but it improves performance and gains persistence across requests by handling all its requests within a single process
Persistance between browswer invocations can only be done via a cookie, hidden form variable or ip (which is not reliable). So saying that the single process gives you magical persistance is misleading - no? This same can be done with cgi simple and via apache modules.
On thing a persistent single process can do for you is bring down the house with a memory leak.
You symbolic link just as before. There is a script (although it could be a feature of the os or file system) that creates these links to shared libraries if you want.
Re:I wouldn't buy anything from this author
on
Learning Perl, 4th Ed.
·
· Score: 4, Informative
I just read the last 40 posts of one Mr Randal L. Schwartz on PerlMonks as per his link here and found none to be aggressive or unprofessional and instead helpful if not patient. Sorry AC you must have some axe to grind.
2) Second law of thermodynamics. While another somewhat weak argument in the eyes of many evolution proponents, the significance of a mutation actually increasing the intellectual properties of an organism would be a major scientific find of unbelievable proportions and would indicate that our analysis of closed systems needs to be rethought. Specifically, I'm talking about DNA and the "information argument". Species don't just get smarter, yet it is clear that we are more intelligent than dogs, for instance. The hard part is determining *why*.
Numerous issues with this one. First it is wrong to think of evolution of lifeforms as increasingly getting "smarter" or "better". If an attribute provides a survival or propagation advantage it will be selected and maintained. If being dumber presents a survival advantage then this quality will be selected.
As far as the second law arguement, as is noted in various places, life on planet earth is not a closed system. Life just inserts itself within the chain of energy conversion path (Solar to Low Level Heat) and constantly generates entropy while doing so.
Consider a thought experiment. Say you have a Bingo style box with several different shaped balls being batted around by an air stream. If you cut in the top of the box a hole that conforms to one of the balls, say a triangle shape, you would constantly decrease in entropy in the state of the balls since you would be filtering out the triangle shaped balls and increasing order within the system. However if you consider the complete system including the power to drive the balls you have a total increase in the entropy by converting high quality electral energy into low quality heat. In the above, example the hole in the top of the box is akin to natural selection as it is a filter that differentially selects a quality combine replication and well you know...
Another examples exists of unclosed systems becoming increasingly ordered (lower entropy) such as different size rock on the beach with wave action.
The sources you mentioned are from the carbon cycle.
In the carbon cycle, plants absorb carbon dioxide from the atmosphere combine it with water and nutrients from the soil, to build their substance and structure via the process of photosynthesis. Animals, such as the cows or humans eat the plants or algae and use the carbon to build their own tissues. Animals return carbon dioxide into the air when they breathe, pass gas, and when they die and decompose. The carbon atoms then be used in a new plant material. on and on and on.
Soures of carbon from burnt fossil fuels are releasing fixed carbon into the environment and are adding to the total carbon load in the cycle. Source of energy such as solar, wind, nuclear and geothermal do not add to the carbon load.
energy needed to make a solar cell is in the same order as the amount that it absorbs from the sun
That is a common myth that may have been true decades ago. Modern solar panels have a energy payback of around two years of operation and have expected lifetimes of well over twenty years.
Actually the safety factor is not just perception. Light trucks and SUV's crashing into cars accounts for the majority of fatalities in vehicle-to-vehicle collisions. Form this older article:
Of the 5,259 fatalities caused when light trucks struck cars in 1996, 81 percent of the fatally injured were occupants of the car. In multiple-vehicle crashes, the occupants of the car are four times more likely to be killed than the occupants of the SUV. In a side-impact collision with an SUV, car occupants are 27 times more likely to die.
A more recent article in the WSJ reported that if a SUV and a sedan collide the occupants in the sedan were 9 times more likey to die than the those in the the SUV.
kedit is an amazing piece of software. Kedit provides a simple interface for things like:
Manipulating multiple files in the ring buffer. Such as search and replace, Tiled display, etc.
Folding. Selectively display lines based on simple commands like:
==>all "word" and
==>less "removeword" and
==>add
I have yet to get vim do this.
Easy block or column editing
Incredably fast when editing large megabyte files.
Handling nl and cr all form imaginable.
Once a year I contact the company and request a linux port and once a year they tell me the product is dead and there will be no ports or updates. I wish they would open source this product or someone buys them out and port this code over.
How is it that hardly any major religion has looked at science and concluded, 'This is better than we thought! The Universe is much bigger than our prophets said, grander, more subtle, more elegant'? Instead they say, 'No, no, no! My god is a little god, and I want him to stay that way.' A religion, old or new, that stressed the magnificence of the Universe as revealed by modern science might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths.
What is the budget for iraq this year something like 100 Billion? For what? The majority of Iraqi's and arabs in general hate us even more than before and we have significantly increase our target potential for the future. Bush the Wiser and Senior points this out in his book that:
We would have been forced to occupy Baghdad and, in effect, rule Iraq. The coalition would instantly have collapsed, the Arabs deserting it in anger and other allies pulling out as well. Under the circumstances, there was no viable "exit strategy" we could see, violating another of our principles. Furthermore, we had been self-consciously trying to set a pattern for handling aggression in the post-Cold War world. Going in and occupying Iraq, thus unilaterally exceeding the United Nations' mandate, would have destroyed the precedent of international response to aggression that we hoped to establish. Had we gone the invasion route, the United States could conceivably still be an occupying power in a bitterly hostile land. It would have been a dramatically different -- and perhaps barren -- outcome.
Doonsbury used this quote in one of his cartoons with a punchline that it was too bad GWB was apparently a child left behind and was unable to read his Dads book.
Form a post above I learned that Quayle had actually proposed spending half our military budget on space development. Eventhough I probably disagree with Quayle on every other issue he would have received my vote.
Kudos to Buinessweek as one of only a few news sources that got the SCO, linux and MyDoom virus story right. From the fine article:
In January, 2004, a new virus called MyDoom attacked the Web site of the SCO Group Inc. (SCOX ), a software company that claimed the open-source Linux program violated its copyrights. Most security experts suspected the virus writer was a Linux fan seeking revenge. They were wrong. While the SCO angle created confusion, MyDoom acted like a Trojan horse, infecting millions of computers and then opening a secret backdoor for its author.
McBride however is remembered as calling the resulting DOS attacks "the darker side of the Linux community we've been fighting."
Yes you missed something. Matlab sells software subscriptions for around $2k per year and extra for application specific modules - I would call that commercial.
They ticked me off last year when we late for our subscription payment and they charged us 20% for an adminstration fee which accounted for around $3500.
This is why I read above about SciLab with interest. I would love to find a solution that meets our needs so can cancel our subscription and hopeful convince others where I work to convert.
Mathworks has achieved a sort of monopolist position with certain engineering and scientific fields and behaves accordingly
So if mass increases as speed increases wouldn't some of your bodily processes start to take on some rather bizarre side effects.
Imagine your heart trying to pump blood which has tripled in mass per unit volume. Also might be advisable to visit the white throne before doing any excursions near light speed. Can you imagine having to... well... you know after several mass multiplications.
Re:Doubles development time.
on
Perl Medic
·
· Score: 1
I hate responding to a coward but 5 to 10 minutes try 5 to 10 man days. The perl program actually keeps up the process feeding it and I may actually deploy with the perl program and throw the c version away since the long term maintenance will be less. Try putting a name to your comments and you will be less off handed and will think a bit for responding.
Re:Use a real language.
on
Perl Medic
·
· Score: 1
Give me an example where Perl 10000 or 100000 slower than perl. It doesn't exist.
Since Rex-Exp is pattern matching from the benchmark link provided for test called Reg-Exp
Perl 2.56 Cpu Lines of Code 24 C Gcc 2.98 Cpu Lince of code 98
gasp Perl is faster.
Re:thanks for straightening me out.
on
Perl Medic
·
· Score: 2, Interesting
You are the only one proposing the use of perl for everthing. Ever heard of a strawman, nice try but it is a weak attempt to prove whatever your point is.
Are compiled languages faster than script style languges? Yes, typically. Are compiled languages always the best approach. No.
Lets take a real world example. Recently I need to take a stream of data that was interleaved two byte time series. I had to demultiplex it and reverse the endian. I prototyped in perl and wrote the service version in C. Performance difference between C and Perl was 12%. Development time, even with the prototype was difference was more than double and with 4 times the code to maintain.
I have similar stats with C versus Matlab for numerical processing.
Re:Use a real language.
on
Perl Medic
·
· Score: 4, Insightful
on what test? Take a fairly common task - word counting
Perl 1.0 cpu time 11 lines of code. gcc 0.3 cpu time 182 lines of code.
So i can distort reality also and say while C can sometimes be as fast as 3 times faster it will take 1700% more lines of code.
Slashdot Mirror
Uhmm thermopile there probably are 1.6% of women out there who would sleep with you but they would be what I would call "high risk"!
but it improves performance and gains persistence across requests by handling all its requests within a single process
Persistance between browswer invocations can only be done via a cookie, hidden form variable or ip (which is not reliable). So saying that the single process gives you magical persistance is misleading - no? This same can be done with cgi simple and via apache modules.
On thing a persistent single process can do for you is bring down the house with a memory leak.
Mozilla users get Hot Sauce at a discount.
---------------
You symbolic link just as before. There is a script (although it could be a feature of the os or file system) that creates these links to shared libraries if you want.
Consider if NASA used accessible build web logs to track the developement of a space probe or mission.
It would definitely increase public interest and be educational, bring a window into the everyday world of engineering.
Also imagine the wizkid who finds the odd metric-to-english conversion problem and saves the day.
Marie Sharps is hot
I just read the last 40 posts of one Mr Randal L. Schwartz on PerlMonks as per his link here and found none to be aggressive or unprofessional and instead helpful if not patient. Sorry AC you must have some axe to grind.
Yep, the military probably spends $250,000 for just ass wipe per day in Iraq.
2) Second law of thermodynamics. While another somewhat weak argument in the eyes of many evolution proponents, the significance of a mutation actually increasing the intellectual properties of an organism would be a major scientific find of unbelievable proportions and would indicate that our analysis of closed systems needs to be rethought. Specifically, I'm talking about DNA and the "information argument". Species don't just get smarter, yet it is clear that we are more intelligent than dogs, for instance. The hard part is determining *why*.
Numerous issues with this one. First it is wrong to think of evolution of lifeforms as increasingly getting "smarter" or "better". If an attribute provides a survival or propagation advantage it will be selected and maintained. If being dumber presents a survival advantage then this quality will be selected.
As far as the second law arguement, as is noted in various places, life on planet earth is not a closed system. Life just inserts itself within the chain of energy conversion path (Solar to Low Level Heat) and constantly generates entropy while doing so.
Consider a thought experiment. Say you have a Bingo style box with several different shaped balls being batted around by an air stream. If you cut in the top of the box a hole that conforms to one of the balls, say a triangle shape, you would constantly decrease in entropy in the state of the balls since you would be filtering out the triangle shaped balls and increasing order within the system. However if you consider the complete system including the power to drive the balls you have a total increase in the entropy by converting high quality electral energy into low quality heat. In the above, example the hole in the top of the box is akin to natural selection as it is a filter that differentially selects a quality combine replication and well you know...
Another examples exists of unclosed systems becoming increasingly ordered (lower entropy) such as different size rock on the beach with wave action.
The sources you mentioned are from the carbon cycle.
In the carbon cycle, plants absorb carbon dioxide from the atmosphere combine it with water and nutrients from the soil, to build their substance and structure via the process of photosynthesis. Animals, such as the cows or humans eat the plants or algae and use the carbon to build their own tissues. Animals return carbon dioxide into the air when they breathe, pass gas, and when they die and decompose. The carbon atoms then be used in a new plant material. on and on and on.
Soures of carbon from burnt fossil fuels are releasing fixed carbon into the environment and are adding to the total carbon load in the cycle. Source of energy such as solar, wind, nuclear and geothermal do not add to the carbon load.
energy needed to make a solar cell is in the same order as the amount that it absorbs from the sun
That is a common myth that may have been true decades ago. Modern solar panels have a energy payback of around two years of operation and have expected lifetimes of well over twenty years.
==>all "word" and
==>less "removeword" and
==>add
I have yet to get vim do this.
Once a year I contact the company and request a linux port and once a year they tell me the product is dead and there will be no ports or updates. I wish they would open source this product or someone buys them out and port this code over.
Doonsbury used this quote in one of his cartoons with a punchline that it was too bad GWB was apparently a child left behind and was unable to read his Dads book.
Form a post above I learned that Quayle had actually proposed spending half our military budget on space development. Eventhough I probably disagree with Quayle on every other issue he would have received my vote.
McBride however is remembered as calling the resulting DOS attacks "the darker side of the Linux community we've been fighting."
"funny" we need a modifier "brilliant" if you had a single Plutonium atom at the center of your brain you would understand.
mod points please. This is the list I was looking for....
Yes you missed something. Matlab sells software subscriptions for around $2k per year and extra for application specific modules - I would call that commercial.
They ticked me off last year when we late for our subscription payment and they charged us 20% for an adminstration fee which accounted for around $3500.
This is why I read above about SciLab with interest. I would love to find a solution that meets our needs so can cancel our subscription and hopeful convince others where I work to convert.
Mathworks has achieved a sort of monopolist position with certain engineering and scientific fields and behaves accordingly
So if mass increases as speed increases wouldn't some of your bodily processes start to take on some rather bizarre side effects.
Imagine your heart trying to pump blood which has tripled in mass per unit volume. Also might be advisable to visit the white throne before doing any excursions near light speed. Can you imagine having to... well... you know after several mass multiplications.
I hate responding to a coward but 5 to 10 minutes try 5 to 10 man days. The perl program actually keeps up the process feeding it and I may actually deploy with the perl program and throw the c version away since the long term maintenance will be less. Try putting a name to your comments and you will be less off handed and will think a bit for responding.
Give me an example where Perl 10000 or 100000 slower than perl. It doesn't exist.
Since Rex-Exp is pattern matching from the benchmark link provided for test called Reg-Exp
Perl 2.56 Cpu Lines of Code 24
C Gcc 2.98 Cpu Lince of code 98
gasp Perl is faster.
You are the only one proposing the use of perl for everthing. Ever heard of a strawman, nice try but it is a weak attempt to prove whatever your point is.
Are compiled languages faster than script style languges? Yes, typically. Are compiled languages always the best approach. No.
Lets take a real world example. Recently I need to take a stream of data that was interleaved two byte time series. I had to demultiplex it and reverse the endian. I prototyped in perl and wrote the service version in C. Performance difference between C and Perl was 12%. Development time, even with the prototype was difference was more than double and with 4 times the code to maintain.
I have similar stats with C versus Matlab for numerical processing.
on what test? Take a fairly common task - word counting
Perl 1.0 cpu time 11 lines of code.
gcc 0.3 cpu time 182 lines of code.
So i can distort reality also and say while C can sometimes be as fast as 3 times faster it will take 1700% more lines of code.
This is when you need the "sick but really funny" mod selection.
That is why I use CVS to manage my SVN repositories :)
Sorry fella I have a trademarks on the letters "T", "H" and "E" in both case forms.