Distilled water and tap water basically will have the same effect with regards to depletion of minerals.
That's simply not true.
Water is a natural solvent. It will also bond, by various means, with many things. Water which already is "full" of minerals will strip the body of fewer minerals simply because it can hold fewer "new" minerals. On the other hand, distilled water will naturally absorb the body's minerals, causing them to be urinated out.
As a result, measuring mineral content in urine will likely so similar results but for completely different reasons. In one case, the minerals are there because they were already present in the water. In the second case, the minerals will be there because they were removed from the body. This is true for all naturally occurring water and is why minerals are present in water in the first place. Why would you believe water magically works differently inside the body than it does outside the body?
but it does taste much different from mineral water?
You absolutely can taste the difference. If you can't, you likely abuse your buds by smoking or drink TONS of sugary drinks.
The minerals in water is the primary reason water tastes differently in different parts of town and all across the country. The flavor of mineral water, at least in modern times, is the reason why mineral water is so popular around the world.
If you can't tell the difference between distilled water and mineral water, you have something wrong with your taste buds, the "mineral water" is lacking much in the way of minerals, or you are in need of serious health/dietary changes which do not negatively effect your ability to taste.
Your body absolutely MUST be supplemented with minerals. Most people obtain their supplemental minerals by drinking water. If you are drinking distilled water, you are likely not getting enough minerals. Distilled water is good for ironing clothes, pouring into your radiator, and a few other odds and ends, but should generally not be any significant part of your diet unless you have health conditions which require otherwise. In which case, you'll likely need to be on mineral pill supplements.
As for possible causes, it could be any number of things. Unless their schools have been environmentally tested for vapor emissions from a variety of sources, suggesting the problems are in any way, shape, or form associated with WIFI is both stupidity at its worst and quackery.
Did you know carpet and mastics (glues) frequently emit toxic/carcinogenic vapors? Some wood products do too. But by in large, unless something has gone terribly wrong with an installation, these almost always normally dissipate over time. Not to mention, if there is a potential problem under the foundation, concrete works wonderfully to literally wick nasties from the ground directly into a building.
Mold is also a possibility. Furthermore, if the plumbing is very old, it could be a water born issue.
Psychosomatic illness is always a possibility. Such issues are not uncommon and particularly, if they have a quack of a nurse which may be feeding "wellness" information to students, may explain everything too.
Lastly, just as many others have pointed out, its sounds a lot like what happens in a high stress environment. School-itis seems, by far, the most likely explanation.
The fact that MySQL sucks as bad as it does works for Oracle, and if they actually kill it, they risk losing revenue!
IMOHO, the problem with MySQL+Oracle is that it doesn't make sense for anyone but Oracle. The skillset gap between MySQL and Oracle is MASSIVE! So when a project out grows MySQL, its not an automatic Oracle upgrade. Really, what's the incentive other than some very loose association via branding?
On the other hand, PostgreSQL completely encompasses MySQL (required skill sets and capability) and has a huge overlap with Oracle. To get your feet wet with PostgreSQL, the required skill set is only slightly larger than MySQL. And on the other end, the required knowledge is still less than is required for Oracle; despite PostgreSQL frequently providing superior performance. This means you can stick with PostgreSQL from entry to fairly high end. And, once you actually outgrow PostgreSQL, if you ever do, you have commercial offerings like EnterpriseDB. Which means, your PostgreSQL knowledge is fully protected.
Anyone not considering PostgreSQL must have money, time, and skills to burn.
Until GPLv3, patents were not a concern in the least. The GPL license, until GPLv3, is strictly a copyright license. This is exactly why GPLv3 came into being; as, for example, patents can be used to restrict access where it would otherwise not be restricted by way of copyright.
Bullshit. It was fought in court. You can't even hire an attorney to represent you on the basis of, "I have a thing but I can't discuss it with you." It is unconstitutional for a gag order to deny constitutional privileges. Not only that, but no such thing took place.
It really doesn't matter if its released under the GPL or not. Not in the least. Largely, the GPL does not address matters of patents. That's what created the GPLv3. Having royalty free copyright access does not speak at all to patent accessibility.
Having said that, Oracle/Sun's patents are complete bullshit and should never have been granted. All of the stated patents have a huge body of pre-existing art.
I sure wish the patent examiners were forced to pay legal fees out of their retirement accounts. If this were enacted, I'm sure the number of completely illegitimate patents would suddenly dry up overnight.
Turning off the GPS has a negligible difference in power consumption. For it to make a big difference, an application has to be using it. Just having the GPS in warm standby (enabled) typically will not exceed 5% or so of battery life. For most people this is not noticeable. Better to uninstall whatever poorly written applications you have installed.
Also, if you turn off your GPS, the next time you use it, especially if you move far from the last location you had it enabled, you might find it takes up to ten minutes to determine your GPS position.
If you find you must turn off your GPS to make your battery last, its almost a guarantee you have an absolutely crappy application installed on your phone. You can help locate it by reviewing your applications which requires fine grained location information.
WTF is wrong with people on slashdot these days?!?! Seriously!?
The means the court system worked. The first amendment worked. But, just because the FBI gave up is not reason to destroy an investigation. The COURT didn't allowing him to destroy an ongoing investigation, and in the mean time his first amendment rights were not harmed in any way.
Gag orders are very important tools. To be universally against gag orders is to be pro-crime. The first amendment is not in place to facilitate criminal activity. Its there to provide equal protection. Every way I look at this, it looks like it worked perfectly.
By that logic, loose lips don't sink ships? Wow...you're brilliant!
I have no idea why people on/. think no nation should have secrets. Until we all live in Utopia, anyone who thinks such a thing are absolute fucking idiots. The literal definition.
I think we have a serious case of egotism and idiocy run amok on slashdot here lately.
I second this. The Spring engine has many good games (mods) available. Games range from Total Annihilation clones to WWII to truly unique game play like Kernel Panic. There is even a Star Wars mod (looks awesome) nearing completion.
The game play is fun. The graphics are decent. There is an active community in their forums. The developers (engine and mods) are accessible and friendly. There are even a variety of AIs to choose from; many actively being supported and developed. Some mods even have their own, custom AI. As such, the game supports multi-player (up to 8v8 from what I've seen - though may not be an actual engine limit) and single player equally well.
Spring RTS truly is an open source gem. If you haven't tried it, you're missing out. If its been a while since you've tried it, you should try again. Also note, they are nearing completion of a major new release of the engine which drastically improves multi-threading.
It appears Spring RTS is beginning to attract hardcore AI developers, including AI students. There appears to be at least one project (in Python) in development to specifically cater to these AI developers. So I expect the state of AI development will continue to richly develop over time. If AI development is of interest to you, Spring may be a viable source of research and development. AIs can currently be written in C/C++, Java, Lua, and I believe C#. The Python AI interface becomes available with the upcoming engine release.
So go check it out! It has something for everyone!
So instead of "Citation needed", should people say "Please provide Google keywords" instead?
Again - douche bag. Patent law is hardly some obscure Internet reference. As my original post said, go to your nearest search engine. If YOU are ignorant of a subject, its hardly everyone else's job to rectify YOUR ignorance.
This particular subject is extremely well known and extremely well covered on the Internet (including/.) and is extremely easy to get information on, assuming your not a dumb, lazy, douche bag. In short, rather than say, "Citation needed", you should have gone to your nearest search engine and shown the world you're neither dumb or lazy.
Contrary to popular trends, it is not everyone else's job to educate you. And if, after making a good faith effort to find the material on your own, its not that hard to say, "I couldn't find what you were talking about. I did searches for x, y, and z. Can you please provide a reference of some kind?" Which is infinitely better than the, "Bullshit! Prove it!", which is all too often associated with, "Citation needed". The former is passive aggressive while the later is polite and indicates you are not a dumb, lazy, douche bag.
Unlike other areas of IP, trademark must be actively defended. If you don't inform others of your trademark, you are not defending it. The fact a trademark was not previously filed and according to the gp post, declaration of trademark was never made. As such, it does appear safe to assume they have never made any effort to trademark or defend a trademark.
Also, this is not Wikipedia or a researched document. "Citation needed". means you are incapable of effective, polite, communication and is frequently a sign of a dumb, lazy, douche bag. All too often, "Citation needed", means the author is too dumb and lazy to use a search engine. If you are not a douche bag, please stop using that phrase when outside of its proper context.
Its been suggested some planes in WWII, in dives, were actually breaking/transitioning the sound barrier. This is why many planes never pulled out of their dive and crashed into the ground. The reason being, not enough control surface to function with the shock waves (compressibility) to allow for maneuvering to avoid their fate. This was, in fact, a fate repeated by many test pilots who attempted to break the sound barrier. It wasn't until the flying control surface was created that the problem was licked.
"A while" was never the point of contention. The, "I do x, y, and z", to address problem which almost never happens, to prevent updating a buggy application (or simply periodically restarting it), such that one can maintain an uptime of "years" is the point of contention. Its such a point of contention, I'd call it, "complete bullshit."
Two wrongs do not make a right. The fact idiots such as yourself keep raising this point only indicates you believe otherwise. And to further give credence to your lacking intelligence, rejection of one is absolutely not the same as supporting the other.
I don't know why so many slashdotters insist on adopting such moronic rational, but all basis of thought along those lines is immediately invalidated. Which sadly, seems to represent a disproportionate number of responses to this article.
Your logic with a general statement; 1+1=3 and 2+2=5 Me: 1+1 does not equal 3. You: Hah! Stop saying 2+2=5!
Notice the assertion of 1+1 not equaling 3 is not the same thing as asserting 2+2 equals 5. Its the same thing here. Calling him out as the disgusting egotist he is, is not the same thing as being pro-murder. Get a grip!
Lastly, is this the first time you've heard about civilian deaths in a warzone? Is this the first time you've heard about under reported civilian deaths in Afghanistan? If the answer is no, then you have absolutely nothing to contribute here. Zero. If the answer is yes to either, then what exactly did he do other than endanger additional civilians in exchange for jerking his ego? Exactly! Nothing! And pointing this out has absolutely nothing to do with your irrational rant.
Reality: Out of the thousands of records only three records contain a name of an "informant".
Reality is right. Get it into your heads that zero names need be provided to compromise a source. Its extremely likely, and in fact, extremely common, for an informant to be identified without ever need knowing their name.
The reality is, this prick does not know or understand what constitutes a source being compromised. The fact he and others believe they do know means they are an egotist to the extreme. Not to mention a traitor. Not to mention, complete indifference about the blood he has on his hands.
Its been widely reported the Taliban have long tracked down informants and collaborators. They are frequently picked up, tortured for days at a time, horribly murdered and frequently beheaded. Its not uncommon for them to then simply murder the entire family afterwards. They then repeat with any names they were able to torture out of the poor fellow. The fact this is well known is exactly why informants and collaborators actively seek anonymity.
The reality is, the wikileaks traitor deserves the same fate he so willingly begs to happen to others. The fact he's a traitor just so he can jerk off his ego makes him all the more despicable.
A leaked page frequently causes fragmentation. Under memory pressure you've now directly inflicted additional I/O, a loss of continuous memory, and now imposing a requirement of yet additional paging pressure.
The saner solution is to simply, periodically, restart your application. Followed by, getting it updated as soon as a fix is available.
It was inescapably implied. Go re-read it. By definition, any system which requires non-stop operation and uptime measured in years is exactly as I described. After all, the entire premise is that these are requirements and even moreso, paging is to be used to avoid application restarts and/or system reboot so as to work around a horrible memory leak.
Swap space is useful on Linux LAPTOPS, TABLETS and sometimes even DESKTOPS/WORKSTATIONS for suspend to disk.
Someone else already provided an excellent summary. But in a nut shell, swapping is an entire process at a time while paging is typically least frequently used pages within that process. Swapping typically leads to linear and I/O while paging typically does not.
Its for historic reasons why paging and swapping are frequently intermixed - just as the two implementations frequently were. Just the same, the distinction is important to understand when it comes time to allocate a paging area.
Quoting Andrew Morton:
Good point - and something I had forgotten about. It wasn't always so. But, do keep in mind when creating a pagefile on top of a filesystem, the file may be non-continuously allocated, especially if the filesystem has existed and been heavily used of some time. And the allocation is completely at the mercy of the underlying filesystem. Which means, its very reasonable, though certainly not a requirement, for paging via a file on top of a filesystem to be slower than direct paging partition access; which is assured to be continuous.
I've yet to encounter a sane system that does swapping well. Especially Windows is notorious of using the swapfile, even though memory is not filled yet. Why do I want diskwrites/reads before my memory is used up? I don't, and since I'm well below my 4GB of memory, I erase the swapfile instead and the system runs that much more smoothly.
That's a good question and actually has a good answer.
Windows implements paging using a completely different approach than does Linux and most Unixes. Basically, everything gets paged. Which is to say, back-stored to a page file. When memory pressure requires paging, they need only release the page in memory because its already paged to disk; presumably when disk I/O was not at a premium. Once the page is released it can immediately be made available to the application requiring it. In doing so they have prevented an entire write cycle when I/O latency and/or bandwidth is at a premium, and saved the corresponding latency to the paging activity.
This is why Windows uses lots of page space and why they recommend well over physical memory be alloted to page files.
Is there a modern OS with a VM manager that horrible?
You're mis-attributing the issue. The issue is not one of a poor VM. The issue is one of a poor admin. The VM is attempting to honor the configuration which the admin provided. By providing massive page area the admin has instructed the VM/paging system to suffer massive performance loss in exchange for not returning out of memory errors.
These days my home server has 8GB of RAM and each of its drives can sustain about 80MB/s throughput, so writing out the entire contents of RAM would take about... 100 seconds.
That's an extremely simplistic way of looking at it. Paging rarely happens entirely linearly; at least not because of memory pressures. Worse, paging is triggered because of memory pressure. This is why others have referred to it as thrashing - because it causes exactly that. So rather than a linear write of 8GB, you're now looking at non-linearly read/write cycles, on (typically) 4KB page boundaries, whereby some portion of that 8GB is very likely to be part of a cyclic, read/write thrash. And this is why the current paging algorithms are so damn complex and frequently, completely hose corner cases.
Here's an extremely simplified example. Application X and Y both require memory. In order to satisfy the demand, both X and Y must be paged. Since X is currently running, parts of (pages) Y is paged first. But, since we want to be smart about this, we only page out the least frequently used pages of Y, which need not be linear in RAM - and in fact, is likely to not be so. So, now we have a good chunk of Y paged out and the pages in RAM are freed and then committed to X. X uses the memory and now its time for Y to run. Repeat this cycle over and over. Over time, the chances of the paged activity coming even close to linear access on disk becomes more and more unlikely and these two application's paging activity becomes ever more interleaved on disk.
Now, add a memory leak to the above. Since the smallest granularity is 4KB, it creates large opportunities for fragmentation. Imagine one application having multiple data structures which fit within that 4KB page. Let's say 1/3 of that page is leaked. That 1/3 prevents reaping and since the other 2/3 is considered hot while 1/3 is cold, it may in become a candidate for paging with heavy pressure. In turn, you're now shuffling leaked memory to and fro disk all the while making less memory available to the entire OS. In short, you've dramatically harmed performance by reduced available continuous memory, larger scatter/gather and more random read/write cycles.
Now imagine a dozens processes rather than just two. You'll need a tent and coffee near you're keyboard because you'll be waiting a while. And the term, "thrashing", absolutely is appropriate here. As you can see, its really not about a single, simply, linear, 8GB write.
Slashdot Mirror
Distilled water and tap water basically will have the same effect with regards to depletion of minerals.
That's simply not true.
Water is a natural solvent. It will also bond, by various means, with many things. Water which already is "full" of minerals will strip the body of fewer minerals simply because it can hold fewer "new" minerals. On the other hand, distilled water will naturally absorb the body's minerals, causing them to be urinated out.
As a result, measuring mineral content in urine will likely so similar results but for completely different reasons. In one case, the minerals are there because they were already present in the water. In the second case, the minerals will be there because they were removed from the body. This is true for all naturally occurring water and is why minerals are present in water in the first place. Why would you believe water magically works differently inside the body than it does outside the body?
but it does taste much different from mineral water?
You absolutely can taste the difference. If you can't, you likely abuse your buds by smoking or drink TONS of sugary drinks.
The minerals in water is the primary reason water tastes differently in different parts of town and all across the country. The flavor of mineral water, at least in modern times, is the reason why mineral water is so popular around the world.
If you can't tell the difference between distilled water and mineral water, you have something wrong with your taste buds, the "mineral water" is lacking much in the way of minerals, or you are in need of serious health/dietary changes which do not negatively effect your ability to taste.
Your body absolutely MUST be supplemented with minerals. Most people obtain their supplemental minerals by drinking water. If you are drinking distilled water, you are likely not getting enough minerals. Distilled water is good for ironing clothes, pouring into your radiator, and a few other odds and ends, but should generally not be any significant part of your diet unless you have health conditions which require otherwise. In which case, you'll likely need to be on mineral pill supplements.
As for possible causes, it could be any number of things. Unless their schools have been environmentally tested for vapor emissions from a variety of sources, suggesting the problems are in any way, shape, or form associated with WIFI is both stupidity at its worst and quackery.
Did you know carpet and mastics (glues) frequently emit toxic/carcinogenic vapors? Some wood products do too. But by in large, unless something has gone terribly wrong with an installation, these almost always normally dissipate over time. Not to mention, if there is a potential problem under the foundation, concrete works wonderfully to literally wick nasties from the ground directly into a building.
Mold is also a possibility. Furthermore, if the plumbing is very old, it could be a water born issue.
Psychosomatic illness is always a possibility. Such issues are not uncommon and particularly, if they have a quack of a nurse which may be feeding "wellness" information to students, may explain everything too.
Lastly, just as many others have pointed out, its sounds a lot like what happens in a high stress environment. School-itis seems, by far, the most likely explanation.
The fact that MySQL sucks as bad as it does works for Oracle, and if they actually kill it, they risk losing revenue!
IMOHO, the problem with MySQL+Oracle is that it doesn't make sense for anyone but Oracle. The skillset gap between MySQL and Oracle is MASSIVE! So when a project out grows MySQL, its not an automatic Oracle upgrade. Really, what's the incentive other than some very loose association via branding?
On the other hand, PostgreSQL completely encompasses MySQL (required skill sets and capability) and has a huge overlap with Oracle. To get your feet wet with PostgreSQL, the required skill set is only slightly larger than MySQL. And on the other end, the required knowledge is still less than is required for Oracle; despite PostgreSQL frequently providing superior performance. This means you can stick with PostgreSQL from entry to fairly high end. And, once you actually outgrow PostgreSQL, if you ever do, you have commercial offerings like EnterpriseDB. Which means, your PostgreSQL knowledge is fully protected.
Anyone not considering PostgreSQL must have money, time, and skills to burn.
Until GPLv3, patents were not a concern in the least. The GPL license, until GPLv3, is strictly a copyright license. This is exactly why GPLv3 came into being; as, for example, patents can be used to restrict access where it would otherwise not be restricted by way of copyright.
Bullshit. It was fought in court. You can't even hire an attorney to represent you on the basis of, "I have a thing but I can't discuss it with you." It is unconstitutional for a gag order to deny constitutional privileges. Not only that, but no such thing took place.
It really doesn't matter if its released under the GPL or not. Not in the least. Largely, the GPL does not address matters of patents. That's what created the GPLv3. Having royalty free copyright access does not speak at all to patent accessibility.
Having said that, Oracle/Sun's patents are complete bullshit and should never have been granted. All of the stated patents have a huge body of pre-existing art.
I sure wish the patent examiners were forced to pay legal fees out of their retirement accounts. If this were enacted, I'm sure the number of completely illegitimate patents would suddenly dry up overnight.
Turning off the GPS has a negligible difference in power consumption. For it to make a big difference, an application has to be using it. Just having the GPS in warm standby (enabled) typically will not exceed 5% or so of battery life. For most people this is not noticeable. Better to uninstall whatever poorly written applications you have installed.
Also, if you turn off your GPS, the next time you use it, especially if you move far from the last location you had it enabled, you might find it takes up to ten minutes to determine your GPS position.
If you find you must turn off your GPS to make your battery last, its almost a guarantee you have an absolutely crappy application installed on your phone. You can help locate it by reviewing your applications which requires fine grained location information.
So much for the first amendment.
WTF is wrong with people on slashdot these days?!?! Seriously!?
The means the court system worked. The first amendment worked. But, just because the FBI gave up is not reason to destroy an investigation. The COURT didn't allowing him to destroy an ongoing investigation, and in the mean time his first amendment rights were not harmed in any way.
Gag orders are very important tools. To be universally against gag orders is to be pro-crime. The first amendment is not in place to facilitate criminal activity. Its there to provide equal protection. Every way I look at this, it looks like it worked perfectly.
By that logic, loose lips don't sink ships? Wow...you're brilliant!
I have no idea why people on /. think no nation should have secrets. Until we all live in Utopia, anyone who thinks such a thing are absolute fucking idiots. The literal definition.
I think we have a serious case of egotism and idiocy run amok on slashdot here lately.
I second this. The Spring engine has many good games (mods) available. Games range from Total Annihilation clones to WWII to truly unique game play like Kernel Panic. There is even a Star Wars mod (looks awesome) nearing completion.
The game play is fun. The graphics are decent. There is an active community in their forums. The developers (engine and mods) are accessible and friendly. There are even a variety of AIs to choose from; many actively being supported and developed. Some mods even have their own, custom AI. As such, the game supports multi-player (up to 8v8 from what I've seen - though may not be an actual engine limit) and single player equally well.
Spring RTS truly is an open source gem. If you haven't tried it, you're missing out. If its been a while since you've tried it, you should try again. Also note, they are nearing completion of a major new release of the engine which drastically improves multi-threading.
It appears Spring RTS is beginning to attract hardcore AI developers, including AI students. There appears to be at least one project (in Python) in development to specifically cater to these AI developers. So I expect the state of AI development will continue to richly develop over time. If AI development is of interest to you, Spring may be a viable source of research and development. AIs can currently be written in C/C++, Java, Lua, and I believe C#. The Python AI interface becomes available with the upcoming engine release.
So go check it out! It has something for everyone!
Opps...was suppose to read, "Patent/trademark law..."
So instead of "Citation needed", should people say "Please provide Google keywords" instead?
Again - douche bag. Patent law is hardly some obscure Internet reference. As my original post said, go to your nearest search engine. If YOU are ignorant of a subject, its hardly everyone else's job to rectify YOUR ignorance.
This particular subject is extremely well known and extremely well covered on the Internet (including /.) and is extremely easy to get information on, assuming your not a dumb, lazy, douche bag. In short, rather than say, "Citation needed", you should have gone to your nearest search engine and shown the world you're neither dumb or lazy.
Contrary to popular trends, it is not everyone else's job to educate you. And if, after making a good faith effort to find the material on your own, its not that hard to say, "I couldn't find what you were talking about. I did searches for x, y, and z. Can you please provide a reference of some kind?" Which is infinitely better than the, "Bullshit! Prove it!", which is all too often associated with, "Citation needed". The former is passive aggressive while the later is polite and indicates you are not a dumb, lazy, douche bag.
Citation needed.
Unlike other areas of IP, trademark must be actively defended. If you don't inform others of your trademark, you are not defending it. The fact a trademark was not previously filed and according to the gp post, declaration of trademark was never made. As such, it does appear safe to assume they have never made any effort to trademark or defend a trademark.
Also, this is not Wikipedia or a researched document. "Citation needed". means you are incapable of effective, polite, communication and is frequently a sign of a dumb, lazy, douche bag. All too often, "Citation needed", means the author is too dumb and lazy to use a search engine. If you are not a douche bag, please stop using that phrase when outside of its proper context.
Its been suggested some planes in WWII, in dives, were actually breaking/transitioning the sound barrier. This is why many planes never pulled out of their dive and crashed into the ground. The reason being, not enough control surface to function with the shock waves (compressibility) to allow for maneuvering to avoid their fate. This was, in fact, a fate repeated by many test pilots who attempted to break the sound barrier. It wasn't until the flying control surface was created that the problem was licked.
"A while" was never the point of contention. The, "I do x, y, and z", to address problem which almost never happens, to prevent updating a buggy application (or simply periodically restarting it), such that one can maintain an uptime of "years" is the point of contention. Its such a point of contention, I'd call it, "complete bullshit."
Two wrongs do not make a right. The fact idiots such as yourself keep raising this point only indicates you believe otherwise. And to further give credence to your lacking intelligence, rejection of one is absolutely not the same as supporting the other.
I don't know why so many slashdotters insist on adopting such moronic rational, but all basis of thought along those lines is immediately invalidated. Which sadly, seems to represent a disproportionate number of responses to this article.
Your logic with a general statement; 1+1=3 and 2+2=5
Me: 1+1 does not equal 3.
You: Hah! Stop saying 2+2=5!
Notice the assertion of 1+1 not equaling 3 is not the same thing as asserting 2+2 equals 5. Its the same thing here. Calling him out as the disgusting egotist he is, is not the same thing as being pro-murder. Get a grip!
Lastly, is this the first time you've heard about civilian deaths in a warzone? Is this the first time you've heard about under reported civilian deaths in Afghanistan? If the answer is no, then you have absolutely nothing to contribute here. Zero. If the answer is yes to either, then what exactly did he do other than endanger additional civilians in exchange for jerking his ego? Exactly! Nothing! And pointing this out has absolutely nothing to do with your irrational rant.
Right, the Taliban does all this stuff, but they themselves are blameless. In fact, all these deaths are really Assange's fault.
I said no such thing. Your logic and reading comprehension are equally broken.
Reality: Out of the thousands of records only three records contain a name of an "informant".
Reality is right. Get it into your heads that zero names need be provided to compromise a source. Its extremely likely, and in fact, extremely common, for an informant to be identified without ever need knowing their name.
The reality is, this prick does not know or understand what constitutes a source being compromised. The fact he and others believe they do know means they are an egotist to the extreme. Not to mention a traitor. Not to mention, complete indifference about the blood he has on his hands.
Its been widely reported the Taliban have long tracked down informants and collaborators. They are frequently picked up, tortured for days at a time, horribly murdered and frequently beheaded. Its not uncommon for them to then simply murder the entire family afterwards. They then repeat with any names they were able to torture out of the poor fellow. The fact this is well known is exactly why informants and collaborators actively seek anonymity.
The reality is, the wikileaks traitor deserves the same fate he so willingly begs to happen to others. The fact he's a traitor just so he can jerk off his ego makes him all the more despicable.
Considering I qualified my statements with "under pressure", the only person who misunderstood, is you.
A leaked page frequently causes fragmentation. Under memory pressure you've now directly inflicted additional I/O, a loss of continuous memory, and now imposing a requirement of yet additional paging pressure.
The saner solution is to simply, periodically, restart your application. Followed by, getting it updated as soon as a fix is available.
It was inescapably implied. Go re-read it. By definition, any system which requires non-stop operation and uptime measured in years is exactly as I described. After all, the entire premise is that these are requirements and even moreso, paging is to be used to avoid application restarts and/or system reboot so as to work around a horrible memory leak.
Swap space is useful on Linux LAPTOPS, TABLETS and sometimes even DESKTOPS/WORKSTATIONS for suspend to disk.
No one said otherwise.
Someone else already provided an excellent summary. But in a nut shell, swapping is an entire process at a time while paging is typically least frequently used pages within that process. Swapping typically leads to linear and I/O while paging typically does not.
Its for historic reasons why paging and swapping are frequently intermixed - just as the two implementations frequently were. Just the same, the distinction is important to understand when it comes time to allocate a paging area.
Quoting Andrew Morton:
Good point - and something I had forgotten about. It wasn't always so. But, do keep in mind when creating a pagefile on top of a filesystem, the file may be non-continuously allocated, especially if the filesystem has existed and been heavily used of some time. And the allocation is completely at the mercy of the underlying filesystem. Which means, its very reasonable, though certainly not a requirement, for paging via a file on top of a filesystem to be slower than direct paging partition access; which is assured to be continuous.
I've yet to encounter a sane system that does swapping well. Especially Windows is notorious of using the swapfile, even though memory is not filled yet. Why do I want diskwrites/reads before my memory is used up? I don't, and since I'm well below my 4GB of memory, I erase the swapfile instead and the system runs that much more smoothly.
That's a good question and actually has a good answer.
Windows implements paging using a completely different approach than does Linux and most Unixes. Basically, everything gets paged. Which is to say, back-stored to a page file. When memory pressure requires paging, they need only release the page in memory because its already paged to disk; presumably when disk I/O was not at a premium. Once the page is released it can immediately be made available to the application requiring it. In doing so they have prevented an entire write cycle when I/O latency and/or bandwidth is at a premium, and saved the corresponding latency to the paging activity.
This is why Windows uses lots of page space and why they recommend well over physical memory be alloted to page files.
Is there a modern OS with a VM manager that horrible?
You're mis-attributing the issue. The issue is not one of a poor VM. The issue is one of a poor admin. The VM is attempting to honor the configuration which the admin provided. By providing massive page area the admin has instructed the VM/paging system to suffer massive performance loss in exchange for not returning out of memory errors.
These days my home server has 8GB of RAM and each of its drives can sustain about 80MB/s throughput, so writing out the entire contents of RAM would take about... 100 seconds.
That's an extremely simplistic way of looking at it. Paging rarely happens entirely linearly; at least not because of memory pressures. Worse, paging is triggered because of memory pressure. This is why others have referred to it as thrashing - because it causes exactly that. So rather than a linear write of 8GB, you're now looking at non-linearly read/write cycles, on (typically) 4KB page boundaries, whereby some portion of that 8GB is very likely to be part of a cyclic, read/write thrash. And this is why the current paging algorithms are so damn complex and frequently, completely hose corner cases.
Here's an extremely simplified example. Application X and Y both require memory. In order to satisfy the demand, both X and Y must be paged. Since X is currently running, parts of (pages) Y is paged first. But, since we want to be smart about this, we only page out the least frequently used pages of Y, which need not be linear in RAM - and in fact, is likely to not be so. So, now we have a good chunk of Y paged out and the pages in RAM are freed and then committed to X. X uses the memory and now its time for Y to run. Repeat this cycle over and over. Over time, the chances of the paged activity coming even close to linear access on disk becomes more and more unlikely and these two application's paging activity becomes ever more interleaved on disk.
Now, add a memory leak to the above. Since the smallest granularity is 4KB, it creates large opportunities for fragmentation. Imagine one application having multiple data structures which fit within that 4KB page. Let's say 1/3 of that page is leaked. That 1/3 prevents reaping and since the other 2/3 is considered hot while 1/3 is cold, it may in become a candidate for paging with heavy pressure. In turn, you're now shuffling leaked memory to and fro disk all the while making less memory available to the entire OS. In short, you've dramatically harmed performance by reduced available continuous memory, larger scatter/gather and more random read/write cycles.
Now imagine a dozens processes rather than just two. You'll need a tent and coffee near you're keyboard because you'll be waiting a while. And the term, "thrashing", absolutely is appropriate here. As you can see, its really not about a single, simply, linear, 8GB write.
Excellent summary.