ChrisA
Aug 7, 06:43 PM
Probably the same way it is in scalable transactional databases that use multi-versioning concurrency protocols (e.g. PostgreSQL and Oracle). No data is over-written, and every "update" actually creates a new record version.
Lots of ways it COULD be implemented. Looks at Suns new file system ZFS. It is basically "Copy on Write". With a file system you can do things even fancier then with a DBMS. For example a "block" (i-node) exists physicaly on the disk only once but it could be maped into any numbr of files. If a file in only an orderd set of block numbers then to copy a copy all you need to copy is the set of numbers which is on the order of 1000 times shorter then the data itself.
But on the other hand you _want_ the data to be physically copied if it is to be backed up to an external drive.
Some time ago Apple was talking with Sun about using ZFS in OSX but I don't think anything came out of it. I suspect Apple wrote this themselves
The problem is not that I can't figure out how Apple did this but that I can think of about a half dozen ways they could have done this.
Lots of ways it COULD be implemented. Looks at Suns new file system ZFS. It is basically "Copy on Write". With a file system you can do things even fancier then with a DBMS. For example a "block" (i-node) exists physicaly on the disk only once but it could be maped into any numbr of files. If a file in only an orderd set of block numbers then to copy a copy all you need to copy is the set of numbers which is on the order of 1000 times shorter then the data itself.
But on the other hand you _want_ the data to be physically copied if it is to be backed up to an external drive.
Some time ago Apple was talking with Sun about using ZFS in OSX but I don't think anything came out of it. I suspect Apple wrote this themselves
The problem is not that I can't figure out how Apple did this but that I can think of about a half dozen ways they could have done this.
econgeek
Apr 12, 08:40 PM
Migrated to the new thread.
braddouglass
Apr 6, 12:46 PM
Rev D. has no overheating issues. My CPU doesn't go over 70�C when watching 1080p Flash video in fullscreen. The fan sometimes kicks in but it's still very comfortable to use on your lap, since it's barely even warm. Older MBAs suffered from overheating, that is true.
Shouldn't the flash HD have a significant role in overheating? I would think with the Flash HD with no moving parts it would be hard to over heat unless you sit there blocking the fan the whole time. :confused:
Shouldn't the flash HD have a significant role in overheating? I would think with the Flash HD with no moving parts it would be hard to over heat unless you sit there blocking the fan the whole time. :confused:
Rt&Dzine
Apr 28, 06:33 PM
That is a good point... I was "lumped" in as a liberal and I don't consider myself one. I am more moderate. Live and let live kind of guy...
I'm a mixture. Liberal, moderate, and conservative.
I'm a mixture. Liberal, moderate, and conservative.
H. Flower
Apr 7, 11:03 PM
All right then, here we are.
This better be good. Or back to AVID, or on to Premiere.
This better be good. Or back to AVID, or on to Premiere.
raymondso
Sep 19, 09:51 AM
I used to think that until I replaced my 12" Thinkpad with a (budget) 15" Thinkpad. A 15" laptop is obviously a lot bigger, possibly heavier and definetly more difficult to carry around everywhere. I'll never buy a 15" laptop again.
It depends on how you will be using it, but one good option that works for me is to go for a 13" so its more portable then get a cheap 17"/19" TFT monitor for home and use it to extend the desktop. Forget Merom, I don't know how I survived for so long without an extended desktop.
An extra 17"s really does change your life!
totally agree
Currently i'm using a 12.1" notebook(PC) with a 19" desktop LCD for photo editing :p
It depends on how you will be using it, but one good option that works for me is to go for a 13" so its more portable then get a cheap 17"/19" TFT monitor for home and use it to extend the desktop. Forget Merom, I don't know how I survived for so long without an extended desktop.
An extra 17"s really does change your life!
totally agree
Currently i'm using a 12.1" notebook(PC) with a 19" desktop LCD for photo editing :p
Backup15andpunt
Nov 29, 01:34 AM
Here an idea. Have Apple buy Universal. Then Microsoft and pay Apple for every Zune it sells. Of course the government might frown on this kind of purchase.
skunk
Feb 28, 06:16 PM
Lee, I agree with you about what you say, but he clearly did say that this was only his opinion. People are allowed that, even if it is hateful and exclusionist.Sure, but if they are going to air their opinions, they should also be able to back their opinions up with something better than hearsay.
citizenzen
Mar 22, 02:59 PM
A dictator is slaughtering his own people.
A government in power is responding against a rebellion.
If a rebellion sprang up in the United States, our government would respond with force as well.
"Slaughtering his own people" sounds a little propogandish to me. Are you saying that Qaddafi is taking people who have no connection to the rebellion at all and slaughtering them?
How can any government meet armed internal rebellion without qualifying as "slaughtering their own people"?
A government in power is responding against a rebellion.
If a rebellion sprang up in the United States, our government would respond with force as well.
"Slaughtering his own people" sounds a little propogandish to me. Are you saying that Qaddafi is taking people who have no connection to the rebellion at all and slaughtering them?
How can any government meet armed internal rebellion without qualifying as "slaughtering their own people"?
lar34
Sep 18, 11:22 PM
Merom notebooks by next week I hope, but more importantly, less heat... please.
designgeek
Apr 7, 01:55 AM
ULV CPUs (17W) will go to 11.6". The TDP of 320M is not known but 9400M has TDP of 12W so it is quite safe to assume that the TDP is similar to that. That means current 11.6" MBA has TDP of 22W (includes CPU, GPU, chipset) while SB 11.6" MBA would have a TDP of 21W (17W for the CPU and ~4W for the PCH).
13" will go with LV CPUs (25W). Again, currently it has 17W for the CPU and 12W for 320M. That's 29W. 25W CPU and ~4W for PCH gives you the same 29W.
11.6" - Core i5-2537M (option for Core i7-2657M)
13.3" - Core i7-2629M (option for Core i7-2649M)
Thank the gods for you sir, this is exactly what I was hoping to find in the comments. I'm also hoping they'll include Thunderbolt in the next revision. I'm totally going to get one in August if they do.
13" will go with LV CPUs (25W). Again, currently it has 17W for the CPU and 12W for 320M. That's 29W. 25W CPU and ~4W for PCH gives you the same 29W.
11.6" - Core i5-2537M (option for Core i7-2657M)
13.3" - Core i7-2629M (option for Core i7-2649M)
Thank the gods for you sir, this is exactly what I was hoping to find in the comments. I'm also hoping they'll include Thunderbolt in the next revision. I'm totally going to get one in August if they do.
shamino
Jul 14, 05:13 PM
What about support for 2 30" cinema displays? You need two video cards to do that, right?
Nope. The GeForce 6800 card Apple offered on their AGP-based G5 towers had two dual-link DVI ports.
Today's high-end PCIe offering - an ATI Quadro 4500 - also does, but it consumes two slots (one card, but the fan is too large to allow anything in the slot next to it.)
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).
Given that this is easily available for the PC world, there's no reason why it can't also be made available for the Mac (aside from someone deciding to write the device driver, of course.)
Nope. The GeForce 6800 card Apple offered on their AGP-based G5 towers had two dual-link DVI ports.
Today's high-end PCIe offering - an ATI Quadro 4500 - also does, but it consumes two slots (one card, but the fan is too large to allow anything in the slot next to it.)
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).
Given that this is easily available for the PC world, there's no reason why it can't also be made available for the Mac (aside from someone deciding to write the device driver, of course.)
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gregorsamsa
Aug 26, 07:17 AM
in my experience, their support has always sucked..even from day 1 with my first PowerMac G5 back in 2004.
Let's see...
PowerMac G5 arrived with a defective superdrive, miscalibrated fans. The genius 'couldn't hear the fans', and accidentally put the repair in someone else's name, so when I tried to pick it up, I had to haggle to get it. Oh, and when I did finally get it, the superdrive was still broken. Super...
Cinema Display arrived with 7 dead pixels...I know this is a touchy issue, but the problem with their support regarding it was that none of them knew the actual number to replace it at. The phone people told me 5, the store (after the 45 minute drive there) told me 15, and another rep (who finally replaced it) told me 3.
iMac G5 had a defective power supply on arrival--would shut off randomly, some times not turning on. They refused to acknowledge this the first time we were there...the second time we were there...third time...fourth time they gave in--by saying "we'll keep it overnight." They still.."couldn't find a problem." When they gave it back, it worked for..two weeks, then the fans started being wonky. They couldn't hear that the first or second visit, on the third visit they took it overnight, "couldn't hear any audible issue", but it shutdown on them. I guess taking our word for it, they replaced the fan assembly, logic board, and power supply. Worked for a month, now it still shuts down.
MacBook Pro had the defective battery (random shutdowns), now fixed. Also, I had the screen buzz (now fixed), CPU A Whine (now fixed). They basically fixed all the issues in this machine, but were four days over their expected return time.
I'm not saying their support is totally crap, but they're certainly not consistent in performance, technical knowledge, friendliness, or even coverage. I was talking to a friend about "what I'd do if I were Steve Jobs," and the first thing we agreed on was to fire the entire AppleCare department, and all the genius', because they all seem to suck.
But hey, my iBook G4 and MacBook are fine...
You, & some others here, have obviously had more than your fair share of bad luck with Apple. Customers paying good money rightly expect to receive faultless products every time. When they don't, it's understandable they're peeved off. In this respect, Apple must do better.
Many others, however, swear by Apple's general reliability & quality of products. (My iBook, bought only last October, is used at least a few hours almost daily. So far, no problems whatsoever!). Fact is, statistics consistently prove Apple still to be one of the best computer manufacturers when it comes to longevity of their products.
PS. I'm not an Apple fanboy. My next computer (a 15.4" laptop) may not even be another Apple. But I'm 100% sure I will buy another Apple computer in future, not least because of the general high quality I know I can expect from Apple compared to many PC manufacturers, & a wonderful OS to boot! - But, then again, if Apple's QC was to deteriorate significantly, & get a consistently growing number of customer complaints...
Let's see...
PowerMac G5 arrived with a defective superdrive, miscalibrated fans. The genius 'couldn't hear the fans', and accidentally put the repair in someone else's name, so when I tried to pick it up, I had to haggle to get it. Oh, and when I did finally get it, the superdrive was still broken. Super...
Cinema Display arrived with 7 dead pixels...I know this is a touchy issue, but the problem with their support regarding it was that none of them knew the actual number to replace it at. The phone people told me 5, the store (after the 45 minute drive there) told me 15, and another rep (who finally replaced it) told me 3.
iMac G5 had a defective power supply on arrival--would shut off randomly, some times not turning on. They refused to acknowledge this the first time we were there...the second time we were there...third time...fourth time they gave in--by saying "we'll keep it overnight." They still.."couldn't find a problem." When they gave it back, it worked for..two weeks, then the fans started being wonky. They couldn't hear that the first or second visit, on the third visit they took it overnight, "couldn't hear any audible issue", but it shutdown on them. I guess taking our word for it, they replaced the fan assembly, logic board, and power supply. Worked for a month, now it still shuts down.
MacBook Pro had the defective battery (random shutdowns), now fixed. Also, I had the screen buzz (now fixed), CPU A Whine (now fixed). They basically fixed all the issues in this machine, but were four days over their expected return time.
I'm not saying their support is totally crap, but they're certainly not consistent in performance, technical knowledge, friendliness, or even coverage. I was talking to a friend about "what I'd do if I were Steve Jobs," and the first thing we agreed on was to fire the entire AppleCare department, and all the genius', because they all seem to suck.
But hey, my iBook G4 and MacBook are fine...
You, & some others here, have obviously had more than your fair share of bad luck with Apple. Customers paying good money rightly expect to receive faultless products every time. When they don't, it's understandable they're peeved off. In this respect, Apple must do better.
Many others, however, swear by Apple's general reliability & quality of products. (My iBook, bought only last October, is used at least a few hours almost daily. So far, no problems whatsoever!). Fact is, statistics consistently prove Apple still to be one of the best computer manufacturers when it comes to longevity of their products.
PS. I'm not an Apple fanboy. My next computer (a 15.4" laptop) may not even be another Apple. But I'm 100% sure I will buy another Apple computer in future, not least because of the general high quality I know I can expect from Apple compared to many PC manufacturers, & a wonderful OS to boot! - But, then again, if Apple's QC was to deteriorate significantly, & get a consistently growing number of customer complaints...
sysiphus
Mar 21, 02:39 PM
It is in fact somewhat problematic. At present, the government is basically run by moneyed interests that supply the funding needed for the candidates to get into office (so that they can shower favours upon their benefactors and sponsors). This is the sixth check/balance, which was not literally codified but has become standard via legal precedent. Those of us who feel that real change is called for still support the (p)resident because he is the one least likely to enact tragic "progress". The system is, nonetheless, dreadfully broken. The idiots that I hold in serious contention are either marginalized into submission or holding seats of power, a situation that serves only to amplify our division, to our detriment.
I see your point. Personally, I'd been hoping Obama might hold ground on issues such as torture/surveillance/getting out of wars, and was fully prepared to accept fiscal policies I would hate (as a conservative--NOT a Republican, mind you) if we'd get some of the aforementioned issues. Gave up on any hope of that when PATRIOT got extended, though...on a few social issues (gay rights) Obama has distinguished himself admirably from his predecessor. However, in the big picture, we've still got a shill for big business and big government/brother, who is overextending the American military with conflicts in which we cannot afford to participate. /end rant
I see your point. Personally, I'd been hoping Obama might hold ground on issues such as torture/surveillance/getting out of wars, and was fully prepared to accept fiscal policies I would hate (as a conservative--NOT a Republican, mind you) if we'd get some of the aforementioned issues. Gave up on any hope of that when PATRIOT got extended, though...on a few social issues (gay rights) Obama has distinguished himself admirably from his predecessor. However, in the big picture, we've still got a shill for big business and big government/brother, who is overextending the American military with conflicts in which we cannot afford to participate. /end rant
Littleodie914
Jul 27, 09:44 AM
So since these new mobile chips are pin-compatible with the Yonah chips (like the one in my MBP), will it be easy/possible to simply buy one and upgrade myself?
Digitaljim
Nov 28, 08:05 PM
So Universal Music Group must have received something in the region of $112 so far from Zune sales.
TsMkLg068426
Apr 25, 03:23 PM
OH ****! GOOGLE AND MICROSOFT FANBOYS ARE MAD! U MUST SUE APPLE NOW! LOL!:p:apple:
chrono1081
Mar 31, 03:46 PM
Let the Apple fanboys begin patting each other on the back, and taking something and running wild with it.
By the end of this thread, it'll be impossible to decipher what the original story was about.
Why does everyone start with the "Apple Fanboy!" BS? Its not necessary. You realize this is MacRumors right where if you say something nice about Apple you're a fanboy but you can insult Apple all day and be labeled as giving a fair opinion.
By the end of this thread, it'll be impossible to decipher what the original story was about.
Why does everyone start with the "Apple Fanboy!" BS? Its not necessary. You realize this is MacRumors right where if you say something nice about Apple you're a fanboy but you can insult Apple all day and be labeled as giving a fair opinion.
FF_productions
Aug 5, 03:26 PM
Finally MR has put together a final rumor roundup...
manu chao
Apr 27, 08:24 AM
Keeping a database of our general location is logging our location.
Yes, but
a) there is a difference between logging where you have been and storing the timestamp of when you have been there, I don't think Apple needs to or should have stored the timestamp
b) restricting the database to all locations you been to in the last seven days greatly diminishes the harm potential
Apple admitted (b), and said they would fix it. They might also fix (a).
Anybody who connects to a WiFi network automatically stores its SSID (unless you tell your iOS device to forget the network every time after your done). This alone is a record of your location (though again, the list of WiFi networks could be stripped of its access date, ie, issue (a)).
Yes, but
a) there is a difference between logging where you have been and storing the timestamp of when you have been there, I don't think Apple needs to or should have stored the timestamp
b) restricting the database to all locations you been to in the last seven days greatly diminishes the harm potential
Apple admitted (b), and said they would fix it. They might also fix (a).
Anybody who connects to a WiFi network automatically stores its SSID (unless you tell your iOS device to forget the network every time after your done). This alone is a record of your location (though again, the list of WiFi networks could be stripped of its access date, ie, issue (a)).
BenRoethig
Apr 6, 12:35 PM
I can't wait. I think a 13" air will be my next Mac.
phatpat88
Jul 15, 12:46 AM
What about 4 SATA II Drives? This way I can have a mirrored 1TB RAID [clicks heals]
The speed of a RAID with the security of mirroring.. it doesn't get mucho better :)
The speed of a RAID with the security of mirroring.. it doesn't get mucho better :)
satty
Jul 20, 08:48 AM
At some point your going to have deminished returns. Sure multimedia apps can take advantage of a few more cores, but I dont see Mail running faster on 4 cores, nevermind 2! The nice thing about intel is that they seem to realise that, and have invested in improved IO as well, look at Pci express and SATA, you can have the fastest processor in the world, but if your running it with 512megs of memory your going to slow down fast!
BoyBach
Nov 29, 06:30 AM
But do you really think a court will decide that way. Not likely, especially if it's a judge from the wealth maximisation school of thought.
It would be an interesting case, and yes, it is possible.
It would be an interesting case, and yes, it is possible.
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