re in big trouble. But we are in big trouble. But to deny it and to continue to spend and continue to inflate and waiting for the bond bubble to burst, that doesn’t make sense to me.
hayesk
Mar 26, 02:26 PM
I agree entirely.
I also think 10.4.11 is the best OS ever.
I don't want "wow." I want them to fix the broken things, like IMAP subscriptions in Mail, and sync code for Address book, for example.
I also think 10.4.11 is the best OS ever.
I don't want "wow." I want them to fix the broken things, like IMAP subscriptions in Mail, and sync code for Address book, for example.
sehix
Nov 28, 09:44 PM
Actually, they do. They also got paid on every blank tape sold when cassettes were big. I think it is crazy for everyone to think that the music industry is greedy when it getting squeezed out of all of their revenue streams.
Actually, they aren't. They're making noises like it's happening, which isn't the same thing.
love quotes and sayings
love quotes and sayings
Actually, they aren't. They're making noises like it's happening, which isn't the same thing.
tundrabuggy
Apr 19, 03:23 PM
I'm sure quite sure what Apple hopes to accomplish here. Every smart phone steals from every other one. I don't know if you can differentiate design "concepts". It's like suing someone because the chords for his blues song goes in a 1-4-5 pattern like yours does. It's just part of the genre.
Tony
Chord patterns are indeed part of the genre; however, when you also copy the melody and simply change the title AKA(George Harrison..."Here comes the sun"), then, you get the pants sued off of you.
Tony
Chord patterns are indeed part of the genre; however, when you also copy the melody and simply change the title AKA(George Harrison..."Here comes the sun"), then, you get the pants sued off of you.
rickjs
Apr 6, 03:06 PM
The Xoom is a great tablet. I'm willing to bet that the majority of you who have discredited it haven't even used it. And it DOES have 3.0 Honeycomb, which IS made for tablets. The iPad 2 is still a better tablet, but is it not possible some of the iPad 2's sales have come from just the Apple name? People will buy an Apple product even if it didn't have a feature.
twoodcc
Aug 11, 10:10 AM
bring it on!! my razr isn't that impressive. in fact, not any phone i've ever had was. maybe apple can change this
Multimedia
Aug 27, 03:48 PM
Just got the August Dell catalog and on page 17 under a red notebook that has a Yonah Core Duo inside it they display a large Core 2 Duo logo. In super fine print under it - about 6 point typeface - they mention "E6700 processors start at $2540". Can you believe it?
They are deliberately confusing their customers with unfair comparisons between 1.86 GHz E6300 Conroe for $2460 and 2GHz T2500 Yonah for $2715 on their notebook pages. :eek: :confused: :rolleyes:
I mean Apple's prices are RADICALLY LOWER with RADICALLY MORE power per dollar.
They are deliberately confusing their customers with unfair comparisons between 1.86 GHz E6300 Conroe for $2460 and 2GHz T2500 Yonah for $2715 on their notebook pages. :eek: :confused: :rolleyes:
I mean Apple's prices are RADICALLY LOWER with RADICALLY MORE power per dollar.
orkle
Nov 29, 06:53 AM
The iTunes Store wouldn't be where it is today if Universal Music hadn't been so forthcoming with getting their catalogue on there.
Bill McEnaney
Mar 3, 05:13 AM
Bill, I would love to hear your explanation for the position of the male prostate.
I don't understand the question. Whatever it means, I wouldn't assume that having, say, genitals, means that I'm always morally free to have sex. If everyone with genitals were always morally free to do that, homosexually abusive pedophile priests would have been morally free to molest their victims.
IYou might say, "Bill, if the sex was consensual, maybe there nothing morally wrong with it." But people can coerce others into consenting.
A quick side note: Sexual tension is most often the cause for anger, jealousy and frustration. So, if everyone had at least one good orgasm every day, the world would be a much more relaxed and peaceful place and we wouldn't have the need for silly discussions such as these.
Most often? How many are jealous of others because the others are right, because they drive fancy cars, etc.?
Some may feel relaxed about something because they've deadened their consciences that rightly warned them against it.. In that case, a discussion such as this one may be needed, even if the participants don't feel any sexual tension.
I don't understand the question. Whatever it means, I wouldn't assume that having, say, genitals, means that I'm always morally free to have sex. If everyone with genitals were always morally free to do that, homosexually abusive pedophile priests would have been morally free to molest their victims.
IYou might say, "Bill, if the sex was consensual, maybe there nothing morally wrong with it." But people can coerce others into consenting.
A quick side note: Sexual tension is most often the cause for anger, jealousy and frustration. So, if everyone had at least one good orgasm every day, the world would be a much more relaxed and peaceful place and we wouldn't have the need for silly discussions such as these.
Most often? How many are jealous of others because the others are right, because they drive fancy cars, etc.?
Some may feel relaxed about something because they've deadened their consciences that rightly warned them against it.. In that case, a discussion such as this one may be needed, even if the participants don't feel any sexual tension.
VanNess
Aug 5, 10:20 PM
Well, if you're located and in SF and are you are a Safari user, or have questions about Safari, or maybe even questions about what SJ shows Safari-wise or other webkit-related content in Leopard, you don't have to shell out for WWDC admission, because the Safari/webkit folks are hosting a freebie (http://webkit.opendarwin.org/blog/?p=63) on Tuesday at 7 that's open to all.
If you are a Mac OS X developer, a browser hacker, a web developer, or just someone with an interest in cool technology, then come hobnob with WebKit contributors from Apple and elsewhere. Unlike WWDC itself, this event will be open to anyone who is interested free of charge. Also, it will be unbelievably awesome. We promise!
If you are a Mac OS X developer, a browser hacker, a web developer, or just someone with an interest in cool technology, then come hobnob with WebKit contributors from Apple and elsewhere. Unlike WWDC itself, this event will be open to anyone who is interested free of charge. Also, it will be unbelievably awesome. We promise!
No comments:
Post a Comment