Habakuk
Apr 15, 10:10 AM
So basically, fat kids deserve to be bullied! Crying themselves to sleep every night is sure to burn extra calories. We should give the bullies a medal for helping reduce our public health care costs.
But hands off the gays!
No. What I wanted to say is that fat persons CAN do something against their condition, but homosexuals can't. Obviously. So they deserve such actions like It Gets Better more than fat people. In my honest opinion.
But hands off the gays!
No. What I wanted to say is that fat persons CAN do something against their condition, but homosexuals can't. Obviously. So they deserve such actions like It Gets Better more than fat people. In my honest opinion.
writingdevil
Apr 13, 05:23 AM
many of these are from non full time editors if you read posts over time..and if you follow the site, the usual suspects pick up on part of somebody else's post, try to put a twist on it, and post it without having real understanding of the heart of the topic. we started on avid in first project in film school through four years of filmmaking, then onto feature jobs, and this system rocks. murch, coen bros, coppola, lots of features using fcp and endorse it totally. people in my pops generation started on other systems and somewhere along the way, jus got tired of learning new tech, although they're still damn good editors.
winmacguy
Mar 18, 02:17 PM
It's a great convenience until the RIAA gets pissed and either changes their mind about downloadable music or tells Apple to hike their prices.
We shouldn't worry though, Apple will defeat this in no time.
Maybe some big company should tell the greedy money grubbing RIAA to "go jump in the Lake" and just leave things how they are instead of trying to change Apples DRM and create even more restrictions to what you can do with legally purchased music. Maybe if the greedy money grubbing RIAA looked at changeing its business model to bring it inline with the newer digital age it might find some better way of doing things. After all there is NO evidence that file sharing kills music and CD sales.
What the evidence actually tells us is file sharers are downloading singles which the music industry doesnt cater for so they get the impression that they are losing sales.
Hmmmm methinks that maybe the RIAA needs to adjust its buiness model to meet the changing music environment rather than change the business environment to keep with its outdated business model.
Cheers Winmacguy
PS I was aware as mentioned in the article that in Apple's case you still have to purchase the music before you can strip the DRM from it unlike Napsters music which you onliy have to pay $15 for as much as you can eat!
We shouldn't worry though, Apple will defeat this in no time.
Maybe some big company should tell the greedy money grubbing RIAA to "go jump in the Lake" and just leave things how they are instead of trying to change Apples DRM and create even more restrictions to what you can do with legally purchased music. Maybe if the greedy money grubbing RIAA looked at changeing its business model to bring it inline with the newer digital age it might find some better way of doing things. After all there is NO evidence that file sharing kills music and CD sales.
What the evidence actually tells us is file sharers are downloading singles which the music industry doesnt cater for so they get the impression that they are losing sales.
Hmmmm methinks that maybe the RIAA needs to adjust its buiness model to meet the changing music environment rather than change the business environment to keep with its outdated business model.
Cheers Winmacguy
PS I was aware as mentioned in the article that in Apple's case you still have to purchase the music before you can strip the DRM from it unlike Napsters music which you onliy have to pay $15 for as much as you can eat!
charliehustle
Feb 27, 08:56 PM
It's a bit rich calling people delusional and then coming out with with wish list statements as if they're bound in volumes of 'The Future History of Smartphones vol ll'
The Android market has potential, but only for as long as lazy phone manufacturers, who have never learned how to do operating systems and software, are happy to grab a freebie. This situation is the same as you or me going to a fair and picking up a free dev copy of some new software... and then running a business off its capabilities. No license fee! That's the attraction.
The saved costs derived from having much lower in-house dev costs and shorter route to market make Android a gift. But not without major issues. CylonGlitch [above] makes this very valid point:
"... as many as 40 models of Android devices will ship, . . . "
"How the heck is a developer supposed to support that many different devices? Even if there were 5 different screen resolutions, it would be hard to optimize your app for each. Now different RAM configurations, different CPU's, different everything, OUCH."
It's a ludicrous state of affairs. A wet dream for the armchair geek maybe, but for the non geek buyer, the proposition is entirely different. It already gives me a headache just thinking about it.
With the iPhone, Apple have demonstrated one of the oldest marketing principles still holds true in the 21st Century. If you give people three models to choose from with two colour options, you make the proposition simpler.
But all other manufacturers are still depending on the old marketing model of offering a bewildering array of models to try and catch the entire market. Now, that model has failed already - because it doesn't work. The market is automatically diluted. So why are they still using it?
speedriff [also above] has decided Steve Jobs is a "douche" because he's being "hardheaded" over Flash, while "Other manufacturers are giving AMOLED screens and are getting better and better."
Apple make more profit from all their products than anyone else. One way they do this is by waiting until they can demand a very high proportion of a large enough production of a component [NAND flash memory, screens etc] at the most competitive price, or can manufacture in-house [CPUs]. That's not just good business, it's vital for long term survival.
Wait until June this year and we'll see the new iPhone with a longer [HD aspect ratio] OLED screen. And HTML5 is the future. in reality, Adobe are better candidates for the 'douche' epithet here. If Flash had fewer issues, maybe Apple would add it.
What you need to understand is that Apple is better at seeing, predicting and exploiting the WHOLE picture, than any other company in this game. And anyone who seriously thinks a disparate group of not for profit developers and a market full of lazy manufacturers with a 19th Century sales mentality are going to win this one, is simply not even looking at it properly.
You obviously have no formal education when it comes to the world of finance, so I'm not sure why you're even making comments about such things.
The simple fact that Apple has to make $23 billion more in revenue compared to Google, just so they can have $2.7 billion more in gross profit is nothing to brag about.
Go do more homework.
The Android market has potential, but only for as long as lazy phone manufacturers, who have never learned how to do operating systems and software, are happy to grab a freebie. This situation is the same as you or me going to a fair and picking up a free dev copy of some new software... and then running a business off its capabilities. No license fee! That's the attraction.
The saved costs derived from having much lower in-house dev costs and shorter route to market make Android a gift. But not without major issues. CylonGlitch [above] makes this very valid point:
"... as many as 40 models of Android devices will ship, . . . "
"How the heck is a developer supposed to support that many different devices? Even if there were 5 different screen resolutions, it would be hard to optimize your app for each. Now different RAM configurations, different CPU's, different everything, OUCH."
It's a ludicrous state of affairs. A wet dream for the armchair geek maybe, but for the non geek buyer, the proposition is entirely different. It already gives me a headache just thinking about it.
With the iPhone, Apple have demonstrated one of the oldest marketing principles still holds true in the 21st Century. If you give people three models to choose from with two colour options, you make the proposition simpler.
But all other manufacturers are still depending on the old marketing model of offering a bewildering array of models to try and catch the entire market. Now, that model has failed already - because it doesn't work. The market is automatically diluted. So why are they still using it?
speedriff [also above] has decided Steve Jobs is a "douche" because he's being "hardheaded" over Flash, while "Other manufacturers are giving AMOLED screens and are getting better and better."
Apple make more profit from all their products than anyone else. One way they do this is by waiting until they can demand a very high proportion of a large enough production of a component [NAND flash memory, screens etc] at the most competitive price, or can manufacture in-house [CPUs]. That's not just good business, it's vital for long term survival.
Wait until June this year and we'll see the new iPhone with a longer [HD aspect ratio] OLED screen. And HTML5 is the future. in reality, Adobe are better candidates for the 'douche' epithet here. If Flash had fewer issues, maybe Apple would add it.
What you need to understand is that Apple is better at seeing, predicting and exploiting the WHOLE picture, than any other company in this game. And anyone who seriously thinks a disparate group of not for profit developers and a market full of lazy manufacturers with a 19th Century sales mentality are going to win this one, is simply not even looking at it properly.
You obviously have no formal education when it comes to the world of finance, so I'm not sure why you're even making comments about such things.
The simple fact that Apple has to make $23 billion more in revenue compared to Google, just so they can have $2.7 billion more in gross profit is nothing to brag about.
Go do more homework.
faroZ06
May 2, 10:20 PM
Unchecking a single box isn't justification for switching browsers. If you don't like Safari, fine. But this isn't a reason for anyone to leave Safari.
Yeah. I actually like Safari way more than anything else because of all of the features and integration with Mac OS X that Firefox and Chrome lack. Also, Chrome hogs RAM, and Firefox takes a while to start. Don't even talk about IE :rolleyes:
And for me Firefox seems MORE bloated, but I haven't really run any tests. I've tested Chrome just to respond to eMails from my friend, a Google fanboy, about Chrome being "faster". :D
Yeah. I actually like Safari way more than anything else because of all of the features and integration with Mac OS X that Firefox and Chrome lack. Also, Chrome hogs RAM, and Firefox takes a while to start. Don't even talk about IE :rolleyes:
And for me Firefox seems MORE bloated, but I haven't really run any tests. I've tested Chrome just to respond to eMails from my friend, a Google fanboy, about Chrome being "faster". :D
javajedi
Oct 11, 12:26 PM
What you are saying makes a lot of sense. Now that I think about, I too recall reading this somewhere.
Now that we know the real truth about the "better standard FPU", I thought it was time to shed some light on non vectorized G4 integer processing.
It still does 200,000,000 calculations, but this time I'm multiplying ints.
Motorola 7455 G4@800Mhz: 9 seconds (Native)
IBM 750FX G3@700Mhz: 7 seconds (Native)
Intel P4@2600Mhz 2 seconds (Java)
PowerPC 7455 integer processing is consierabley better than floating point (obviously less work doing ints), but still less per cycle than the Pentium 4.
Very intresting the G4 looses both floating point and integer to the IBM chip, at a 100MHz clock disadvantage.
I'm still waiting to see that "better standard FPU" in the G4. It seems the G4 is absolutely useless unless you are fortunate to have vectorized (AltiVec) code.
Now that we know the real truth about the "better standard FPU", I thought it was time to shed some light on non vectorized G4 integer processing.
It still does 200,000,000 calculations, but this time I'm multiplying ints.
Motorola 7455 G4@800Mhz: 9 seconds (Native)
IBM 750FX G3@700Mhz: 7 seconds (Native)
Intel P4@2600Mhz 2 seconds (Java)
PowerPC 7455 integer processing is consierabley better than floating point (obviously less work doing ints), but still less per cycle than the Pentium 4.
Very intresting the G4 looses both floating point and integer to the IBM chip, at a 100MHz clock disadvantage.
I'm still waiting to see that "better standard FPU" in the G4. It seems the G4 is absolutely useless unless you are fortunate to have vectorized (AltiVec) code.
balamw
Apr 14, 04:41 PM
Regarding the first point - we have a NAS set up at home, but trying to format that sucker to where both of our computers could use it, the NAS recognized it, and to where we could stick >4GB files on there was a wreck.
Weird. That's the beauty of an SMB/CIFS NAS. It can run on Linux with ext3 and Samba and you'd think it was Windows/NTFS. Supporting >4GB is just a matter of getting the right format that the NAS understands, because it will translate that to a generic SMB call.
My current NAS is an HP Mediasmart running Windows Home Server, but I also used the Apple Time Capsule before that. Neither had any trouble with the issues you raise.
And dropbox has been a godsend for me. Drop a file in there and once synced it's accessible at full speeds from all of my three Macs (under OSX or Windows) my PC and even my iDevices.
B
Weird. That's the beauty of an SMB/CIFS NAS. It can run on Linux with ext3 and Samba and you'd think it was Windows/NTFS. Supporting >4GB is just a matter of getting the right format that the NAS understands, because it will translate that to a generic SMB call.
My current NAS is an HP Mediasmart running Windows Home Server, but I also used the Apple Time Capsule before that. Neither had any trouble with the issues you raise.
And dropbox has been a godsend for me. Drop a file in there and once synced it's accessible at full speeds from all of my three Macs (under OSX or Windows) my PC and even my iDevices.
B
goobot
May 5, 11:50 AM
I blame the iphone. Its a hog and kills atts network. If it was a diff phone this wount be happening. Apple needs to make it work with the network better.
skunk
Apr 23, 05:25 PM
I'm not cool enough to be an Atheist... :eek:Give it time.
steve_hill4
Jul 12, 06:13 AM
Because 105% of Mac-users have bought Photoshop Elements bundled with a digital camera. 95% of those never bother to upgrade to full version and 82% of those never use the software anyway. Oh, and 67% of statistics are made on spot ;)
I thought it was 88.2%?
;)
Actually from a Guinness ad, which also stated men think of sex every 6 seconds, before cutting to a revolving pint glass, with a half second flash of a woman in lingerie about half way through.
I thought it was 88.2%?
;)
Actually from a Guinness ad, which also stated men think of sex every 6 seconds, before cutting to a revolving pint glass, with a half second flash of a woman in lingerie about half way through.
PhantomPumpkin
Apr 21, 08:42 AM
Any links for that claim?
Also, Apple doesn't make the charts; I don't get how it's strange to compare a platform to another platform. I think it's stranger to compare a single device to an entire platform.
Simple. Comparing Phone to Phone, may show an Android "win". Comparing All Android devices to IOS devices would not show the same win, as the tablet market is still currently dominated by IOS. Why on earth would they want to show something that makes "their side" look bad?
Also, Apple doesn't make the charts; I don't get how it's strange to compare a platform to another platform. I think it's stranger to compare a single device to an entire platform.
Simple. Comparing Phone to Phone, may show an Android "win". Comparing All Android devices to IOS devices would not show the same win, as the tablet market is still currently dominated by IOS. Why on earth would they want to show something that makes "their side" look bad?
Moyank24
Mar 18, 01:43 AM
Option 3; STOP trying to cheat the system, and START using your iDevice the way the manufacturer and your carrier designed it.
And while you're at it, knock off the piracy with the napster/limewire/torrent crap.
(Yeah, I said it! SOMEBODY had to!)
Do napster and limewire even exist anymore?
And while you're at it, knock off the piracy with the napster/limewire/torrent crap.
(Yeah, I said it! SOMEBODY had to!)
Do napster and limewire even exist anymore?
nixd2001
Oct 13, 05:54 PM
Originally posted by javajedi
ddtlm,
I have my theory as to why java took the lead over C in the sqrt example....
It might be worth finding C and Java language lawyers as well. ISTR that their treatment of IEEE FP values is different in subtle areas. I can tell you from past experience that these subtle areas are often what hammers performance. I'm talking about treatment for NaNs and that sort of thing. So this may be relevant?
ddtlm,
I have my theory as to why java took the lead over C in the sqrt example....
It might be worth finding C and Java language lawyers as well. ISTR that their treatment of IEEE FP values is different in subtle areas. I can tell you from past experience that these subtle areas are often what hammers performance. I'm talking about treatment for NaNs and that sort of thing. So this may be relevant?
ddtlm
Oct 12, 03:50 PM
OK, lets look at this code again. I'll write some x86 assembly to do it. Not the best in the world, but we'll get an idea whats going on. Also I need to do this to help my memory. :)
int x1,x2,x3;
for (x1=1; x1<=20000; x1++) {
for(x2=1; x2<=20000; x2++) {
x3 = x1*x2;
}
}
Ok, lets do it the stupidest way possible in x86 NASM:
OK:
segment .data
segment .bss
segment .text
iPhone 4 Black amp; White with umper
iphone 4 bumper black.
Silicone Frame Bumper Cases
iphone 4 bumper black. iphone
Extra Long 6 Foot (6ft) iPhone
int x1,x2,x3;
for (x1=1; x1<=20000; x1++) {
for(x2=1; x2<=20000; x2++) {
x3 = x1*x2;
}
}
Ok, lets do it the stupidest way possible in x86 NASM:
OK:
segment .data
segment .bss
segment .text
CoryTV
Apr 12, 10:15 PM
They should have just called this iMovie pro, because that's what it is. So, Apple Color is left to die the death of Shake, huh? Wow, crazy. I bet Avid is pretty thrilled with this. It's almost like they said "Let's leave the big installs to Avid"
firewood
Apr 28, 11:44 AM
I dont think iPads should be included. A computer shouldn't need a computer to be usable.
It doesn't matter what you think. It only matters what people are buying. Many are buying iPads for browsing/facebook/farmville instead of another HP or Dell laptop.
And a Mac or Dell PC needs a computer to be usable. Several of them. There's a computer (maybe two) inside the disk drive that it boots from, the mouse, and any access points or routers that it uses to connect to the net. Etc.
It doesn't matter what you think. It only matters what people are buying. Many are buying iPads for browsing/facebook/farmville instead of another HP or Dell laptop.
And a Mac or Dell PC needs a computer to be usable. Several of them. There's a computer (maybe two) inside the disk drive that it boots from, the mouse, and any access points or routers that it uses to connect to the net. Etc.
Liquorpuki
Mar 13, 05:09 PM
We don't need nuclear, or coal or oil for that matter.
A large (think 100milesx100miles) solar array in death valley for example, could power the entire Continental US.
No it couldn't. That would require grid energy storage technology that currently hasn't been invented yet.
Look up base load generation. There are only a few sources of generation that fall under this category. Nuclear and coal are among them. Most renewables are not.
A large (think 100milesx100miles) solar array in death valley for example, could power the entire Continental US.
No it couldn't. That would require grid energy storage technology that currently hasn't been invented yet.
Look up base load generation. There are only a few sources of generation that fall under this category. Nuclear and coal are among them. Most renewables are not.
mac1984user
Apr 15, 09:55 AM
Focus should be on ending/surviving ALL bullying, not just victims choosing a hip counterculture.
Because being gay, or supporting those who suffer from abuse, is the same as joining a 'hip counterculture' movement. Get real, dude. That's ridiculous.
This video was great. I'm glad it made it to the 1st page.
Because being gay, or supporting those who suffer from abuse, is the same as joining a 'hip counterculture' movement. Get real, dude. That's ridiculous.
This video was great. I'm glad it made it to the 1st page.
rhuber
Apr 20, 09:30 PM
Look, I have used several android phones due to changing networks a few times over the last year. And I will say this, an Android phone cannot last 2 days even on sleep mode. U put ur phone on ur desk unplugged at night with 100% battery, and by the morning, it will mysteriously go down to 60-70%. And trust me, I know everything about android from rooting, to roms, to kernals, so I know I am not doing anything dumb like leaving bunch of apps open and running.
I can't speak for your experiences, but to say that an android cannot last 2 days is just not accurate. My wife uses a DroidX (the one with the giant bright screen), and yes... she gets two days of use on a charge. And she texts constantly.
I can't speak for your experiences, but to say that an android cannot last 2 days is just not accurate. My wife uses a DroidX (the one with the giant bright screen), and yes... she gets two days of use on a charge. And she texts constantly.
jimitrott
Feb 24, 06:07 AM
Android might surpass the iPhone. The iPhone is limited to 1 device whereas the Android is spanned over many more devices and will continue to branch out.
mr evil brkfast
Oct 7, 11:12 AM
I think it is pretty sad when the comparisons are not between the best of the best of each manufacturer and Apple still looses with the top of the line.
I dunno what AMD's best is but to see how close/ or far behind Apple is the comparison should at least include a 2.5-2.8 ghz pentium 4.
I dunno what AMD's best is but to see how close/ or far behind Apple is the comparison should at least include a 2.5-2.8 ghz pentium 4.
Multimedia
Oct 29, 10:28 AM
I think I remember a very long wait time for shipments when the Mac Pro was first announced. Is it likely we'll see another extensive wait time once they accept orders, even IF they announce Octo-cores in mid November? Also, on a completely different note, will this processor upgrade effect programs that worked on woodcrest processors? As in, is there a chance a program that works on woodcrest wont work on clovertown?No. All will work on Clovertown that worked on Woodcrest. Each Clovertown is simply two Woodcrests combined into one pin compatible package.
Apple should take orders beginning Tuesday November 14, the day after Intel has their "Shipping" Press Event. There will not be a big delay from then and when they ship because Intel is delivering them in quantity to manufacturers right away in November and the number of orders will be small compared to C2D products as well as Woodcrest products.
I'm not sure it's fair to characterize Apple as always being slow to ship new products. My impression of the C2D iMac release Wednesday September 6, 2006 is that it was both early and rapidly deployed. I don't think many of us saw it coming and they were immediately for sale in quantity in all the Apple Stores as well as online shipping immediately.I heard somewhere that the Clovertowns are actually slower than the Xeons, but with 2x as many cores will there be much difference?Clovertowns are Xeons. They are Dual Woodcrests on one pin compatible package. They are not slower. They run 2.66GHz which is same as the stock MBP offering now. They will provide a total of 21.28GHz worth of power vs. 10.64GHz or 12GHz on the current 2.66GHz & 3GHz 4-core models. Do you know your workflow? Do you know what you use is multi-core aware or not? Do you know if you want to run multiple instances of multi-core aware applicatinos simultaneously? These are the kind of questions you need to ask yourself.
The Dual Clovertown Mac Pro is going to cost you over $4,000 once you put a decent amount of RAM in it. So are you ready for that much expense to save huge chunks of time? This is a Time-Is-Money product. If you don't see how you're going to save time with such a Mac then you may as well pass on it.
I'm sitting here writing you on my Quad G5 while I watch the paint dry on my two Toast video compression series I'm currently running so I can run a Handbrake compression series and another Toast compression series after they finish.
I have never needed so much more power in my lives with Macs since the early years '84-'93 as I do now. I think there are several others here who also are in the same boat. If you're here out of curiosity and not need, then you haven't yet realized how much you can do simultaneously on a Mac once you develop a Multi-Threaded Workload process that begs for more power all the time.
i would say that this upcoming 8-core Mac Pro is the first Mac that might be able to keep ahead of me. But in a few months I will probably be yearning for a 16-core Mac Pro as soon as Intel & Apple can put it together with independent busses for each core or at least more busses per core than one for four. Like maybe at least two for four ASAP.
Apple should take orders beginning Tuesday November 14, the day after Intel has their "Shipping" Press Event. There will not be a big delay from then and when they ship because Intel is delivering them in quantity to manufacturers right away in November and the number of orders will be small compared to C2D products as well as Woodcrest products.
I'm not sure it's fair to characterize Apple as always being slow to ship new products. My impression of the C2D iMac release Wednesday September 6, 2006 is that it was both early and rapidly deployed. I don't think many of us saw it coming and they were immediately for sale in quantity in all the Apple Stores as well as online shipping immediately.I heard somewhere that the Clovertowns are actually slower than the Xeons, but with 2x as many cores will there be much difference?Clovertowns are Xeons. They are Dual Woodcrests on one pin compatible package. They are not slower. They run 2.66GHz which is same as the stock MBP offering now. They will provide a total of 21.28GHz worth of power vs. 10.64GHz or 12GHz on the current 2.66GHz & 3GHz 4-core models. Do you know your workflow? Do you know what you use is multi-core aware or not? Do you know if you want to run multiple instances of multi-core aware applicatinos simultaneously? These are the kind of questions you need to ask yourself.
The Dual Clovertown Mac Pro is going to cost you over $4,000 once you put a decent amount of RAM in it. So are you ready for that much expense to save huge chunks of time? This is a Time-Is-Money product. If you don't see how you're going to save time with such a Mac then you may as well pass on it.
I'm sitting here writing you on my Quad G5 while I watch the paint dry on my two Toast video compression series I'm currently running so I can run a Handbrake compression series and another Toast compression series after they finish.
I have never needed so much more power in my lives with Macs since the early years '84-'93 as I do now. I think there are several others here who also are in the same boat. If you're here out of curiosity and not need, then you haven't yet realized how much you can do simultaneously on a Mac once you develop a Multi-Threaded Workload process that begs for more power all the time.
i would say that this upcoming 8-core Mac Pro is the first Mac that might be able to keep ahead of me. But in a few months I will probably be yearning for a 16-core Mac Pro as soon as Intel & Apple can put it together with independent busses for each core or at least more busses per core than one for four. Like maybe at least two for four ASAP.
shawnce
Oct 26, 12:04 PM
Run an RGB to CMYK conversion on a 1 Gig Photoshop file with embedded profiles -- watch activity monitor. See that all four processors kick in for this processes. Many Photoshop processes efficiently use all four processors.
Just wanted to note...
It is easy to confuse a single thread bouncing among available cores as it gets scheduled (which happens easily on Mac OS X) and multiple threads executing in parallel on multiple cores if you look at per CPU utilization graphs because of sampling artifacts.
In top you want to look at "CPU usage" or in activity monitor look at "% Idle". If idle CPU usage is close to zero then you are truly utilizing the cores in your system which often implies that the application you are using is spreading the work across the available cores. In a four core system if idle CPU is around 75% (usually several percentage points under that because of system related threads supporting the application) then the application is really only using a single core (single threaded). In a four core system if idle CPU is around 50% then the application is really only using two cores (two threads). etc.
You can also look at load average in top. If the load average is around 1 then the work load on the system is on average only utilizing one core. If the load average is around 2, then on average two cores are being utilized. etc. If the load average is greater then the number of cores in the system then the work load is greater then what the cores in the system can run concurrently.
Note load average (and CPU %) will be depressed if the work load is IO bound and not CPU bound... so an application could be attempting to utilize multiple cores (use multiple threads) but IO bandwidth, etc. is starving those threads of the data they need and hence preventing them from executing.
The best way to know that an application is utilizing multiple threads for a task is to use tools like sample and Shark.
Just wanted to note...
It is easy to confuse a single thread bouncing among available cores as it gets scheduled (which happens easily on Mac OS X) and multiple threads executing in parallel on multiple cores if you look at per CPU utilization graphs because of sampling artifacts.
In top you want to look at "CPU usage" or in activity monitor look at "% Idle". If idle CPU usage is close to zero then you are truly utilizing the cores in your system which often implies that the application you are using is spreading the work across the available cores. In a four core system if idle CPU is around 75% (usually several percentage points under that because of system related threads supporting the application) then the application is really only using a single core (single threaded). In a four core system if idle CPU is around 50% then the application is really only using two cores (two threads). etc.
You can also look at load average in top. If the load average is around 1 then the work load on the system is on average only utilizing one core. If the load average is around 2, then on average two cores are being utilized. etc. If the load average is greater then the number of cores in the system then the work load is greater then what the cores in the system can run concurrently.
Note load average (and CPU %) will be depressed if the work load is IO bound and not CPU bound... so an application could be attempting to utilize multiple cores (use multiple threads) but IO bandwidth, etc. is starving those threads of the data they need and hence preventing them from executing.
The best way to know that an application is utilizing multiple threads for a task is to use tools like sample and Shark.
tayldn
Oct 14, 05:38 AM
Completely agree.
Me too. (Gartner know nothing- pure guesses). Having lots of devices is going to be less and less important for Nokia and Android. Apple have shown that form factor is not that important (not as important as it was when everything on the inside was the same)- a good big screen with a thin unit is all most need now that the magic is on the inside. Consumers are not going to want to differentiate with form factor (outside) so much as the cool stuff inside- there's real personalisation going on...inside.
I really used to dislike Apple (broken ipod!). But they know how to treat developers like me. The iPhone is going to take a much bigger share of the market over the next 24 months in the UK where it's coming off exclusivity with o2. The product is better and will stay better for some time. And cheaper untis are going to hit the market very soon making this accessible to everyone. Apple'll let this thing keep growing- in the future, they'll be able to make a loss on the handset...
Reckon they've got 24 months over the other manufacturers. o2 have about 20% of the market. Apple could triple their market share quite quickly simply by going with 2 more operators. Bit rudimentary I know- but why not?
Me too. (Gartner know nothing- pure guesses). Having lots of devices is going to be less and less important for Nokia and Android. Apple have shown that form factor is not that important (not as important as it was when everything on the inside was the same)- a good big screen with a thin unit is all most need now that the magic is on the inside. Consumers are not going to want to differentiate with form factor (outside) so much as the cool stuff inside- there's real personalisation going on...inside.
I really used to dislike Apple (broken ipod!). But they know how to treat developers like me. The iPhone is going to take a much bigger share of the market over the next 24 months in the UK where it's coming off exclusivity with o2. The product is better and will stay better for some time. And cheaper untis are going to hit the market very soon making this accessible to everyone. Apple'll let this thing keep growing- in the future, they'll be able to make a loss on the handset...
Reckon they've got 24 months over the other manufacturers. o2 have about 20% of the market. Apple could triple their market share quite quickly simply by going with 2 more operators. Bit rudimentary I know- but why not?