So, the basic problem here is, the kernel ( 2.6 ) can just address 1 GB of virtual addresses, which can translate to a maximum of 1 GB of physical memory. This is because the kernel directly maps all available kernel virtual space addresses to the available physical memory."
"Originally HIGHMEM was called BIGMEM and BIGMEM seen the light in kernel 2.3.16."
This is the Kernel patch I was talking about. The IA64 Kernel, that Alan Cox was the maintainer for SGI was nothing less than a brilliant peice of work, however it left the IA32 world behind, and a few linux vendors were left with the HIGHMEM patch, which slowed the machine's down due to having to use a segmented (1GB segment ) address space. It easily trimmed off 30% of the horsepower, but since it was running SAP, most of the horsepower was wasted anyway.
The problem will be back when, for IA64, when the SAP database requirements grow beyound 16GB, and the MMU chips will need a diffrent type of patch.
Dont think for a second, that both Alan Cox's work on the SGI/IA64 port was anything less that brilliant, nor that Andrea Arcangeli's work was anything less than brilliant either. It was an enhancement that came at a cost.
Please keep in mind, that the larger the memory pointer, the slower the program.
When the first linux patch came out to use more than 1GB of memory, I applyed the patch, and experenced a significant performance hit, in terms of speed. It was a patch to make SAP run, and a gargantian database like that just goes faster, if its all loaded into RAM, so it becomes a bit better slug, instead of just a ugly slug. ( Do you get the feeling I dont like SAP? ). Suffice to say, the new extension, and the patch before it, are for specific tasks that can take advantage of it.
If you have a ram intensive task, like SAP, its going to show some improvement. If you have a disk intensive task, or a processor intensive task, its probibly going to hurt your performance. Hence, GNU/Emacs, is probibly going to run slower. ( dear god, I think I have the 0.1 distrubution mag tape. )
Windows with 4GB is slower, except for certain operations in Photoshop, and thats both the result of the coagulated slag of spegetti code, and the p*ss poor scheduler. I am going to get a look at the new memory fixes and see how well they work on the big ram box.
Finally a novel use of the word 'Ping' We pinged the moon. Of course a trace route is trival since its basically line of sight.
Of course Richard Feynman thought of light as nothing more than particles, that behaived as summations of particle paths called path integrals. Q.E.D. is based upon that.
Take out a CD. Look at the rainbow. Q.E.D. proved.
I knew Einstien personally...er.. Hans... his son.
Four Color Map Problem. (computer proof ). Largest Prime. Optimal Golumb Ruler. Big bang simulation. Black Hole Simulation. Tuskunga Simulation.
Actually, Universal machines and cellular automata. Monte Carlo statistical methods.
Airfoil design. Traffic flow design. Space Shuttle design. ARCHITETUCRE.
"Nothing in computer modeling makes a connection to reality and truth." I am sorry, I cannot agree. There are so many counter examples where computer simulation has
Space Shuttle design. ARCHITETUCRE.
"Nothing in computer modeling makes a connection to reality and truth." I am sorry, I cannot agree. There are so many counter examples where computer simulation has allowd us to understand reality as such a deeper level.
I suppose you dont believe in black holes since you never been sucked into one. Nows your chance.
"There is nothing of substance in the article" There is ABSOLUTLY NOTHING of substance in the article. At Least you could have told us WHICH supercomputer/0 HECHoR is brand new, or Maxwell or some beowolf cluster of bagpipes?
ScienceDaily is a terciary source. ( also its 'related' site are also devoid of interest' ) We should all just *ignore* it. Its not like there is any substance. Much better is Scientific America, or MIT's TechReview.
I just switched over to openDNS. I somehow cannot access any sites anymore, that I suspected had very bad content! ( if I want to test my security, I have to switch back to comcast's unsecure DNSs )
Life with openDNS is great, and fast and secure. Wish they would get on with having servers in more areas, but they are connected right to the Level3 backbone.
and openDNSs search feature isnt half bad. ( I know, I used to hit a lot of squatters ).
Sorry. 100 Terabytes: The entire internet NOT! 100 Terabytes does not even cover 1 Patette of TB drives @ costco. ( I counted... there were 120 on the palette and 9 had been taken...111 terabytes of data on the wall.. i digress ).
The internet includes the largest databases in the world, and all the video as well as the raw data. and: "The Internet Archive at BA includes the web collection of 1996 to 2006. It represents 1.5 petabytes of data stored on 880 computers."
So, you are off by more than an order of magnitude at least, if not more.
DUH! probed 2,800M addresses active, by the internet census.
"Respondents projected that by the end of 2004, both transaction processing and decision support systems will more than double in size. These figures put us on track to break the 100-TB barrier sometime next year."
The largest databases on the internet broke the 100-TB barrier in 2005.
Im typing this on a freelaptop, with free internet, eating free food. Aint life grand? and now, how much does the book cost? Hmm.. Yea DTA-Dead Tree article. I read the first four Potter books from a text archive, and would have never bought and read the last 3, had I not gotten the free ones. I have since bought the whole set, and donated it to a library. ( I also found two other sets, 1~4, and sent those off to a library too! ).
I used to edit wikipedia, until they deleted my article on the 'aerodynamics of fruit.' "If they spent half the energy creating articles as they spend arguing about deleteing them, they would grow at a phenominal pace." - A 'free' quote from slashdot. (but I did actually ask the writer if I could quote him ).
Freecycle.org ROCKS!
Now, Im going to sleep on my free matress, and put my head on a free soft-jell pillow, and weep for anyone that actually pays retail.
SAP isn't the performance king, and requires the largest memory footprint of any application I have ever heard of. ( beats Battlefield 1942 hands down! ) and Vista, the OS, that has the largest footprint of any OS outside of z0S9 1.1
Clearly, there needs to be more Vista support for SAP, I mean, dear god, whereare all those 16GB ram chips going to go?
"How could anyone be so stupid that they put something that important into a super proprietary format?!" Your talking about the level of goverment service that brought you the post office?
Silverlight does not work on any of my Windows 2000 boxes. It probibly blows chunks, on firefox, but I wouldnt know. The point about proprirey formats is VERY IMPORTANT. I always consider the 1950 Census. Tapes are there, and no one can read them. We do not have the technology anymore, but more importantly, no one thought to put them in format that could be easily read. What would you have done? They should have converted the data, every census into the latest formats, just as backups!
Look for SpaceSiege... I *LOVE* dungeon Siege. I could easily damage myself playing that game. I remember starting ohh about 9:00. Then thinking Hmm.. my neck is getting sore. 5:00 am? What? 8 hours? What? Now I have a clock WITH an alarm. I set it for how long I want to play, and zing...get to the next shop, and stop.
I would like a game, that you have to rip off meat and eat it. Grrrrr... No salads here. Something like Bilestoad with gallons of blood. GALLONS.
You should look at the specfications for this MONSTER.
Umm.. you pay about $100,000 per processor. You get them all, they just enable them one at at time for liscenses. ( The shop I know has one, has 6 processors out of 54 enabled ). It can run updards 500 instances of linux per processor. ( average load ). You can upgrade the number of processors running on the fly! ( Sick aint it? ). It can run 1000s of linux instances...1000s!
Its 5 Processors per board, 10 boards are fully populated, and the 7th only has room for 4 processors. ( Its really cool to look in the cabinet...)
The old machine can handle 54 processors. ( They all actually come with all 54 installed! but at $100,000 a pop...You gotta pay! )
"Unique to POWER processor-based systems, Micro-Partitioning enables the allocation of as little as 0.1 of a full physical processor with a granularity of 0.01-to a logical partition."
A performance tuning analyst told me this alome is what allows hundreds of instances per processor ACTIVELY! Tens of thousands more can be put on freeze-non-execution status, and can be activated in the time it takes to swap it into memory. ( and it does it at channel-io speeds. )( a channel, and there are 32 of them, can transfer data at 1GB/Sec. ). The company, IBM claims they got 65,000 instances running, and the new boxes, they are probibly going to claim 100,000+.
This is a mainframe. They called the z09 enterprise T-Rex in response to someone saying that mainframes are dead as dinosaurs.
Reminds me of an old quote about what is a super computer! Costs more than $50Mil, state of the art, and is ranked on the top500.
Actually NOT. That is not how dynamic recompliation works. CISC instructions, that are not fully implemented in microcode, get dynamically recomplied into other intructions. Microcode is HOW those instructions get implemented. Also: Jump/Load/Store instructions do go through microcode. All memory accesses do. It makes things faster and simpler.
Microcode is HOW CPU instructions get implemented. ADD is implemented in microcode, becuase it has to interface the data queues with the ALU.
The way Intel Does it, is that The microcode gets copied from a disk file, and then gets loaded into a special place on the CPU, that stores bug-fixed instructions. ROM does not contain microinstruction fixes, except on Intel Boards. (It does not get updated often enough.)
The CPU driver handles Multiple CPUs. ( Its called the HAL ). Cool and Quiet/ACPI is also handled here.
Slashdot Mirror
http://kerneltrap.org/node/2450/7217
"The Problem:
So, the basic problem here is, the kernel ( 2.6 ) can just address 1 GB of virtual addresses, which can translate to a maximum of 1 GB of physical memory. This is because the kernel directly maps all available kernel virtual space addresses to the available physical memory."
"Solutions:
http://web.archive.org/web/20020313185718/http://strasbourg.linuxfr.org/jl3/features-2.3-2.html
"Originally HIGHMEM was called BIGMEM and BIGMEM seen the light in kernel 2.3.16."
This is the Kernel patch I was talking about. The IA64 Kernel, that Alan Cox was the maintainer for SGI was nothing less than a brilliant peice of work, however it left the IA32 world behind, and a few linux vendors were left with the HIGHMEM patch, which slowed the machine's down due to having to use a segmented (1GB segment ) address space. It easily trimmed off 30% of the horsepower, but since it was running SAP, most of the horsepower was wasted anyway.
The problem will be back when, for IA64, when the SAP database requirements grow beyound 16GB, and the MMU chips will need a diffrent type of patch.
Dont think for a second, that both Alan Cox's work on the SGI/IA64 port was anything less that brilliant, nor that Andrea Arcangeli's work was anything less than brilliant either. It was an enhancement that came at a cost.
He is a full professor of math. The result is significant. How about a link to the proof
"More Mt. Redmond, Microsoft center of the universe thinking."
and:
THERE IS NO EASTER BUNNY.
Were you expecting they would release it open source?
Please keep in mind, that the larger the memory pointer, the slower the program.
When the first linux patch came out to use more than 1GB of memory, I applyed the patch, and experenced a significant performance hit, in terms of speed. It was a patch to make SAP run, and a gargantian database like that just goes faster, if its all loaded into RAM, so it becomes a bit better slug, instead of just a ugly slug. ( Do you get the feeling I dont like SAP? ). Suffice to say, the new extension, and the patch before it, are for specific tasks that can take advantage of it.
If you have a ram intensive task, like SAP, its going to show some improvement. If you have a disk intensive task, or a processor intensive task, its probibly going to hurt your performance. Hence, GNU/Emacs, is probibly going to run slower. ( dear god, I think I have the 0.1 distrubution mag tape. )
Windows with 4GB is slower, except for certain operations in Photoshop, and thats both the result of the coagulated slag of spegetti code, and the p*ss poor scheduler. I am going to get a look at the new memory fixes and see how well they work on the big ram box.
Science Daily is NOT science, nor Daily.
The Holy Roman Empire, is NOT holy, nor Roman.
Is Slashdot a slash and a dot?
Finally a novel use of the word 'Ping' We pinged the moon. Of course a trace route is trival since its basically line of sight.
Of course Richard Feynman thought of light as nothing more than particles, that behaived as summations of particle paths called path integrals. Q.E.D. is based upon that.
Take out a CD. Look at the rainbow. Q.E.D. proved.
I knew Einstien personally...er.. Hans... his son.
Four Color Map Problem. (computer proof ).
Largest Prime.
Optimal Golumb Ruler.
Big bang simulation.
Black Hole Simulation.
Tuskunga Simulation.
Actually, Universal machines and cellular automata.
Monte Carlo statistical methods.
Airfoil design.
Traffic flow design.
Space Shuttle design.
ARCHITETUCRE.
"Nothing in computer modeling makes a connection to reality and truth."
I am sorry, I cannot agree. There are so many counter examples where computer simulation has
Space Shuttle design.
ARCHITETUCRE.
"Nothing in computer modeling makes a connection to reality and truth."
I am sorry, I cannot agree. There are so many counter examples where computer simulation has allowd us to understand reality as such a deeper level.
I suppose you dont believe in black holes since you never been sucked into one.
Nows your chance.
"There is nothing of substance in the article"
There is ABSOLUTLY NOTHING of substance in the article.
At Least you could have told us WHICH supercomputer/0
HECHoR is brand new, or Maxwell or some
beowolf cluster of bagpipes?
ScienceDaily is a terciary source. ( also its 'related' site are also devoid of interest' )
We should all just *ignore* it. Its not like there is any substance.
Much better is Scientific America, or MIT's TechReview.
That is what I have heard!
Mod parent +2 Informative
I just switched over to openDNS.
I somehow cannot access any sites anymore,
that I suspected had very bad content!
( if I want to test my security, I have to switch back to comcast's unsecure DNSs )
Life with openDNS is great, and fast and secure.
Wish they would get on with having servers in more areas, but
they are connected right to the Level3 backbone.
and openDNSs search feature isnt half bad.
( I know, I used to hit a lot of squatters ).
Sorry. 100 Terabytes: The entire internet NOT!
100 Terabytes does not even cover 1 Patette of TB drives @ costco. ( I counted... there were 120 on the palette and 9 had been taken...111 terabytes of data on the wall.. i digress ).
The internet includes the largest databases in the world, and all the video as well as the raw data. and:
"The Internet Archive at BA includes the web collection of 1996 to 2006. It represents 1.5 petabytes of data stored on 880 computers."
So, you are off by more than an order of magnitude at least, if not more.
DUH! probed 2,800M addresses active, by the internet census.
http://wintercorp.com/VLDB/2003_TopTen_Survey/TopTenProgram.html
"Respondents projected that by the end of 2004, both transaction processing and decision support systems will more than double in size. These figures put us on track to break the 100-TB barrier sometime next year."
The largest databases on the internet broke the 100-TB barrier in 2005.
Im typing this on a freelaptop, with free internet, eating free food. Aint life grand? and now, how much does the book cost? Hmm.. Yea DTA-Dead Tree article. I read the first four Potter books from a text archive, and would have never bought and read the last 3, had I not gotten the free ones. I have since bought the whole set, and donated it to a library. ( I also found two other sets, 1~4, and sent those off to a library too! ).
I used to edit wikipedia, until they deleted my article on the 'aerodynamics of fruit.' "If they spent half the energy creating articles as they spend arguing about deleteing them, they would grow at a phenominal pace." - A 'free' quote from slashdot. (but I did actually ask the writer if I could quote him ).
Freecycle.org ROCKS!
Now, Im going to sleep on my free matress, and put my head on a free soft-jell pillow, and weep for anyone that actually pays retail.
Numb3rs Entertainment value: 8/10
Numb3rs Math value: 0/10
He acts like a dork, and socially mal-adjusted does NOT make him a geek, just a dork.
Microsoft and SAP. A marrage made in heaven!
SAP isn't the performance king, and requires the largest memory footprint of any application I have ever heard of. ( beats Battlefield 1942 hands down! )
and Vista, the OS, that has the largest footprint of any OS outside of z0S9 1.1
Clearly, there needs to be more Vista support for SAP,
I mean, dear god, whereare all those 16GB ram chips going to go?
Oh is you Ramen!
"How could anyone be so stupid that they put something that important into a super proprietary format?!" Your talking about the level of goverment service that brought you the post office?
Silverlight does not work on any of my Windows 2000 boxes. It probibly blows chunks, on firefox, but I wouldnt know. The point about proprirey formats is VERY IMPORTANT. I always consider the 1950 Census. Tapes are there, and no one can read them. We do not have the technology anymore, but more importantly, no one thought to put them in format that could be easily read. What would you have done? They should have converted the data, every census into the latest formats, just as backups!
Dont New Your Cabbies have proir art?
Whatsistoyou! BaddaBing!
Been there, done that.
NetHack. U kill it, U eat it.
Sleep? BardsTale 1.
Look for SpaceSiege... I *LOVE* dungeon Siege. I could easily damage myself playing that game. I remember starting ohh about 9:00. Then thinking Hmm.. my neck is getting sore. 5:00 am? What? 8 hours? What? Now I have a clock WITH an alarm. I set it for how long I want to play, and zing...get to the next shop, and stop.
I would like a game, that you have to rip off meat and eat it. Grrrrr... No salads here. Something like Bilestoad with gallons of blood. GALLONS.
You should look at the specfications for this MONSTER.
Umm.. you pay about $100,000 per processor. You get them all, they just enable them one at at time for liscenses. ( The shop I know has one, has 6 processors out of 54 enabled ). It can run updards 500 instances of linux per processor. ( average load ). You can upgrade the number of processors running on the fly! ( Sick aint it? ). It can run 1000s of linux instances...1000s!
Its 5 Processors per board, 10 boards are fully populated, and the 7th only has room for 4 processors. ( Its really cool to look in the cabinet...)
The old machine can handle 54 processors. ( They all actually come with all 54 installed! but at $100,000 a pop...You gotta pay! )
"Unique to POWER processor-based systems, Micro-Partitioning enables the allocation of as little as 0.1 of a full physical processor with a granularity of 0.01-to a logical partition."
A performance tuning analyst told me this alome is what allows hundreds of instances per processor ACTIVELY! Tens of thousands more can be put on freeze-non-execution status, and can be activated in the time it takes to swap it into memory. ( and it does it at channel-io speeds. )( a channel, and there are 32 of them, can transfer data at 1GB/Sec. ). The company, IBM claims they got 65,000 instances running, and the new boxes, they are probibly going to claim 100,000+.
This is a mainframe. They called the z09 enterprise T-Rex in response to someone saying that mainframes are dead as dinosaurs.
Reminds me of an old quote about what is a super computer! Costs more than $50Mil, state of the art, and is ranked on the top500.
Does that mean that I have to stop using Netscrape 1.1?
When will it all end!
It didnt hit the 10+ minute laugh, and try to call someone while Im chokeing type laugh. It was a long and loud laugh though. It was good though...
.... hahahhahahhahah
Put china behind a NAT... hahahhahahhaha! Stop spambots
It is a subtile and good joke.
Mod parent +2 funny. That was good. Really really good!
You miss the quite obivious brilliance ( Mod Parent +1 ):
If they ported Vista to the XBox 360, and made it exclusive...
"I'm looking at 3 machines right now that it's refusing to install on."
Who says we have to wait for SkyNet? The age of intelligent machines has begun!
I stand corrected, Microcode updates for Intel or AMD processors can come from ROM BIOS or DISK Files:
Ref: http://support.microsoft.com/kb/936357/
Nuff said. Get the update already!
Actually NOT. That is not how dynamic recompliation works.
CISC instructions, that are not fully implemented in microcode, get dynamically recomplied into other intructions. Microcode is HOW those instructions get implemented.
Also: Jump/Load/Store instructions do go through microcode. All memory accesses do. It makes things faster and simpler.
Microcode is HOW CPU instructions get implemented. ADD is implemented in microcode, becuase it has to interface the data queues with the ALU.
The way Intel Does it, is that The microcode gets copied from a disk file, and then gets loaded into a special place on the CPU, that stores bug-fixed instructions. ROM does not contain microinstruction fixes, except on Intel Boards. (It does not get updated often enough.)
The CPU driver handles Multiple CPUs. ( Its called the HAL ). Cool and Quiet/ACPI is also handled here.
Refrence: http://support.microsoft.com/kb/234558
and
Refrence: http://en.wikipedia.org/wiki/Microcode.
I cannot believe that I brough this up, and only got a 1, while others, in just adding a tiny explaination get a 4 or 5. PickyWicky