ergle2
Sep 10, 01:41 AM
Please explain - I have no idea what "that" is....
---
Regardless of the tool, however, it is usually much better to let the OS dynamically schedule threads across the cores. Unless the programmer has some reason to try to control this, the alternative is some resources (CPUs) being overcommitted, while other CPUs are idle.
It doesn't matter who has the better tools - it's usually better to let the OS decide microsecond by microsecond how best to schedule the CPUs, than to have the developer make those decisions at edit time.
I've used the SetProcessAffinityMask APIs fairly often, but it's always been for specific test or benchmark situations. I have a hard time thinking of a situation where a general application would want to statically control the scheduler - it's just "bad think" to even try. (Except for those weird-a$$ NUMA Opterons - you can be really scr3wed if you have to go through HyperTransport to get to memory. I check NUMA topology, and use affinity to keep the AMD architecture from killing me.)
I've owned SMP machines in the past and often found it more useful to force CPU affinity of CPU-heavy tasks to a single processor, as Windows 2000 (which was current at the time) by default had a habit of swapping it between chips, resulting in a lot of cache-dirtying. I think it was the load balancing code, but it's been a while now and I don't have those machines handy currently. However, you could see some significant improvement in processing time on some non-parallelizable cpu-bound tasks.
I've no idea if MacOS does this, but at least in the case of Core 2 it shouldn't matter anywhere near as much, as the L2 is fully shared.
---
Regardless of the tool, however, it is usually much better to let the OS dynamically schedule threads across the cores. Unless the programmer has some reason to try to control this, the alternative is some resources (CPUs) being overcommitted, while other CPUs are idle.
It doesn't matter who has the better tools - it's usually better to let the OS decide microsecond by microsecond how best to schedule the CPUs, than to have the developer make those decisions at edit time.
I've used the SetProcessAffinityMask APIs fairly often, but it's always been for specific test or benchmark situations. I have a hard time thinking of a situation where a general application would want to statically control the scheduler - it's just "bad think" to even try. (Except for those weird-a$$ NUMA Opterons - you can be really scr3wed if you have to go through HyperTransport to get to memory. I check NUMA topology, and use affinity to keep the AMD architecture from killing me.)
I've owned SMP machines in the past and often found it more useful to force CPU affinity of CPU-heavy tasks to a single processor, as Windows 2000 (which was current at the time) by default had a habit of swapping it between chips, resulting in a lot of cache-dirtying. I think it was the load balancing code, but it's been a while now and I don't have those machines handy currently. However, you could see some significant improvement in processing time on some non-parallelizable cpu-bound tasks.
I've no idea if MacOS does this, but at least in the case of Core 2 it shouldn't matter anywhere near as much, as the L2 is fully shared.
balamw
Sep 19, 02:42 PM
or... any other computer you wanted to...
Or on any TV that has composite/S-video inputs with the cable or dock and aforementioned iPod....
B
Or on any TV that has composite/S-video inputs with the cable or dock and aforementioned iPod....
B
igazza
Mar 22, 11:32 PM
Build to order 6-core i7 would be nice apple
Willis
Oct 12, 05:18 PM
It looks like a more "true" red to me!
Look at the upper left portion of the picture! MBP black anodized with C2D
W00t!
keep dreaming..... no C2D!
Look at the upper left portion of the picture! MBP black anodized with C2D
W00t!
keep dreaming..... no C2D!
shecky
Aug 28, 09:25 PM
Sorry to crash the party, but it would seem a little strange for Apple to upgrade the MacBook and/or MB Pro's until sometime after the 16th when their current college promotion ends.
well, in the past they have run this promotion and released new product without adding it to the rebate. so... i guess it would not be strange, no.
Keep your mom's credit card in her purse for a few more weeks.
here is a quarter, go call your mom and let her know you are not allowed to make condescending ill-informed posts on forums anymore.
well, in the past they have run this promotion and released new product without adding it to the rebate. so... i guess it would not be strange, no.
Keep your mom's credit card in her purse for a few more weeks.
here is a quarter, go call your mom and let her know you are not allowed to make condescending ill-informed posts on forums anymore.
spicyapple
Sep 4, 03:12 PM
One more thing... iPod video projector!!! :)
roland.g
Apr 20, 10:15 AM
This is total BS. We should have been informed of this and a way to turn it off or delete the file on our own. As for the poster above who stated it only goes to your computer, I highly doubt it. This is another big brother tracking honest citizens. Hope a class action does happen. I will definitely sign on!
You need to get off the grid dude. Get rid of it all. Just disappear. Don't even write your name in your underwear. Get a fake ID under the name Topsy Krets.
You need to get off the grid dude. Get rid of it all. Just disappear. Don't even write your name in your underwear. Get a fake ID under the name Topsy Krets.
TC400
Apr 30, 01:13 PM
Still loving my 21.5 inch i3 iMac.
I am hoping it gets a chassis redesign though.
I am hoping it gets a chassis redesign though.
skwert
Sep 13, 08:58 PM
seems fairly solid. MR has always been very reserved in claims about the iphone, and this is a fairly bold article. i'd love to see it....i just think i'll be cursing my verizon contract and their damn cdma phones once it comes out.
Umbongo
Mar 23, 01:01 PM
2012... 18 month update cycle? Far, far too long. No way... If that's the case, for the first time in 27 years, Apple doesn't get my money.
August 2006
January 2008 - 17 months later
March 2009 - 14 months later
July 2010 - 16 months later
While spring is possible the processors are to be launched in Q4. It is more likely to be under 18 months, but there is nothing out of the ordinary. Only the 2010 models seemed to be on Apple's time line rather than Intels.
Of course, part of the reason why people are hesitant to buy them is because they are the last to be updated... even though they are the most expensive product Apple has.
They have actually been the first to be updated for most of the time because Intel launched new technology on these platforms first. First to get 65nm Core 2 processor technology, first to get 45nm Penryn Core 2, first to get Nehalem (Core i5/i7). If Apple had updated on time in 2010 they'd have been first then to get Westmere (Apple released 4 months after the processor launch). Intel have changed their release schedule from enthusiast and Enterprise coming first with the move to Sandy Bridge, mostly because the benefits are more to the mobile market due to power savings.
August 2006
January 2008 - 17 months later
March 2009 - 14 months later
July 2010 - 16 months later
While spring is possible the processors are to be launched in Q4. It is more likely to be under 18 months, but there is nothing out of the ordinary. Only the 2010 models seemed to be on Apple's time line rather than Intels.
Of course, part of the reason why people are hesitant to buy them is because they are the last to be updated... even though they are the most expensive product Apple has.
They have actually been the first to be updated for most of the time because Intel launched new technology on these platforms first. First to get 65nm Core 2 processor technology, first to get 45nm Penryn Core 2, first to get Nehalem (Core i5/i7). If Apple had updated on time in 2010 they'd have been first then to get Westmere (Apple released 4 months after the processor launch). Intel have changed their release schedule from enthusiast and Enterprise coming first with the move to Sandy Bridge, mostly because the benefits are more to the mobile market due to power savings.
dime21
Apr 19, 11:21 AM
Apple HAS to file a lawsuit in this case.
If they did not, then they open the door to not being able to protect their assets in court down the road if someone else tries to copy anything Apple offers.
Non-issue here people. Just playing by the rules of the game.
actually, this is true. at least in the US, if you fail to defend your copyrights or trademarks in court, that constitutes abandonment of said copyrights and trademarks, which then legally entitles anyone to freely use them. so yes, apple is required to sue anyone who makes a suspiciously similar looking product.
If they did not, then they open the door to not being able to protect their assets in court down the road if someone else tries to copy anything Apple offers.
Non-issue here people. Just playing by the rules of the game.
actually, this is true. at least in the US, if you fail to defend your copyrights or trademarks in court, that constitutes abandonment of said copyrights and trademarks, which then legally entitles anyone to freely use them. so yes, apple is required to sue anyone who makes a suspiciously similar looking product.
asdf542
Apr 22, 11:58 AM
Now there's 100GB BDXL. There's plenty of time for Blu-Ray to keep on living on notebooks.
Err... and how is that relevant? I'm sure Blu-Ray will live on in other notebooks, but Apple's? Unlikely.
There were 100GB BDXL when Apple refreshed the MacBook Pro's this year.
Err... and how is that relevant? I'm sure Blu-Ray will live on in other notebooks, but Apple's? Unlikely.
There were 100GB BDXL when Apple refreshed the MacBook Pro's this year.
AidenShaw
Sep 10, 11:19 PM
However, I was disappointed to learn that the 2nd processor could be only be used for little more than a coprocessor. So, I did some reading about the relationship of the Bus design, processor architecture and the OS. It made me appreciate Sparc a lot more.
Were you reading propaganda from Sun, or something from an unbiased source?
The P6 systems that you're talking about in the mid '90s were very similar in architecture to today's Intel systems.
The P6 systems had a shared FSB, so memory bandwidth was shared by the two processors. The SPARC systems usually had a crossbar switch, so that in theory each CPU had a private memory path. (The Woodcrest systems have an FSB per socket, to a shared memory controller.)
While the crossbar really shined when you had 32, 64 or more processors with many, many GiB of RAM - for a dual CPU system it really wasn't worth the cost.
Woodcrest, the PPC G5, and AMD aren't using crossbar memory controllers today....
Were you reading propaganda from Sun, or something from an unbiased source?
The P6 systems that you're talking about in the mid '90s were very similar in architecture to today's Intel systems.
The P6 systems had a shared FSB, so memory bandwidth was shared by the two processors. The SPARC systems usually had a crossbar switch, so that in theory each CPU had a private memory path. (The Woodcrest systems have an FSB per socket, to a shared memory controller.)
While the crossbar really shined when you had 32, 64 or more processors with many, many GiB of RAM - for a dual CPU system it really wasn't worth the cost.
Woodcrest, the PPC G5, and AMD aren't using crossbar memory controllers today....
kwajo.com
Sep 14, 09:16 AM
New version of Aperture!.. Saweeet
or more likely a new Apple iSLR
16 Megapixels
full frame sensor
Adaptive lens mount supports all Canon and Nikon Lenses
60gb removeable 1.8" hard drive
3" OLED screen
Anti-Dust
Anti-shake
Shoots in a new Apple RAW format
eye tracking for focus
Spot metering
1/8000 shutter with 150,000 shutter life
Full weather sealing
Magnesium body
6fps (up to 25 raw frames)
Depth of Field Preview
Pop up flash
802.11 Wifi
GPS built in
Optional Battery Grip
Scrollwheel navigation for menu system
Apple iScreen Digital Image processor
64 Segment Metering and Spot Metering
Supports Compact Flash
What kind of crappy camera doesn't use Pentax lenses? Apple would really be dropping the ball here. ;)
or more likely a new Apple iSLR
16 Megapixels
full frame sensor
Adaptive lens mount supports all Canon and Nikon Lenses
60gb removeable 1.8" hard drive
3" OLED screen
Anti-Dust
Anti-shake
Shoots in a new Apple RAW format
eye tracking for focus
Spot metering
1/8000 shutter with 150,000 shutter life
Full weather sealing
Magnesium body
6fps (up to 25 raw frames)
Depth of Field Preview
Pop up flash
802.11 Wifi
GPS built in
Optional Battery Grip
Scrollwheel navigation for menu system
Apple iScreen Digital Image processor
64 Segment Metering and Spot Metering
Supports Compact Flash
What kind of crappy camera doesn't use Pentax lenses? Apple would really be dropping the ball here. ;)
macfan70
Sep 5, 02:42 PM
Well, what ever comes out, I hope it's not some upgrade or revamp. I wish Apple really does Think Different and releases new hardware that will make us say " That really is something new. "
But, updates are always welcome.;)
But, updates are always welcome.;)
FinderUser213
Mar 29, 03:08 PM
UHM... iOS is far more open-source than windows is. Nice try... Android might be more open-source though, I'm not sure.
You are 100% right; OS X/iOS are much more opensource than windows. I wasn't talking about Windows though.
And android is FULLY opensource :)
You are 100% right; OS X/iOS are much more opensource than windows. I wasn't talking about Windows though.
And android is FULLY opensource :)
SolarJ
Mar 23, 09:35 AM
It's hard to believe it's been almost three years since my first mac, definitely time for an upgrade as I am using parallels v.6 for Auto-cad inventor and even the 6 GB of RAM is keeping it slow.
I really hope the 24" is re-released. It is the perfect size and plus I have a Samsung Syncmaster 24" display that I don't want to dwarf. :D:D:D
I really hope the 24" is re-released. It is the perfect size and plus I have a Samsung Syncmaster 24" display that I don't want to dwarf. :D:D:D
emaja
Apr 22, 03:38 AM
This would be a really cool thing if they allow you to stream to your iPhone and use it with an iPhone compatible head unit in your car. That way I could carry some music on my iPhone for listening in the car and if I got bored with what I had or just wanted something different, I could stream from this cloud-based service.
There are a few head units that allow you to stream Pandora from your iPhone through your car stereo. Why not have your whole library like that?
There are a few head units that allow you to stream Pandora from your iPhone through your car stereo. Why not have your whole library like that?
Chaos215bar2
Apr 25, 01:13 PM
What about the screen? Are they finally moving to 16:9 screens?
Hopefully not! I never understood the obsession with 16:9. Do you really spend so much time watching TV shows on your computer that you'd rather sacrifice vertical resolution, which is what's most important for viewing any kind of document, to avoid letterboxing. It's not even going to make much of a difference with movies, since they are almost always wider than 16:9.
Hopefully not! I never understood the obsession with 16:9. Do you really spend so much time watching TV shows on your computer that you'd rather sacrifice vertical resolution, which is what's most important for viewing any kind of document, to avoid letterboxing. It's not even going to make much of a difference with movies, since they are almost always wider than 16:9.
Dr.Gargoyle
Sep 5, 01:21 PM
An iTunes Movie service has been a definite since the big data centre was built a few months ago imo.
It was bought...
It was bought...
ArcaneDevice
Mar 23, 04:40 PM
Besides...who the h*ll is the government to tell Apple what they can and cannot do with their business? Regulations are one thing...such as safety regs and such...those are needed, but Christ...this is over the line.
The government tells Apple what they can and can't do all the time. That's why Jobs gets deposed, the FCC regulate their cell phones and Apple can't knock down your house to build an Apple Store on top of it or irradiate small Chinese kids to make the products for it.
If thousands can ask Apple to take down an anti-gay app then why not a few officials asking them to take down an app that gives drunken dicks an advantage?
If it was just 150,000 regular people asking Apple to take it down (MADD for example) would you have a problem with it?
The government tells Apple what they can and can't do all the time. That's why Jobs gets deposed, the FCC regulate their cell phones and Apple can't knock down your house to build an Apple Store on top of it or irradiate small Chinese kids to make the products for it.
If thousands can ask Apple to take down an anti-gay app then why not a few officials asking them to take down an app that gives drunken dicks an advantage?
If it was just 150,000 regular people asking Apple to take it down (MADD for example) would you have a problem with it?
flopticalcube
Apr 19, 11:00 PM
No, I truly hate that place.. and all it stands for.
Not you, the poster you were quoting was being sarcastic. I was drawing your attention to his sarcasism.
Not you, the poster you were quoting was being sarcastic. I was drawing your attention to his sarcasism.
Mr. Gates
Mar 23, 04:44 PM
Looks like I have a new $#!T List
iLucas
Apr 30, 01:10 PM
Finally!