Multimedia
Oct 27, 12:37 AM
Multimedia, I was wondering if you could address the FSB issue being discussed by a few people here, namely how more and more cores using the same FSB per chip can push only so much data through that 1333 MHZ pipe, thereby making the FSB act as a bottleneck. Any thoughts?No thoughts. Hope for the best.
ThunderSkunk
Apr 9, 02:22 AM
Not saying I am a real hard core gamer
You mean you actually do something productive with your life, and not spend all your resources playing... a game.
Be proud of this.
You mean you actually do something productive with your life, and not spend all your resources playing... a game.
Be proud of this.
KingYaba
Aug 29, 06:27 PM
Not all organic foods are actually organic.
chatin
Sep 26, 07:24 PM
Apple should put much needed development into the notebooks. The current crop of Mac Pros are perfect.
Let software catch up!
Let software catch up!
WestonHarvey1
Apr 15, 10:28 AM
Agreed. But you know what, some people deserve not one ounce of respect. The minute one crosses that line with me, and takes the liberty to label me as a self-hater, guess what, you've successfully lit a fire under my *** and I'm gonna talk back at you in a fitting way. Point blank.
You can go ahead and read thru all my posts in MacRumors and you'll see that I'm not a negative whiner, or one quick to disrespect others. But I have zero tolerance for people that are quick to label or judge me for my views.
Just one more reason to not belong to a pressure group like "LGBTAQ". Different opinions are not tolerated. There's no competition of ideas or checks and balances in a situation like that.
Case in point. You sound like someone who might be even tangentially sympathetic to the ex-gay movement. Don't want to put any words in your mouth but I have a feeling you at least tolerate its existence and feel they have a right to their own opinion. Well, the LGBT folks can't tolerate anyone having an idea like that - they'll even organize and boycott and pressure Apple until they remove some lame, lonely little app from the App Store.
Meanwhile - need to find a glory hole or a cruising area nearby? There's an App for That!
You can go ahead and read thru all my posts in MacRumors and you'll see that I'm not a negative whiner, or one quick to disrespect others. But I have zero tolerance for people that are quick to label or judge me for my views.
Just one more reason to not belong to a pressure group like "LGBTAQ". Different opinions are not tolerated. There's no competition of ideas or checks and balances in a situation like that.
Case in point. You sound like someone who might be even tangentially sympathetic to the ex-gay movement. Don't want to put any words in your mouth but I have a feeling you at least tolerate its existence and feel they have a right to their own opinion. Well, the LGBT folks can't tolerate anyone having an idea like that - they'll even organize and boycott and pressure Apple until they remove some lame, lonely little app from the App Store.
Meanwhile - need to find a glory hole or a cruising area nearby? There's an App for That!
chrono1081
Apr 20, 09:31 PM
I honestly have no idea how you have the job that you do, because you fail tremendously in this aspect.
I have the job that I do because I know MUCH more about Windows than you do obviously. If you think what I posted above is a bunch of fud then you really don't know anything about Windows OS or manual malware removal. There is all kinds of ways malware can hide and on Windows many times the only way you know its on the system is by finding altered registry keys, but removing the key doesn't remove the malware so you have to manually dig for files. Most of the time you can find them by looking but some malware uses the feature to hide folders completely even if you tell the system to show all files. If you want a prime example of a virus that does this look up and infect your system with Oboma (yes its spelled incorrectly). It went around our workplace all the time and most of the time it used the file hiding technique mentioned above. Another is WD32Silly (or something close to that). Thats another one that always did it. With over 6,000 users to support I see this stuff all the time.
EDIT: This is why tools that access files outside the OS are popular, like BartPE and various other packages. You can see these files if Windows is not booted up and your not plugging the drive into another machine.
Why do they allow the files to be hidden?
Of course if you used Norton you wouldn't have this problem. :D:D:D
Actually....we use Symantec which is the the first scanner we use which doesn't find anything ;) Or, to its credit it will find something, but not remove it (hence how we find out the names half of the time). Honestly though you really want multi-layered scanning. If the program on the computer doesn't catch anything it goes to IT and we scan it with other tools, as a last resort we will manually remove it but if it doesn't work or ends up being to "messy" the machine gets re-imaged.
I have the job that I do because I know MUCH more about Windows than you do obviously. If you think what I posted above is a bunch of fud then you really don't know anything about Windows OS or manual malware removal. There is all kinds of ways malware can hide and on Windows many times the only way you know its on the system is by finding altered registry keys, but removing the key doesn't remove the malware so you have to manually dig for files. Most of the time you can find them by looking but some malware uses the feature to hide folders completely even if you tell the system to show all files. If you want a prime example of a virus that does this look up and infect your system with Oboma (yes its spelled incorrectly). It went around our workplace all the time and most of the time it used the file hiding technique mentioned above. Another is WD32Silly (or something close to that). Thats another one that always did it. With over 6,000 users to support I see this stuff all the time.
EDIT: This is why tools that access files outside the OS are popular, like BartPE and various other packages. You can see these files if Windows is not booted up and your not plugging the drive into another machine.
Why do they allow the files to be hidden?
Of course if you used Norton you wouldn't have this problem. :D:D:D
Actually....we use Symantec which is the the first scanner we use which doesn't find anything ;) Or, to its credit it will find something, but not remove it (hence how we find out the names half of the time). Honestly though you really want multi-layered scanning. If the program on the computer doesn't catch anything it goes to IT and we scan it with other tools, as a last resort we will manually remove it but if it doesn't work or ends up being to "messy" the machine gets re-imaged.
~Shard~
Oct 31, 09:02 AM
My quad was to ship today, after waiting four business days and two weekend days for a CTO build (2 GB RAM). But I would feel sick to have had the machine for a week when the Octo's are announced. I hope this baby makes Logic Pro sing...
I hope you don't have to wait too long... :o
I hope you don't have to wait too long... :o
javajedi
Oct 9, 02:19 PM
Originally posted by gopher
Even more interesting was the advertisement from Apple when the Blue and White G3 came out, and how cool the case was when it opened so simply, they said the "Mac was more open-minded." What amazes me though is there are still just as many Windows users who are biggots in this world as Mac users who are, or even more so. Being though in the minority as we are, Mac users feel all the more need to defend themselves against this biggotted crowd. Apple is trying its hardest to level the playing field by its Switch campaign, and show that it is on the same playing field so that Windows users can't ignore us and demean us with lies, fabrications, and these myths. Only we have some people come on this board who claim that the Mac is much slower. For what purpose? How do we fight ignorance? I work with PCs only because the job I enjoy the most is run by an organization that is biased against Macs, and I'm not in the position to decide how to move Macs into the organization. But it certainly doesn't help to have people who would bad mouth the Mac. It makes us feel more in the minority and feel more the need to defend ourselves. Let's stop this attrocity. Show them what the Mac can do, and it is a viable solution. And Arne, if you are reading these boards, please delete clearly PC biased hate posts ASAP.
Actually you are solidifying my point. How do we fight ignorance? It's very simple. You fight ignorance with facts; you fight ignorance with truth. As far as "But it certainly doesn't help to have people who would bad mouth the Mac..." No. Myself, and the many people on this board who share my viewpoint are not hurting the Mac. We are being sincere, honost and truthful. If you think my post was a "PC biased hate post" you are deeply mistaken. I'm sorry if you can't understand that.
Even more interesting was the advertisement from Apple when the Blue and White G3 came out, and how cool the case was when it opened so simply, they said the "Mac was more open-minded." What amazes me though is there are still just as many Windows users who are biggots in this world as Mac users who are, or even more so. Being though in the minority as we are, Mac users feel all the more need to defend themselves against this biggotted crowd. Apple is trying its hardest to level the playing field by its Switch campaign, and show that it is on the same playing field so that Windows users can't ignore us and demean us with lies, fabrications, and these myths. Only we have some people come on this board who claim that the Mac is much slower. For what purpose? How do we fight ignorance? I work with PCs only because the job I enjoy the most is run by an organization that is biased against Macs, and I'm not in the position to decide how to move Macs into the organization. But it certainly doesn't help to have people who would bad mouth the Mac. It makes us feel more in the minority and feel more the need to defend ourselves. Let's stop this attrocity. Show them what the Mac can do, and it is a viable solution. And Arne, if you are reading these boards, please delete clearly PC biased hate posts ASAP.
Actually you are solidifying my point. How do we fight ignorance? It's very simple. You fight ignorance with facts; you fight ignorance with truth. As far as "But it certainly doesn't help to have people who would bad mouth the Mac..." No. Myself, and the many people on this board who share my viewpoint are not hurting the Mac. We are being sincere, honost and truthful. If you think my post was a "PC biased hate post" you are deeply mistaken. I'm sorry if you can't understand that.
likemyorbs
Mar 25, 11:11 AM
As marriage is licensed by the state, it is in fact a privilege. The fact that it is near-universally granted doesn't make it any more a right.
Is voting also a privilege? Marriage is most definitely a right. Hence the reason why the supreme court will soon find it unconstitutional to deny is to same sex couples, just as they did in 1967 with interracial marriage. Loving v. Virgina, white man wanted to marry a black woman, didn't work out well for him at first because of the "racial integrity act" of 1924. The RIA of 1924= Defense of marriage act today. It will be struck down as a violation of civil RIGHTS.
I am a firm believer in that you are entitled to your own opinion, as long as you dont force your opinion on others.
So someone doesnt like the idea of gay relationships, attacking him for this isnt going to change his opinion. And just makes you a cretin.
When someone's opinion is a direct attack on your civil rights, then they should be attacked.
Is voting also a privilege? Marriage is most definitely a right. Hence the reason why the supreme court will soon find it unconstitutional to deny is to same sex couples, just as they did in 1967 with interracial marriage. Loving v. Virgina, white man wanted to marry a black woman, didn't work out well for him at first because of the "racial integrity act" of 1924. The RIA of 1924= Defense of marriage act today. It will be struck down as a violation of civil RIGHTS.
I am a firm believer in that you are entitled to your own opinion, as long as you dont force your opinion on others.
So someone doesnt like the idea of gay relationships, attacking him for this isnt going to change his opinion. And just makes you a cretin.
When someone's opinion is a direct attack on your civil rights, then they should be attacked.
emotion
Sep 24, 03:52 AM
If Apple does force the thing to need a computer, I think they need to come out with an 'iTunes server' box that can fufill the same role, and it has to be cheap.
Mac Mini? I suspect that's exactly what Apple wants to drive sales of.
I know, they need to be cheaper.
Mac Mini? I suspect that's exactly what Apple wants to drive sales of.
I know, they need to be cheaper.
HBOC
Mar 11, 01:32 AM
God Bless everyone there. I am watching this live, and saw the surge just overrunning everything inland, including cars on the highway that couldn't move out of the way.
Hawaii is under a tsunami watch, but not the West Coast yet. There is a refinery on fire that is ready to explode and am seeing on the TV that people are on tops of roofs of houses flagging the helicopter for help. 4 million people w/o power. Just incredible, not in a good way.
Hawaii is under a tsunami watch, but not the West Coast yet. There is a refinery on fire that is ready to explode and am seeing on the TV that people are on tops of roofs of houses flagging the helicopter for help. 4 million people w/o power. Just incredible, not in a good way.
Howdr
Mar 18, 08:15 AM
this analogy is so stretched as to make no sense.
but even water, there are residential rates and commercial rates... you can't mix the two .. there are limits and plans.
you arent paying for the same data twice. you are trying to change the agreement after the fact.
dont like the agreement. dont enter into it.Sir it is perfect.
You are paying for the same thing.
I have an unlimted plan
and I never have gone over 5gb
if one has a 2gb plan and never goes over and we both surf on the internet
Tethering whats the difference?
I have no idea why you can't understand Data=Data
Water=Water
both are pure
the logic so you understand
I drink water = use Data on the phone
I pour water over my head = Data through tethering
So its valid. Using the same amount of substance, what we pay for, to do things in different ways, what should not matter.
Amount should be the issue not how I used it.
even my 10 year old son LOL when we talked about this, he said he doesn't understand why you would pay twice for the same thing.
Obviously it escapes you.
but even water, there are residential rates and commercial rates... you can't mix the two .. there are limits and plans.
you arent paying for the same data twice. you are trying to change the agreement after the fact.
dont like the agreement. dont enter into it.Sir it is perfect.
You are paying for the same thing.
I have an unlimted plan
and I never have gone over 5gb
if one has a 2gb plan and never goes over and we both surf on the internet
Tethering whats the difference?
I have no idea why you can't understand Data=Data
Water=Water
both are pure
the logic so you understand
I drink water = use Data on the phone
I pour water over my head = Data through tethering
So its valid. Using the same amount of substance, what we pay for, to do things in different ways, what should not matter.
Amount should be the issue not how I used it.
even my 10 year old son LOL when we talked about this, he said he doesn't understand why you would pay twice for the same thing.
Obviously it escapes you.
samcraig
Mar 18, 01:21 PM
No in the TOS it states there is a limit to unlimited (5gb), deceptive.
As far as the tethering issue, at&t does not know whos tethering.
they are guessing............so yes its wrong for them they should have proof and its possible for them to have the proof but they are the lazy ones.
"I think you are guilty, but to have the proof takes too much time, just execute them"
We live in a time of reason ( I question this at times myself) and you cannot condemn people based on a belief you need the proof.
a) show me this 5gb limit. I see none and don't know anyone who has been charged for going over 5gb on their UNLIMITED plan on their iPhone
b) they don't know if you tether or not. That is your assumption. They're guessing? Yeah.. ok. The FACT is - you have no idea if they do or don't have proof. Perhaps wishful thinking.
As far as the tethering issue, at&t does not know whos tethering.
they are guessing............so yes its wrong for them they should have proof and its possible for them to have the proof but they are the lazy ones.
"I think you are guilty, but to have the proof takes too much time, just execute them"
We live in a time of reason ( I question this at times myself) and you cannot condemn people based on a belief you need the proof.
a) show me this 5gb limit. I see none and don't know anyone who has been charged for going over 5gb on their UNLIMITED plan on their iPhone
b) they don't know if you tether or not. That is your assumption. They're guessing? Yeah.. ok. The FACT is - you have no idea if they do or don't have proof. Perhaps wishful thinking.
SwiftLives
Mar 13, 02:06 PM
It's a good thing he lives in Chrleston, SC. ;)
Saved by the typo! Yesssssss!
I'm much less worried about a the reactors onboard Naval submarines. Those can be moved or anchored in the threat of a hurricane, and are less likely to have bad things happen in an earthquake.
Ironically, nuclear reactors provide just over 50% of South Carolina's power. The two in this state are near Columbia and Greenville. Coal provides around 40%.
Saved by the typo! Yesssssss!
I'm much less worried about a the reactors onboard Naval submarines. Those can be moved or anchored in the threat of a hurricane, and are less likely to have bad things happen in an earthquake.
Ironically, nuclear reactors provide just over 50% of South Carolina's power. The two in this state are near Columbia and Greenville. Coal provides around 40%.
lighthouse_man
Apr 13, 03:01 AM
Why are you people comparing one app price tag to the whole suite price tag? For all we know, all the suite apps will be released individually and will total what the full suite now costs.
Piggie
Apr 28, 04:51 PM
I ran a dialup BBS from 1983-1992 and we had p0rn, FidoNet Email, discussion forums, software downloads, etc....
The Internet made stuff faster, more graphical, and brought stuff to a wider audience - but for us early birds, everything has always kinda been there.
I used a few Bulletin boards on old 300 baud modems, and also Prestel in the UK at 1200/75 speeds.
Don't know how many here are old enough and UK enough to remember using Prestel.
http://en.wikipedia.org/wiki/Prestel
The Internet made stuff faster, more graphical, and brought stuff to a wider audience - but for us early birds, everything has always kinda been there.
I used a few Bulletin boards on old 300 baud modems, and also Prestel in the UK at 1200/75 speeds.
Don't know how many here are old enough and UK enough to remember using Prestel.
http://en.wikipedia.org/wiki/Prestel
theBB
Sep 12, 07:13 PM
Ok, if you're SOOOOO thrilled, you've been living in a cave because you could've been doing that for years, there's nothing new here aside for an apple logo on the box... the EyeHome could do that for the last 3 years (no storage, with a remote, streaming from my mac over Wifi - the eyehome physically connected to the router, my Mac on Wifi) (http://www.elgato.com/index.php?file=products_eyehome ). And you're right, it's great... Too bad you still have to wait 6 months :P
Yes, but EyeHome does not support ALAC or Purchased AAC for audio, H.264 for video, it does not have a USB port to connect a USB drive with movies or music or to use it as a file server with that drive or hook a USB printer to use it as a print server. Needless to say, it cannot access iTunes store content, either. If iTV can do all of these, then it is definitely gonna be the winner.
Yes, but EyeHome does not support ALAC or Purchased AAC for audio, H.264 for video, it does not have a USB port to connect a USB drive with movies or music or to use it as a file server with that drive or hook a USB printer to use it as a print server. Needless to say, it cannot access iTunes store content, either. If iTV can do all of these, then it is definitely gonna be the winner.
Hawkeye411
Mar 27, 06:56 PM
This thread is full of win!! Thanks!! :D
Sydde
Mar 14, 01:13 PM
in japan though it's a little bit different. thats why there also isn't much open panic: simply for the fact that the majority of japanese don't want to be seen 'losing it'
I suspect you are somewhat mistaken on that point. Mostly, what happened happened, not much they can do about that now. Some eyewitnesses I hear on the radio were saying they felt eerily calm during the shaking, now they are mostly fatalistic, I would think. Panic just amounts to a waste of energy.
off topic side note: for other nuclear plant designs this events could have been massivle more dramatic
That remains to be seen. Right now, they are still struggling to keep this disaster from happening. The situation is hardly what I would call stable.
I suspect you are somewhat mistaken on that point. Mostly, what happened happened, not much they can do about that now. Some eyewitnesses I hear on the radio were saying they felt eerily calm during the shaking, now they are mostly fatalistic, I would think. Panic just amounts to a waste of energy.
off topic side note: for other nuclear plant designs this events could have been massivle more dramatic
That remains to be seen. Right now, they are still struggling to keep this disaster from happening. The situation is hardly what I would call stable.
Pilgrim1099
Apr 10, 10:28 AM
You mean Microsoft, right? And the interesting part is, Gates is still alive.
Two problems with your pseudo-intellectual response.
1. Gates has retired from Microsoft. Who's running the show now?
2. Who is the sicker of the two? Jobs or Gates?
Two problems with your pseudo-intellectual response.
1. Gates has retired from Microsoft. Who's running the show now?
2. Who is the sicker of the two? Jobs or Gates?
damnyooneek
Mar 18, 04:26 AM
stop gouging the customer. first we pay for 'unlimited' data thats capped at 5gb then they limit it to 2gb and force you to pay more to tether.
Rodimus Prime
Oct 7, 12:34 PM
I am not surprised by this at all.
There are cracks appearing in the iPhones armor very quickly.
1. It is suck on one network and will not take a chance to go with Verizon.
2. Only one manufactor is going to sting. Android is announced already on 4 different companies phones (Motoral, HTC, Samsung,and Nokia) I have heard rumors of Sony being added to that list as well.
3. Apple very poor and single point app approval process is starting to a lot of problems. When Jail Break stores are kicking off it clearly people want more choices. Hell people Jail break just to get certain apps that apple will not approve or take to long to approve. Compared to google system where the app store is just one of many locations to buy apps.
4. The very limited customization of iPhones OS is very limiting.
I think point 3 is the biggest problem with the iPhone OS and will be what in the long run what will let others over take it.
There are cracks appearing in the iPhones armor very quickly.
1. It is suck on one network and will not take a chance to go with Verizon.
2. Only one manufactor is going to sting. Android is announced already on 4 different companies phones (Motoral, HTC, Samsung,and Nokia) I have heard rumors of Sony being added to that list as well.
3. Apple very poor and single point app approval process is starting to a lot of problems. When Jail Break stores are kicking off it clearly people want more choices. Hell people Jail break just to get certain apps that apple will not approve or take to long to approve. Compared to google system where the app store is just one of many locations to buy apps.
4. The very limited customization of iPhones OS is very limiting.
I think point 3 is the biggest problem with the iPhone OS and will be what in the long run what will let others over take it.
fifthworld
Mar 18, 08:40 AM
I believe nobody is abusing the system; instead, it's the system -unlimited, 2GB, 4Gb, whatever- that is unable to cope with the different needs. As AT&T can monitor the usage of the databand, just give us a plan where we pay based in usage, for example $5 for each block of 1GB, and be done with it!
ddtlm
Oct 12, 03:30 PM
Wow I missed a lot by spending all of Friday away from this board. I am way behind in posts here, and I'm sure I'll miss a lot of things worth comment. But anyway, the code fragment:
int x1,x2,x3;
for (x1=1; x1<=20000; x1++) {
for(x2=1; x2<=20000; x2++) {
x3 = x1*x2;
}
}
Is a very poor benchmark. Compilers may be able to really dig into that and make the resulting executable perform the calculate radically different. In fact, I can tell you the answer outright: x1=20000, x2=20000, x3 = 400000000. It took me 2 seconds or so. Does this mean that I am a better computer than a G4 and a P4? No, it means I realized that the loop can be reduced to simple data assignments. I have a better compiler, thats it.
Anyway, lets pretend that for whatever reason compilers did not simplify that loop AT ALL. Note that this would be a stupid stupid compiler. At each stage, x1 is something, we ++x2, and we set x3 = x1 * x2. Now notice that we cannot set x3 until the result of X2++ is known. On a pipelined processor that cannot execute instructions out of order, this means that I have a big "bubble" in the pipeline as I wait for the new x2 before I can multiply. However, after the x3 is started into the pipe, the next instruction is just another x2++ which does not depend on x3, so I can do it immediately. On a 7-stage in-order chip like a G4, this means that I fill two stages of the pipe and then have to wait for the results on the other end before I can continue. You see that this is very inefficient (28% or so). However, the G3 is a 4-stage design and so 2/4 of the stages can stay busy, resulting in a 50% efficientcy (so a 700mhz G3 is "the same as" a 350mhz G3 at 100% and a 800mhz G4 is "the same as" a 210mhz G4 at 100%). These are of course simplified cases, the actual result may very a bit for some obscure reason.
Actually the above stuff is inaccurate. The G3 sports 2 integer units AFAIK, so it can do x3 = x1*x2 at the same time as it is doing x2++ (for the next loop of course, not this one). This means that both pipes start one bit of work, then wait for it to get out the other end, then do one bit of work again. So this is 25% efficientcy. A hypothetical single-pipe G3 would do x3 = x1*x3 and then do x2++, however it could not do x3 = x1 * x2 again until the x2++ was out the other end, which takes 4 cycles and started one after the previos x3 = x1*x2, which should mean 3 "bubble" stages and an efficientcy of 20%.
Actually, it may be worse than that. Remember that this is in a loop. The loop means a compare instruction (are we done yet?) followed by a jump depending on the results of the compare. We therefore have 4 instructions in PPC I think per loop, and we can't compare x2 to 20000 until x2++ has gone through all the pipe stages. (Oh no!) And we can't jump until we know r]the result of the compare (oh no!). Seeing the pattern? Wanna guess what the efficientcy is for a really stupid compiled version of this "benchmark"? A: really freaking low.
I'll see about adding more thoughts later.
int x1,x2,x3;
for (x1=1; x1<=20000; x1++) {
for(x2=1; x2<=20000; x2++) {
x3 = x1*x2;
}
}
Is a very poor benchmark. Compilers may be able to really dig into that and make the resulting executable perform the calculate radically different. In fact, I can tell you the answer outright: x1=20000, x2=20000, x3 = 400000000. It took me 2 seconds or so. Does this mean that I am a better computer than a G4 and a P4? No, it means I realized that the loop can be reduced to simple data assignments. I have a better compiler, thats it.
Anyway, lets pretend that for whatever reason compilers did not simplify that loop AT ALL. Note that this would be a stupid stupid compiler. At each stage, x1 is something, we ++x2, and we set x3 = x1 * x2. Now notice that we cannot set x3 until the result of X2++ is known. On a pipelined processor that cannot execute instructions out of order, this means that I have a big "bubble" in the pipeline as I wait for the new x2 before I can multiply. However, after the x3 is started into the pipe, the next instruction is just another x2++ which does not depend on x3, so I can do it immediately. On a 7-stage in-order chip like a G4, this means that I fill two stages of the pipe and then have to wait for the results on the other end before I can continue. You see that this is very inefficient (28% or so). However, the G3 is a 4-stage design and so 2/4 of the stages can stay busy, resulting in a 50% efficientcy (so a 700mhz G3 is "the same as" a 350mhz G3 at 100% and a 800mhz G4 is "the same as" a 210mhz G4 at 100%). These are of course simplified cases, the actual result may very a bit for some obscure reason.
Actually the above stuff is inaccurate. The G3 sports 2 integer units AFAIK, so it can do x3 = x1*x2 at the same time as it is doing x2++ (for the next loop of course, not this one). This means that both pipes start one bit of work, then wait for it to get out the other end, then do one bit of work again. So this is 25% efficientcy. A hypothetical single-pipe G3 would do x3 = x1*x3 and then do x2++, however it could not do x3 = x1 * x2 again until the x2++ was out the other end, which takes 4 cycles and started one after the previos x3 = x1*x2, which should mean 3 "bubble" stages and an efficientcy of 20%.
Actually, it may be worse than that. Remember that this is in a loop. The loop means a compare instruction (are we done yet?) followed by a jump depending on the results of the compare. We therefore have 4 instructions in PPC I think per loop, and we can't compare x2 to 20000 until x2++ has gone through all the pipe stages. (Oh no!) And we can't jump until we know r]the result of the compare (oh no!). Seeing the pattern? Wanna guess what the efficientcy is for a really stupid compiled version of this "benchmark"? A: really freaking low.
I'll see about adding more thoughts later.
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