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.
Josias
Sep 14, 09:45 AM
My prediction:
Definiantly:
Aperture 2.0 ($299)
MacBook Pro:
2 15" and 1 17" model with 2.16 and 2.33 GHz Merom
1 GB RAM standdard, up to 3 or 4 GB
100 and 120 GB HDD's, up to 160 GB
8x DVD+/-RW DL drives for all
X1600 Pro in low-end 15" and X1800 Pro/XT in hi-end 15" and 17"
FW800 on all models
Magnetic latch (no integrated keyboard)
Expresscard/54 slot on all models
$1899 - $2299 - $2499
Maybe:
iPhone with 3.2 mpx camera by Canon
New displays
PowerBook G5
Unikely:
802.11 n (in MacPro and MacBook Pro)
New iSight with IR reciever
MacBook
Definiantly:
Aperture 2.0 ($299)
MacBook Pro:
2 15" and 1 17" model with 2.16 and 2.33 GHz Merom
1 GB RAM standdard, up to 3 or 4 GB
100 and 120 GB HDD's, up to 160 GB
8x DVD+/-RW DL drives for all
X1600 Pro in low-end 15" and X1800 Pro/XT in hi-end 15" and 17"
FW800 on all models
Magnetic latch (no integrated keyboard)
Expresscard/54 slot on all models
$1899 - $2299 - $2499
Maybe:
iPhone with 3.2 mpx camera by Canon
New displays
PowerBook G5
Unikely:
802.11 n (in MacPro and MacBook Pro)
New iSight with IR reciever
MacBook
GRuizMD
Mar 23, 06:21 PM
Pull them... As trauma surgeon I see the tragedies caused by drunk drivers EVERY Day. Whoever is on agreement to provide means to avoid check points is invited to my local trauma center to see the victims and their families. If we can save one life, one innocent student or parent, even someone who made the mistake of drinking and driving... I would consider this worth.
Besides, the cost of taking care of those who do not die, but spend weeks months or years in the hospital due to a drinking related accident is enormous.
Speed radars are another big issue. In my state, its ok to refuse a helmet while driving a donor-cycle, as we call them, yesterday alone, we lost one kid who is waiting for transplant procurement and half a dozen were admitted with severe injuries most of them traumatic brain injuries while driving motorcycles.
Besides, the cost of taking care of those who do not die, but spend weeks months or years in the hospital due to a drinking related accident is enormous.
Speed radars are another big issue. In my state, its ok to refuse a helmet while driving a donor-cycle, as we call them, yesterday alone, we lost one kid who is waiting for transplant procurement and half a dozen were admitted with severe injuries most of them traumatic brain injuries while driving motorcycles.
Aldaris
Mar 22, 02:32 PM
I think you'll find that rumors of the Mac Pro's death are greatly exaggerated.
Thunderbolt honestly wouldn't bring very much to a Mac Pro right now. They have access via PCI expansion to drives, etc. that keep pace with and even beat Thunderbolt in some instances. As the tech matures it will outpace others and eventually find its way to the Mac Pro. Yes, the iMacs, and the iToys get more and more powerful with every generation...but then, so do the Pros...they all have a space on Apple's buffet bar.
I agree, I think it'll be great for the portable's and consumer items, to be able to customize certain peripherals to the individual needs, at the moment I have a PowerBook G4, MacBook Pro, Power Mac G4, Power Mac G5, all for certain tasks, I could solve all this with a thunderbolt equipped MacBook pro and Mini... Think of the space saving's there...
The Pro will be around for a lot longer, it just serves a Pro/sumer market, the processors they sport generally come later down the pipe anyway like sandy bridge xeons in Q3/Q4.
Thunderbolt honestly wouldn't bring very much to a Mac Pro right now. They have access via PCI expansion to drives, etc. that keep pace with and even beat Thunderbolt in some instances. As the tech matures it will outpace others and eventually find its way to the Mac Pro. Yes, the iMacs, and the iToys get more and more powerful with every generation...but then, so do the Pros...they all have a space on Apple's buffet bar.
I agree, I think it'll be great for the portable's and consumer items, to be able to customize certain peripherals to the individual needs, at the moment I have a PowerBook G4, MacBook Pro, Power Mac G4, Power Mac G5, all for certain tasks, I could solve all this with a thunderbolt equipped MacBook pro and Mini... Think of the space saving's there...
The Pro will be around for a lot longer, it just serves a Pro/sumer market, the processors they sport generally come later down the pipe anyway like sandy bridge xeons in Q3/Q4.
radcity
Apr 23, 09:24 PM
i picked up a 13" air loaded about a month ago. I know the rumors about sandybridge would be out. But after the 13" pro's were screen neutered I sat down and decided that despite all the 'pro' level work I do an air would be fine. I was right and don't regret my purchase one bit. something new will always come out anyway.
completely agree
completely agree
eye
Mar 23, 06:25 PM
Pull them... As trauma surgeon I see the tragedies caused by drunk drivers EVERY Day. Whoever is on agreement to provide means to avoid check points is invited to my local trauma center to see the victims and their families. If we can save one life, one innocent student or parent, even someone who made the mistake of drinking and driving... I would consider this worth.
Besides, the cost of taking care of those who do not die, but spend weeks months or years in the hospital due to a drinking related accident is enormous.
Speed radars are another big issue. In my state, its ok to refuse a helmet while driving a donor-cycle, as we call them, yesterday alone, we lost one kid who is waiting for transplant procurement and half a dozen were admitted with severe injuries most of them traumatic brain injuries while driving motorcycles.
And what if the apps encourage people to not drink and and drive? You're basing this on nothing. No facts whatsoever on whether or not this will promote or make drunk driving easier. Please don't be my surgeon if you're not into facts.
Besides, the cost of taking care of those who do not die, but spend weeks months or years in the hospital due to a drinking related accident is enormous.
Speed radars are another big issue. In my state, its ok to refuse a helmet while driving a donor-cycle, as we call them, yesterday alone, we lost one kid who is waiting for transplant procurement and half a dozen were admitted with severe injuries most of them traumatic brain injuries while driving motorcycles.
And what if the apps encourage people to not drink and and drive? You're basing this on nothing. No facts whatsoever on whether or not this will promote or make drunk driving easier. Please don't be my surgeon if you're not into facts.
Vegasman
Mar 30, 01:46 PM
So, here is an interesting argument, as app is short for Applications, and Applications are a strict subset of programs, doesn't the App Store technically sell Programs, not Apps? Thus, the term is no generic at all. "Program Store" would the generic term. It's the same as a club called "Liqueur Store" (which is TMed.)
Interesting indeed. But i would argue that app, application and program are all equally interchangeable.
A club can call itself "Liqueur Store" all it wants. It is not a store that sells liqueur. It's a club that sells liqueur.
Interesting indeed. But i would argue that app, application and program are all equally interchangeable.
A club can call itself "Liqueur Store" all it wants. It is not a store that sells liqueur. It's a club that sells liqueur.
holycat
Sep 14, 08:21 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
if this is the case...i would rob the bank...to buy that new iCamera!:D :D :D :D :D :D
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
if this is the case...i would rob the bank...to buy that new iCamera!:D :D :D :D :D :D
Number 41
Dec 30, 09:55 AM
At least be honest with the headline:
McAfee Hopes 2011 Brings Reason for iUsers to own McAfeee Products
McAfee Hopes 2011 Brings Reason for iUsers to own McAfeee Products
Josias
Sep 14, 09:45 AM
My prediction:
Definiantly:
Aperture 2.0 ($299)
MacBook Pro:
2 15" and 1 17" model with 2.16 and 2.33 GHz Merom
1 GB RAM standdard, up to 3 or 4 GB
100 and 120 GB HDD's, up to 160 GB
8x DVD+/-RW DL drives for all
X1600 Pro in low-end 15" and X1800 Pro/XT in hi-end 15" and 17"
FW800 on all models
Magnetic latch (no integrated keyboard)
Expresscard/54 slot on all models
$1899 - $2299 - $2499
Maybe:
iPhone with 3.2 mpx camera by Canon
New displays
PowerBook G5
Unikely:
802.11 n (in MacPro and MacBook Pro)
New iSight with IR reciever
MacBook
Definiantly:
Aperture 2.0 ($299)
MacBook Pro:
2 15" and 1 17" model with 2.16 and 2.33 GHz Merom
1 GB RAM standdard, up to 3 or 4 GB
100 and 120 GB HDD's, up to 160 GB
8x DVD+/-RW DL drives for all
X1600 Pro in low-end 15" and X1800 Pro/XT in hi-end 15" and 17"
FW800 on all models
Magnetic latch (no integrated keyboard)
Expresscard/54 slot on all models
$1899 - $2299 - $2499
Maybe:
iPhone with 3.2 mpx camera by Canon
New displays
PowerBook G5
Unikely:
802.11 n (in MacPro and MacBook Pro)
New iSight with IR reciever
MacBook
Vegasman
Mar 29, 12:24 PM
All of you W7 humpers please try and "snap" two excel or word files next to each other. Oh that right you cant, because heaven forbid I would want to do that and work simultaneous on two MS office files.
Uh!?
Uh!?
pengu
Sep 17, 07:36 PM
plus unlimited incoming minutes from anyone.
OK. hang on. back the f&6king truck up.
maybe we're backwards here. but i have NEVER, EVER heard of ANY kind of phone service where INCOMING calls are anything BUT free (excluding reverse-charge, obviously).
Im sorry, but if you all accept crappy CDMA phones specific to a carrier, and paying for incoming calls, you are kidding yourself if you think you are anything but backwards. (i wont go into the whole metric thing :P )
OK. hang on. back the f&6king truck up.
maybe we're backwards here. but i have NEVER, EVER heard of ANY kind of phone service where INCOMING calls are anything BUT free (excluding reverse-charge, obviously).
Im sorry, but if you all accept crappy CDMA phones specific to a carrier, and paying for incoming calls, you are kidding yourself if you think you are anything but backwards. (i wont go into the whole metric thing :P )
MrNomNoms
Apr 29, 06:17 AM
Three points:
1) Microsoft is primarily a software that is transitioning from a two trick pony into a diverse company addressing many areas - such diversification will take years to occur but to write Microsoft off at this stage is simply being stupid (as some have done on other forums out there on the internet).
2) Apple is stretched too thinly with the latest font fiasco being one of many fiascos; from the design defects in MacBook Pro's generation after generation to the design defect in the iPhone 4, the constant bugs appearing and made worse in each release and update of Mac OS X. Then there is the mountain of bugs in iOS with phones being dropped in terms of support asap and bugs once again not being fixed. Sooner or later people are going to catch onto the fact that Apple isn't dedicating the resources to their products and it'll come back to bite them in the ass. Apple is on a winning streak but remember that these winning streaks can't last forever.
3) Lion appears to be yet another example of a rushed job by Apple where once again a mountain of bugs are introduced, old bugs aren't being fixed promptly, promises but failure to deliver, new features but old hardware unsupported even though the actual hardware itself supports the said features (OpenGL 3.x support being one example of that). Again, sooner or later people are going to hook onto the fact that once again Apple ships yet another half baked operating system that'll require minimum 2-3 combo updates just to make it useful not only for end users but also for third party vendors to write their applications against.
Cheer all you want but there are genuine issues that need resolving by Apple but I don't see it happening any time soon. As for me, I am holding off till the end of this year to decide whether I stick with Mac's or whether I head over to the Windows world. If they can't even design a 17 MacBook Pro correctly then I don't hold out much hope that Lion isn't a complete clusterf-ck.
Edit: For WP7 haters, I suggest you actually use one before judging it. Microsoft is like Intel, a large company that takes a while for the ship to be turned around - anyone who remembers the P4 fiasco should remember how long it took for them to get back on track again. Microsoft is in the same situation, it will take at least 1-2 years to get back on track and by that time Microsoft will have a product for the tablet that'll be running Windows and Microsoft Office. People may boohoo Microsoft but when push comes to shove the big corporates will be wetting their pants with delight when they see a tablet running Microsoft Office.
1) Microsoft is primarily a software that is transitioning from a two trick pony into a diverse company addressing many areas - such diversification will take years to occur but to write Microsoft off at this stage is simply being stupid (as some have done on other forums out there on the internet).
2) Apple is stretched too thinly with the latest font fiasco being one of many fiascos; from the design defects in MacBook Pro's generation after generation to the design defect in the iPhone 4, the constant bugs appearing and made worse in each release and update of Mac OS X. Then there is the mountain of bugs in iOS with phones being dropped in terms of support asap and bugs once again not being fixed. Sooner or later people are going to catch onto the fact that Apple isn't dedicating the resources to their products and it'll come back to bite them in the ass. Apple is on a winning streak but remember that these winning streaks can't last forever.
3) Lion appears to be yet another example of a rushed job by Apple where once again a mountain of bugs are introduced, old bugs aren't being fixed promptly, promises but failure to deliver, new features but old hardware unsupported even though the actual hardware itself supports the said features (OpenGL 3.x support being one example of that). Again, sooner or later people are going to hook onto the fact that once again Apple ships yet another half baked operating system that'll require minimum 2-3 combo updates just to make it useful not only for end users but also for third party vendors to write their applications against.
Cheer all you want but there are genuine issues that need resolving by Apple but I don't see it happening any time soon. As for me, I am holding off till the end of this year to decide whether I stick with Mac's or whether I head over to the Windows world. If they can't even design a 17 MacBook Pro correctly then I don't hold out much hope that Lion isn't a complete clusterf-ck.
Edit: For WP7 haters, I suggest you actually use one before judging it. Microsoft is like Intel, a large company that takes a while for the ship to be turned around - anyone who remembers the P4 fiasco should remember how long it took for them to get back on track again. Microsoft is in the same situation, it will take at least 1-2 years to get back on track and by that time Microsoft will have a product for the tablet that'll be running Windows and Microsoft Office. People may boohoo Microsoft but when push comes to shove the big corporates will be wetting their pants with delight when they see a tablet running Microsoft Office.
TechNut315
Mar 23, 04:43 AM
This is hardly a rumour, more just pointing out the obvious. What I want is
Likely:
� SB i5 quad processor in the 21�
� Thunderbolt
� GPU upgrade (although I would like something at least as powerful as 5770)
Unlikely
� 2 HDs standard, 1 x 64GB SSD, 1 x 1TB HD availabe for 21"
� 2560 x 1440 resolution available for 21�
� Blu-ray
Think the design will be the same, this time around. Re-design next time with Lion pre-installed and maybe, just maybe a touch screen
Likely:
� SB i5 quad processor in the 21�
� Thunderbolt
� GPU upgrade (although I would like something at least as powerful as 5770)
Unlikely
� 2 HDs standard, 1 x 64GB SSD, 1 x 1TB HD availabe for 21"
� 2560 x 1440 resolution available for 21�
� Blu-ray
Think the design will be the same, this time around. Re-design next time with Lion pre-installed and maybe, just maybe a touch screen
Vol7ron
Apr 4, 12:35 PM
this is crazy....we as a society have become too politically correct. Someone breaks into your house and gets injured, he can sue you for injuries....you trip and fall on a slippery surface in a mall or restaurant, you can sue, despite the clear sign that says, "caution, slippery surface", Or the famous one, suing because your cup of coffee was hot and you spilled it on yourself. My goodness....Here we have a robbery attempt. The robbers were armed. Now this private security guard see's what is happening, and steps in to stop them. What is he suppose to do, pretend to be like Obama and try to open up negotiations with them? "please robbers, stop what you are doing, it is against the law?" Meanwhile, the robbers are shooting at him...So what if a robber got shot in the head. It is one less criminal to deal with. And what is to say that he was aiming for his head? It might have just been a lucky shot. Will he have to live with that? Of course, but at the end of the day, he was just doing his job. It would be like joining the military not expecting to ever go to war or see combat...
duervo
Mar 23, 06:12 PM
I wonder how many who posted here in favor of removing these apps, are also supporters of wikileaks? i'm sure it's a significant number. how ironic.
How about you duervo, you a wikileaks fan? hmm?
The true irony here is your blatant assumption that is based on nothing more than a "gut feeling".
How about you duervo, you a wikileaks fan? hmm?
The true irony here is your blatant assumption that is based on nothing more than a "gut feeling".
DavidLeblond
Sep 1, 11:38 AM
That would certainly change my mind about getting a 20" iMac. ;)
EDIT: Anyone care to speculate on prices?
EDIT: Anyone care to speculate on prices?
MacinDoc
Sep 11, 12:34 AM
Have you seen the benchmarks?
The Xeon systems scream, even with the "slow" memory.
While some contrived tests showed real latency issues with the FB-DIMM memory, for real-life applications the faster busses and large L2 caches make it a non-issue.
Focus on *system* performance, not on a particular detail.
Aiden, it's just not like you to make a statement like this without adding the links...
The Xeon systems scream, even with the "slow" memory.
While some contrived tests showed real latency issues with the FB-DIMM memory, for real-life applications the faster busses and large L2 caches make it a non-issue.
Focus on *system* performance, not on a particular detail.
Aiden, it's just not like you to make a statement like this without adding the links...
deannnnn
Mar 29, 11:13 AM
Wirelessly posted (iPhone 3GS: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5)
lol. good one.
lol. good one.
Bern
Aug 23, 05:14 PM
Well for a company that's almost bankrupt I guess this was a worthwhile event for them. Now Creative can continue to make "adapted copies" of the iPod and lose money all over again.
Judging by their past business practices it's only a matter of time before they teeter on the edge of insolvency then I guess they'll have to come up with another reason to sue Apple all over again.
Judging by their past business practices it's only a matter of time before they teeter on the edge of insolvency then I guess they'll have to come up with another reason to sue Apple all over again.
aiqw9182
Apr 25, 02:55 PM
Please :rolleyes:
Do you mean they lack the power or that its not a selectable option? They have the power, have had it for years. Dual 2560x1600 screen setups off one graphics card is easily attainable.
Then show me a single modern GPU displaying more than 2560x1600 on a single display. I'd love to see it.
Do you mean they lack the power or that its not a selectable option? They have the power, have had it for years. Dual 2560x1600 screen setups off one graphics card is easily attainable.
Then show me a single modern GPU displaying more than 2560x1600 on a single display. I'd love to see it.
balamw
Sep 19, 02:02 PM
It took my Black MB about 70 mins to download "Deuce Bigalow". This was over a decent but not great motel WiFi setup, and I was downloading some other stuff for about half the time.
You were downloading Deuce Bigelow in 1080p, or in 640x480 from iTMS?
Sounds more like 640x480. So by extrapolation 1080p which has 6.75 as many pixels would be somewhere like 2.5-6 times as long to download. i.e. it could take up to 7 hours to download.
B
You were downloading Deuce Bigelow in 1080p, or in 640x480 from iTMS?
Sounds more like 640x480. So by extrapolation 1080p which has 6.75 as many pixels would be somewhere like 2.5-6 times as long to download. i.e. it could take up to 7 hours to download.
B
bchreng
May 1, 01:23 AM
Curious that everyone is clamoring for a thunderbolt-enabled machine, but there isn't a single thunderbolt drive available on the market.
I guess some people just need to feel like they have new stuff even if it's totally pointless.
Some people - like me - may not own a mac desktop yet and would like to purchase one soon and intend on using it for quite a while. So while there may be no devices at the moment, there could very well be such a device released next year or the year after. When it is released we'll be glad that our iMacs have the port. It's not exactly like a pc where we can open up the case and add in the port later on.
I guess some people just need to feel like they have new stuff even if it's totally pointless.
Some people - like me - may not own a mac desktop yet and would like to purchase one soon and intend on using it for quite a while. So while there may be no devices at the moment, there could very well be such a device released next year or the year after. When it is released we'll be glad that our iMacs have the port. It's not exactly like a pc where we can open up the case and add in the port later on.
Vegasman
Mar 30, 01:46 PM
So, here is an interesting argument, as app is short for Applications, and Applications are a strict subset of programs, doesn't the App Store technically sell Programs, not Apps? Thus, the term is no generic at all. "Program Store" would the generic term. It's the same as a club called "Liqueur Store" (which is TMed.)
Interesting indeed. But i would argue that app, application and program are all equally interchangeable.
A club can call itself "Liqueur Store" all it wants. It is not a store that sells liqueur. It's a club that sells liqueur.
Interesting indeed. But i would argue that app, application and program are all equally interchangeable.
A club can call itself "Liqueur Store" all it wants. It is not a store that sells liqueur. It's a club that sells liqueur.