Re: Is Scheme/LISP faster than C/C++
On Jun 14, 3:34 pm, Raymond Toy toy.raym...@gmail.com wrote: There was even one example where the C compiler made spectacularly bad code. I only needed 6 pointer registers (the arch has 8), but the compiler decided to use only one or two and spilled and reloaded them from the stack for each use. Yay! That's one of the worst compiler stories I've heard since 1979! How awful! -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
Sorry, I dont have access to the journal papers ... or I would do research myself. On Jun 14, 10:10 am, bolega gnuist...@gmail.com wrote: Quoting the following post :- I am looking for expert opinions http://groups.google.com/group/gnu.emacs.help/browse_thread/thread/54... Probably doesn't meet your intent, but this is a really impressive bit of (whacky) art: Lisp runs faster than C. Once you get more time away from screwing Palestinians, and other false-flags, you will find ideas like these How to make Lisp go faster than C Didier Verna Abstract Contrary to popular belief, Lisp code can be very ef- cient today: it can run as fast as equivalent C code or even faster in some cases. In this paper, we explain how to tune Lisp code for performance by introducing the proper type declarations, using the appropriate data structures and compiler information. We also explain how e ciency is achieved by the compilers. These techniques are applied to simple image process- ing algorithms in order to demonstrate the announced performance on pixel access and arithmetic operations in both languages. === Standard Disclaimer, nothing personal http://www.youtube.com/watch?v=lX18zUp6WPY http://www.youtube.com/watch?v=XQapkVCx1HI http://www.youtube.com/watch?v=tXJ-k-iOg0M Hey Racist and INcompetent FBI Bustards, where is the ANTHRAX Mailer ? Where are the 4 blackboxes ? Where are the Pentagon Videos ? Why did you release the 5 dancing Israelis compromising the whole 911 investigation ? If the Dubai Police can catch Mossad Murderers and put the videos and Iranian Police can why cant you put the Pentagon Videos ? If Iran police can put the AMERICAN TERRORIST, Riggi and puting on INTERNATIONAL MEDIA a day after catching him without TORTURE, why cant you put the INNOCENT patsies on the MEDIA. Why did you have to LIE about Dr Afiya Siddiqui and torture that Innocent little mother of 3 and smashing the skull of her one child ? http://www.youtube.com/watch?v=DhMcii8smxkhttp://www.youtube.com/watch?v=0SZ2lxDJmdg There are CRIMINAL cases against CIA CRIMINAL Bustards in Italian courts. FBI bustards paid a penalty of $5.8 million to Steven Hatfill, but only because he was a white. They got away with MURDER of thousands of Non-whites in all parts of the world. Daily 911 news :http://911blogger.com http://www.youtube.com/watch?v=tRfhUezbKLw http://www.youtube.com/watch?v=x7kGZ3XPEm4 http://www.youtube.com/watch?v=lX18zUp6WPY -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
On 6/14/10 10:17 AM, bolega wrote: Sorry, I dont have access to the journal papers ... or I would do research myself. This has what to do with Python? -- Stephen Hansen ... Also: Ixokai ... Mail: me+list/python (AT) ixokai (DOT) io ... Blog: http://meh.ixokai.io/ signature.asc Description: OpenPGP digital signature -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
On Jun 14, 10:17 am, bolega gnuist...@gmail.com wrote: Sorry, I dont have access to the journal papers ... or I would do research myself. On Jun 14, 10:10 am, bolega gnuist...@gmail.com wrote: Quoting the following post :- I am looking for expert opinions http://groups.google.com/group/gnu.emacs.help/browse_thread/thread/54... Probably doesn't meet your intent, but this is a really impressive bit of (whacky) art: Lisp runs faster than C. Once you get more time away from screwing Palestinians, and other false-flags, you will find ideas like these How to make Lisp go faster than C Didier Verna Abstract Contrary to popular belief, Lisp code can be very ef- cient today: it can run as fast as equivalent C code or even faster in some cases. In this paper, we explain how to tune Lisp code for performance by introducing the proper type declarations, using the appropriate data structures and compiler information. We also explain how e ciency is achieved by the compilers. These techniques are applied to simple image process- ing algorithms in order to demonstrate the announced performance on pixel access and arithmetic operations in both languages. === Standard Disclaimer, nothing personal http://www.youtube.com/watch?v=lX18zUp6WPY http://www.youtube.com/watch?v=XQapkVCx1HI http://www.youtube.com/watch?v=tXJ-k-iOg0M Hey Racist and INcompetent FBI Bustards, where is the ANTHRAX Mailer ? Where are the 4 blackboxes ? Where are the Pentagon Videos ? Why did you release the 5 dancing Israelis compromising the whole 911 investigation ? If the Dubai Police can catch Mossad Murderers and put the videos and Iranian Police can why cant you put the Pentagon Videos ? If Iran police can put the AMERICAN TERRORIST, Riggi and puting on INTERNATIONAL MEDIA a day after catching him without TORTURE, why cant you put the INNOCENT patsies on the MEDIA. Why did you have to LIE about Dr Afiya Siddiqui and torture that Innocent little mother of 3 and smashing the skull of her one child ? http://www.youtube.com/watch?v=DhMcii8smxkhttp://www.youtube.com/watc... There are CRIMINAL cases against CIA CRIMINAL Bustards in Italian courts. FBI bustards paid a penalty of $5.8 million to Steven Hatfill, but only because he was a white. They got away with MURDER of thousands of Non-whites in all parts of the world. Daily 911 news :http://911blogger.com http://www.youtube.com/watch?v=tRfhUezbKLw http://www.youtube.com/watch?v=x7kGZ3XPEm4 http://www.youtube.com/watch?v=lX18zUp6WPY Here is the paper : http://www.iaeng.org/IJCS/issues_v32/issue_4/IJCS_32_4_19.pdf Get ghostview which can show you better font display of the older types. I give good help and I ask people to spread the info in my sig by quoting it. The FAT per DIEM FBI bustards use our TAX PAYER MONEY and INCOMPETENCE is UNACCEPTABLE. = http://www.youtube.com/watch?v=lX18zUp6WPY http://www.youtube.com/watch?v=XQapkVCx1HI http://www.youtube.com/watch?v=tXJ-k-iOg0M Hey Racist and INcompetent FBI Bustards, where is the ANTHRAX Mailer ? Where are the 4 blackboxes ? Where are the Pentagon Videos ? Why did you release the 5 dancing Israelis compromising the whole 911 investigation ? If the Dubai Police can catch Mossad Murderers and put the videos and Iranian Police can why cant you put the Pentagon Videos ? If Iran police can put the AMERICAN TERRORIST, Riggi and puting on INTERNATIONAL MEDIA a day after catching him without TORTURE, why cant you put the INNOCENT patsies on the MEDIA. Why did you have to LIE about Dr Afiya Siddiqui and torture that Innocent little mother of 3 and smashing the skull of her one child ? http://www.youtube.com/watch?v=DhMcii8smxk http://www.youtube.com/watch?v=0SZ2lxDJmdg There are CRIMINAL cases against CIA CRIMINAL Bustards in Italian courts. FBI bustards paid a penalty of $5.8 million to Steven Hatfill, but only because he was a white. They got away with MURDER of thousands of Non-whites in all parts of the world. Daily 911 news : http://911blogger.com http://www.youtube.com/watch?v=tRfhUezbKLw http://www.youtube.com/watch?v=x7kGZ3XPEm4 http://www.youtube.com/watch?v=lX18zUp6WPY Conclusion : FBI bustards are RACIST and INcompetent. They could neither catch the ANTHRAX or 911 YANK/Jew criminals nor could they cover them up - whichever was their actual task. SLASH the SALARIES of FBI/CIA/NSA etc BUSTARDS into half all across tbe board, esp the whites/jew on the top. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
For crying out loud, the best any compiler can do is make optimal machine language. Many C compilers can do that over most inputs. So can many Lisp compilers if you give the right type data. So it's a moot point. The only point to discuss would be that Scheme - in the R5 version of the spec at least - doesn't have standard way to specify type data unless I am mistaken. Therefore you will find that Scheme compilers add their own syntax for it. Again we are led to a moot point. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
One point that might be interesting, you do include C++ in your post. Therefore some compare/contrast of C++ class member function invocation rate versus Lisp object method invocation rate might be meaningful. I'm sure if you Google back through comp.lang.lisp you will find plenty on it already. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
On 6/14/10 1:53 PM, fortunatus wrote: For crying out loud, the best any compiler can do is make optimal machine language. Many C compilers can do that over most inputs. So Is that why I had to use assembly code instead of C for some parts of my previous projects? There was even one example where the C compiler made spectacularly bad code. I only needed 6 pointer registers (the arch has 8), but the compiler decided to use only one or two and spilled and reloaded them from the stack for each use. Yay! Ray -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
fortunatus wrote: The only point to discuss would be that Scheme - in the R5 version of the spec at least - doesn't have standard way to specify type data unless I am mistaken. Therefore you will find that Scheme compilers add their own syntax for it. Again we are led to a moot point. One of the points of something like Chez Scheme is that it compiles standard Scheme, without additional static typing -- which, personally, I find rather annoying -- into code that is often quite competitive with C code if not faster. More specifically, there is nothing inherently slow about the Scheme language. While there are some things that are inherently expensive, they are not more expensive than the equivalent constructs in C by nature. Scheme can be compiled into very fast code, without resorting to tricks like type declarations, and there are real life compilers out there which do this. I've heard it said, it is easy to beat C compilers for fast code, it's just hard to beat them at benchmarks written for C. That is, do the same type of things as what Scheme gives you, such as lots of dynamic allocation and resizing, higher order functions, and closures, and you won't find C faster. Benchmarks to compare C with Scheme often don't compare the things Scheme is good at, but focus only on the static things that C was designed for. Aaron W. Hsu -- http://mail.python.org/mailman/listinfo/python-list
Re: Is Scheme/LISP faster than C/C++
On 2010-06-15, Aaron W. Hsu arcf...@sacrideo.us wrote: I've heard it said, it is easy to beat C compilers for fast code, it's just hard to beat them at benchmarks written for C. That is, do the same type of things as what Scheme gives you, such as lots of dynamic allocation and resizing, higher order functions, and closures, and you won't find C faster. I don't know about that... It's hard to beat the speed of a program that segfaults immediately. ;) It's hardly fair if you're going to demand that the C program actually works correctly. -- Grant -- http://mail.python.org/mailman/listinfo/python-list
