Chappers
Mar 11, 04:26 AM
Sadly death toll rises to 29
Having been in a big quake - I know how scary it is and hope that all their preparation helps.
Having been in a big quake - I know how scary it is and hope that all their preparation helps.
Pants
Oct 9, 12:11 PM
Originally posted by gopher
[B]Spec fp is extremely biased because it assumes the case of zero error code. It doesn't measure raw performance like floating point calculations per second does. When errors occur in code, the Pentium grinds to a halt, sometimes even making the Pentium IV slower than the Pentium III that is a whole Ghz slower!
yes, but your assuming that
When RC5 and Genentech tests prove that raw performance the G4 is much faster than the Pentium IV or AMD, which it does, then it basically throws out the whole idea that Mhz matters. The G4 is 4 to 5 times faster.
As for hand optimizing code, you don't have to do it. What you do have to do is write developers of your software if you are displeased with how poorly they optimize code, or go seek better written software. That's why people who do video prefer Final Cut Pro over Adobe Premier in many cases.
what when the altivec unit gets starved of data?
Im talking from a 'doing' point of view - when a machine i have spent 2.5k wont allow me to use its best feature (with gcc) then i feel cheated.
[B]Spec fp is extremely biased because it assumes the case of zero error code. It doesn't measure raw performance like floating point calculations per second does. When errors occur in code, the Pentium grinds to a halt, sometimes even making the Pentium IV slower than the Pentium III that is a whole Ghz slower!
yes, but your assuming that
When RC5 and Genentech tests prove that raw performance the G4 is much faster than the Pentium IV or AMD, which it does, then it basically throws out the whole idea that Mhz matters. The G4 is 4 to 5 times faster.
As for hand optimizing code, you don't have to do it. What you do have to do is write developers of your software if you are displeased with how poorly they optimize code, or go seek better written software. That's why people who do video prefer Final Cut Pro over Adobe Premier in many cases.
what when the altivec unit gets starved of data?
Im talking from a 'doing' point of view - when a machine i have spent 2.5k wont allow me to use its best feature (with gcc) then i feel cheated.
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.
killr_b
Jul 12, 04:57 PM
Yes Mulitmedia these are the same morons with too much money and too little sense , These are the same people who are saying ..ohhh why can't Conroe go into an iMac , but i want a Woodcrest , hey I don't care if Merom is Pin compatible can't they go with Conroe for it's better perfromance ..lol
What a bunch of whiny daddy's boys , no sense at all they just obey the all mighty Stevie Jobs when he lies about how the new MacPro is THE FASTEST PEECEE IN THE WORRRRLD:p
And why are you here?????
What a bunch of whiny daddy's boys , no sense at all they just obey the all mighty Stevie Jobs when he lies about how the new MacPro is THE FASTEST PEECEE IN THE WORRRRLD:p
And why are you here?????
Don't panic
Mar 14, 04:02 PM
there were actually three redundant cooling systems, but they all failed.
in honesty i think it's unfair to claim that they were unprepared, or that there were maintenance safety protocol issues.
what they went through was unprecedented, and beyond the worst case scenarios they were designed for, so if the accident is fully contained (which unfortunately seems less likely as time goes by) the whole system should be commended.
of course, this all should be a pricey lesson to e learned from, but it could have been a lot worse. a lot.
Also, i was actually positively surprised by how direct and candid the japanese gov has been, after a bit of stonewalling at the beginning. not sure the same would have happened elsewhere.
in honesty i think it's unfair to claim that they were unprepared, or that there were maintenance safety protocol issues.
what they went through was unprecedented, and beyond the worst case scenarios they were designed for, so if the accident is fully contained (which unfortunately seems less likely as time goes by) the whole system should be commended.
of course, this all should be a pricey lesson to e learned from, but it could have been a lot worse. a lot.
Also, i was actually positively surprised by how direct and candid the japanese gov has been, after a bit of stonewalling at the beginning. not sure the same would have happened elsewhere.
mdelvecchio
Apr 21, 02:37 PM
This virus talk is full of ignorance. Mac OSX is not more secure than Windows. Windows is just targeted more, because of the marketshare.
If you think that Apple writes perfect code everytime then you have no idea what you're talking about.
youre citing "security by obscurity", and its been debunked. OS X has much more marketshare than 9 did, yet has no viruses where 9 did have viruses.
UNIX is inherently more secure than windows. its how the OSes are designed that makes windows more vulnerable.
facts.
If you think that Apple writes perfect code everytime then you have no idea what you're talking about.
youre citing "security by obscurity", and its been debunked. OS X has much more marketshare than 9 did, yet has no viruses where 9 did have viruses.
UNIX is inherently more secure than windows. its how the OSes are designed that makes windows more vulnerable.
facts.
Aduntu
Apr 22, 08:36 PM
You referring to the big bang, or those reported six days?
Well, considering the six days doesn't refer to six literal days, I must be referring to the big bang.
Well, considering the six days doesn't refer to six literal days, I must be referring to the big bang.
SandynJosh
Apr 9, 02:25 PM
What's an assertation?
It's like a "revalation" without the "angals" sanging.
It's like a "revalation" without the "angals" sanging.
ReanimationLP
Oct 14, 03:38 PM
Wow, the Quad Xeon is the Pentium D all over again!
The Quad Xeon is two Dual Xeons glued together, and the Pentium D was two Pentium 4s glued together.
Its still faster than the Dual Xeons, but it isnt as good as it can be.
The Quad Xeon is two Dual Xeons glued together, and the Pentium D was two Pentium 4s glued together.
Its still faster than the Dual Xeons, but it isnt as good as it can be.
bokdol
Aug 29, 01:35 PM
i think alot of people care about the environment.. but alot of people dont care about greenpeace. in my eyes greenpeace has become a joke. i dont know mush about them but it does not seem like they do anything helpfull but to yell at the top of there lungs at people that can get them the most amount of publicity.
the way i see it is. apple is really popular in the public eye. so they become a natural target for anyone that wants their voice heard. well at least thats how i see it.
the last time i heard somethign from greenpeace was back in the 90's.
the way i see it is. apple is really popular in the public eye. so they become a natural target for anyone that wants their voice heard. well at least thats how i see it.
the last time i heard somethign from greenpeace was back in the 90's.
bpaluzzi
Apr 28, 08:49 AM
I meant "installed base" more than shipments.
Ahh. Any proof, or just making up stuff?
Ahh. Any proof, or just making up stuff?
dextertangocci
Sep 12, 04:14 PM
What is up with that price???:confused: :eek:
Is it a mistake?!?!?
It is SO cheap!
Is it a mistake?!?!?
It is SO cheap!
1tigerlivejob
May 8, 01:12 AM
there pretty reliable I had them for 5 years now
takao
Mar 13, 06:47 AM
It won't be an issue. Please refer to my previous post in this thread.
I feel like the fear mongering done by the international media is just unreal-- is everyone that uneducated?
well flooding the inner containment vessel with seawater + added boric acid is by all means an absolute last resort option in any playbook
(hardly a DIY solution: many reactors have the option and external connectors to do just that)
afterall they don't even know the situation inside because the temperature sensors aren't working anymore
also since that water can't be exchanged directly it means that they might have to cool the containment construction from the outside with additional water
obviously it won't be a disaster on the scale of chernobyl but it is already high up on the scale of disasters (6 reactors without cooling, 2 core meltdowns), it's pretty much confirmed that nuclear material has been spilled even if it was just hydrogen blowing up the external construction
it shouldn't be forgotten IMHO that a lot of radition will be spilled in the clean up progress (not only radiation: boric acid is actually quite toxic)
as a consequence the german government for example is already thinking about taking back their early decision to extend the use of their current nuclear plants
edit: according to some reports the evacuation zone was extended to 20 km
edit: don't forget that reducing the heat of a molten core might take quite some time so i wouldn't call the danger off as well: even when being cooled it still might have just enough remaining heat to melt through the bottom of the pressure chamber. i suspect we will know more in 24 hours
I feel like the fear mongering done by the international media is just unreal-- is everyone that uneducated?
well flooding the inner containment vessel with seawater + added boric acid is by all means an absolute last resort option in any playbook
(hardly a DIY solution: many reactors have the option and external connectors to do just that)
afterall they don't even know the situation inside because the temperature sensors aren't working anymore
also since that water can't be exchanged directly it means that they might have to cool the containment construction from the outside with additional water
obviously it won't be a disaster on the scale of chernobyl but it is already high up on the scale of disasters (6 reactors without cooling, 2 core meltdowns), it's pretty much confirmed that nuclear material has been spilled even if it was just hydrogen blowing up the external construction
it shouldn't be forgotten IMHO that a lot of radition will be spilled in the clean up progress (not only radiation: boric acid is actually quite toxic)
as a consequence the german government for example is already thinking about taking back their early decision to extend the use of their current nuclear plants
edit: according to some reports the evacuation zone was extended to 20 km
edit: don't forget that reducing the heat of a molten core might take quite some time so i wouldn't call the danger off as well: even when being cooled it still might have just enough remaining heat to melt through the bottom of the pressure chamber. i suspect we will know more in 24 hours
Evangelion
Jul 13, 08:55 AM
Fine - use the E6400 which is $224 in bulk or the E6600 which is $316 @ 2.6Ghz. The point is I would like an iMac without the LCD and all the other bells a whistles with a Graphics slot. If they can't do that for $1200 then Apple needs to pack up shop. Dell can do it for less than $1000 (Dual core 930 @ 3Ghz) so saying I'm willing to pay $200 in Apple tax is about as far as I'm willing to go.
930 is a netburst-CPU (P4) and those are absoluitely dirt-cheap these days, dual-core or not. Intel is basically donating them to OEM's these days. Not so with Conroe.
So Dell has a system with dirt-cheap CPU and that vaunted Dell-"designed" case for under $1000. And you are now expecting to get an Apple-system with kick-ass case and considerably more expensive CPU with just $200 extra?
That said, I would like to see a Apple minitower-system that uses the Conroe. It wont be as cheap as Dell, since whereas Dell might cut corners everywhere, Apple simply does not. Even their cheapest system (Mini for example) are very refined. Could you imagine an Apple-system that is made from cheap plastic (like this HP-system standing next to me)? I sure as hell can't.
930 is a netburst-CPU (P4) and those are absoluitely dirt-cheap these days, dual-core or not. Intel is basically donating them to OEM's these days. Not so with Conroe.
So Dell has a system with dirt-cheap CPU and that vaunted Dell-"designed" case for under $1000. And you are now expecting to get an Apple-system with kick-ass case and considerably more expensive CPU with just $200 extra?
That said, I would like to see a Apple minitower-system that uses the Conroe. It wont be as cheap as Dell, since whereas Dell might cut corners everywhere, Apple simply does not. Even their cheapest system (Mini for example) are very refined. Could you imagine an Apple-system that is made from cheap plastic (like this HP-system standing next to me)? I sure as hell can't.
I'mAMac
Aug 29, 02:34 PM
Hey, if they correct this problem and be more environmentally friendly (which I hope they do) it will be just one more reason to be a proud mac user :)
Multimedia
Oct 30, 08:20 PM
I am also of the opinion that Apple should not sell the 512MB FB-DIMM modules since they only run at half-bandwidth of the 1 and 2 GB modules. Or they should offer the ability to buy the Mac Pro with no RAM. That would be interesting. I'm not sure if they'd go for selling a system config that would require a third-party purchase just to make it work.Doubtful. What I'm hoping for is a base of two 1GB sticks, losing the two 512 sticks as you say they should end selling with this update. An 8-core Mac Pro would not run very well with only 1GB of slower RAM. I believe an 8-core Mac is going to want 8GB of RAM to run properly but I imagine 4GB would be enough for fairly decent operation. Depends on your apps. The ones I like to run don't use much RAM at all.
killr_b
Oct 25, 11:49 PM
What type of filters are you applying? Perhaps the plug-in hasn't been optimized for multiple cores.
That was with the flicker filter on max, and a minor color corection using the color corrector.
That was with the flicker filter on max, and a minor color corection using the color corrector.
munkery
May 2, 05:41 PM
What is "an installer" but an executable file and what prevents me from writing "an installer" that does more than just "installing".
My response, why bother worrying about this when the attacker can do the same thing via shellcode generated in the background by exploiting a running process so the the user is unaware that code is being executed on the system.
I don't know of any Javascript DOM manipulation that lets you have write/read access to the local filesystem. This is already sandboxed.
The scripting engine in the current Safari is not yet sandboxed.
Here is a list of Javascript vulnerabilities:
http://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=Mac+OS+X+Javascript
The issue is Safari is launching an executable file that sits outside the browser sandbox.
In the current Safari, only some plugins are sandboxed, so this wasn't execution outside the sandbox.
All that having been said, UAC has really evened the bar for Windows Vista and 7 (moreso in 7 after the usability tweaks Microsoft put in to stop people from disabling it). I see no functional security difference between the OS X authorization scheme and the Windows UAC scheme.
Except this:
Switching off or turning down UAC in Windows also equally impacts the strength of MIC (Windows sandboxing mechanism) because it functions based on inherited permissions. Unix DAC in Mac OS X functions via inherited permissions but MAC (mandatory access controls -> OS X sandbox) does not. Windows does not have a sandbox like OS X.
UAC, by default, does not use a unique identifier (password) so it is more susceptible to attacks the rely on spoofing prompts that appear to be unrelated to UAC to steal authentication. If a password is attached to authentication, these spoofed prompts fail to work.
Unix DAC is turned off in OS X in the root user account.
My response, why bother worrying about this when the attacker can do the same thing via shellcode generated in the background by exploiting a running process so the the user is unaware that code is being executed on the system.
I don't know of any Javascript DOM manipulation that lets you have write/read access to the local filesystem. This is already sandboxed.
The scripting engine in the current Safari is not yet sandboxed.
Here is a list of Javascript vulnerabilities:
http://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=Mac+OS+X+Javascript
The issue is Safari is launching an executable file that sits outside the browser sandbox.
In the current Safari, only some plugins are sandboxed, so this wasn't execution outside the sandbox.
All that having been said, UAC has really evened the bar for Windows Vista and 7 (moreso in 7 after the usability tweaks Microsoft put in to stop people from disabling it). I see no functional security difference between the OS X authorization scheme and the Windows UAC scheme.
Except this:
Switching off or turning down UAC in Windows also equally impacts the strength of MIC (Windows sandboxing mechanism) because it functions based on inherited permissions. Unix DAC in Mac OS X functions via inherited permissions but MAC (mandatory access controls -> OS X sandbox) does not. Windows does not have a sandbox like OS X.
UAC, by default, does not use a unique identifier (password) so it is more susceptible to attacks the rely on spoofing prompts that appear to be unrelated to UAC to steal authentication. If a password is attached to authentication, these spoofed prompts fail to work.
Unix DAC is turned off in OS X in the root user account.
appleguy123
Apr 22, 09:39 PM
OP, to back up your hypothesis we would need real percentages of atheists in the MacRumors community and the community at large.
Perhaps the anonymity afforded one on the internets affects how one answers (just like the 16 year old hottie is actually a 45 year old cop).
Perhaps education/enlightenment, long considered the anathema of religion, is at play.
Perhaps a younger demographic here is a factor.
But first, is there a higher percentage of atheists here?
According to the poll which I linked earlier (http://forums.macrumors.com/showthread.php?t=1055916&highlight=), about 65% of us are atheist or agnostic.
Perhaps the anonymity afforded one on the internets affects how one answers (just like the 16 year old hottie is actually a 45 year old cop).
Perhaps education/enlightenment, long considered the anathema of religion, is at play.
Perhaps a younger demographic here is a factor.
But first, is there a higher percentage of atheists here?
According to the poll which I linked earlier (http://forums.macrumors.com/showthread.php?t=1055916&highlight=), about 65% of us are atheist or agnostic.
Chupa Chupa
Oct 7, 11:22 AM
I'm not 100% sure of Garter's rationalization but it seems to be that there will be 40 different android models available (presumably on different networks). That is really the key. The equation is something like: the sum of all Android phones on multiple networks = the sum of all iPhones on ATT. However, if Apple spreads the iPhone love to Verizon when ATT rolls out LTE it changes the equation dramatically, and reduces Android to the iPhone-haters market. I have to believe Apple sees the trend and will not wait too long to let Android mature before it makes a move to squash it. Apple's just bidding its time watching the ant walk into the trap before it ambushes.
ct2k7
Oct 7, 03:27 PM
What are you guys talking about?
Didn't Adobe just show a new Flash IDE that generates native iPhone Apps ?
Didn't Adobe just show a new Flash IDE that generates native iPhone Apps ?
econgeek
Apr 12, 11:21 PM
Reading the comments about $299 being a pretty good deal truly makes me laugh. Ten years ago a system of such capacity would be > $50K and you're downplaying $299.
Grow some perspective.
This is the problem with low-low pricing. If Apple charged $40k, maybe all the "professionals" would be onboard!
I think it is great to see the simplification of the product line. FCE always seemed an odd product out.
This is the internet. People are more invested in their egos than in understanding each other, and since several people have chosen to put words in my mouth to attack me, there's no point in really trying to advocate for the product here. Let the haters have the thread, I'm out.
Grow some perspective.
This is the problem with low-low pricing. If Apple charged $40k, maybe all the "professionals" would be onboard!
I think it is great to see the simplification of the product line. FCE always seemed an odd product out.
This is the internet. People are more invested in their egos than in understanding each other, and since several people have chosen to put words in my mouth to attack me, there's no point in really trying to advocate for the product here. Let the haters have the thread, I'm out.
CalBoy
Apr 22, 08:35 PM
There are arguments and counter-arguments to both camps, which is why I choose to be agnostos. In the face of a dearth of evidence it's more rational to withhold judgment than leap to an extreme position.
In science when there is a dearth of evidence for something, you fail to reject the null hypothesis (which is that hypothesis x is incorrect).
If I wanted to make a claim about something, say that two bricks tied together will fall at the same rate as a single brick, I first have to make this my working hypothesis. The null hypothesis is that what I'm asserting is not true (in this case the null is that the bricks will fall at different rates). It's up to me to provide the evidence. If there isn't enough (or any) evidence, we fail to reject the null hypothesis.
When it comes to religion, it is the theologian who is making the claim. Thus, his working hypothesis is, "God exists." In searching for evidence, however, we come up with nothing. Thus we must fail to reject the null hypothesis, which is, "God does not exist."
Agnosticism is really the position that the an affirmative statement on the matter of deities is impossible to know. It doesn't have a rational basis in logic or science, thought it might make some people more comfortable with their skepticism.
Atheism is the position that, based on currently available evidence, there is no basis to consider any deity to be real. This could change as new evidence comes to light, of course. That is a quality you will not find in theism or agnosticism.
In science when there is a dearth of evidence for something, you fail to reject the null hypothesis (which is that hypothesis x is incorrect).
If I wanted to make a claim about something, say that two bricks tied together will fall at the same rate as a single brick, I first have to make this my working hypothesis. The null hypothesis is that what I'm asserting is not true (in this case the null is that the bricks will fall at different rates). It's up to me to provide the evidence. If there isn't enough (or any) evidence, we fail to reject the null hypothesis.
When it comes to religion, it is the theologian who is making the claim. Thus, his working hypothesis is, "God exists." In searching for evidence, however, we come up with nothing. Thus we must fail to reject the null hypothesis, which is, "God does not exist."
Agnosticism is really the position that the an affirmative statement on the matter of deities is impossible to know. It doesn't have a rational basis in logic or science, thought it might make some people more comfortable with their skepticism.
Atheism is the position that, based on currently available evidence, there is no basis to consider any deity to be real. This could change as new evidence comes to light, of course. That is a quality you will not find in theism or agnosticism.
No comments:
Post a Comment