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Re: [Pharo-users] [Stupid Benchmarks] C++ vs Pharo

by Sven Van Caekenberghe

Like this: [ | sum | sum:= 0. 1 to: 1e9 do: [ :i | sum := sum + i ]. sum ] timeToRun. "0:00:00:39.305" cat bench.c #include <stdio.h> #include <time.h> int main() { clock_t begin = clock(); int sum = 0; for (int i = 0; i < 1000000000; i++) sum += i; clock_t end = clock(); double time_spent = (double)(end - begin) / CLOCKS_PER_SEC; printf("time_spent=%f\n", time_spent); } ./a.out time_spent=2.370234 That is C being 16 times faster ... > On 17 Dec 2016, at 13:49, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Hmm, this sounds wrong (C++ should be (a lot) faster on such micro benchmarks). > > You should exclude the executable startup time. > > In Pharo you should do [ .. ] timeToRun and something similar in C/C++. > >> On 17 Dec 2016, at 13:41, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: >> >> in multiplication pharo is around 2 times slower compared to C++ >> >> #include <stdio.h> >> >> int main() >> { >> double x=1; >> for(double i; i<1000000000 ; ++i) >> { >> x = 0.1*i; >> } >> >> return 1; >> } >> >> time ./testMul >> 3.13 real 3.13 user 0.00 sys >> >> time ./pharo Ephestos.image eval "|x| x := 1. 1 to: 1000000000 do:[:each| x := 0.1 * each]" >> 1 >> 4.97 real 4.48 user 0.09 sys >> >> On Sat, Dec 17, 2016 at 2:16 PM Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: >> So I was bored and decided to test how fast pharo is compared to C++. >> >> so I tested addition >> >> C++ version: >> >> #include <stdio.h> >> >> int main() >> { >> double x=0; >> while(x<1000000000) >> { >> x = x+1; >> } >> >> return 1; >> } >> >> time ./test1 >> 2.84 real 2.84 user 0.00 sys >> >> Pharo version: >> >> time ./pharo Ephestos.image eval "|x| x := 0. 1 to: 1000000000 do:[:each| x := x +1]" >> 1 >> 2.09 real 1.94 user 0.08 sys >> >> Pharo is +50% faster than C++ ... o_O ... that's suprising, I assume here Pharo VM probably does some kind of optimisation. >> >

Dec. 17, 2016

Re: [Pharo-users] [Stupid Benchmarks] C++ vs Pharo

by Michal Balda

The conditions are unfair: the C++ version uses double, whereas the Pharo version uses Integers. Change the C++ version to use int and then report the results :-). Michal On 17.12.2016 13:16, Dimitris Chloupis wrote: > So I was bored and decided to test how fast pharo is compared to C++. > > so I tested addition > > C++ version: > > #include <stdio.h> > > int main() > { > double x=0; > while(x<1000000000) > { > x = x+1; > } > > return 1; > } > > time ./test1 > 2.84 real 2.84 user 0.00 sys > > Pharo version: > > time ./pharo Ephestos.image eval "|x| x := 0. 1 to: 1000000000 > do:[:each| x := x +1]" > 1 > 2.09 real 1.94 user 0.08 sys > > Pharo is +50% faster than C++ ... o_O ... that's suprising, I assume > here Pharo VM probably does some kind of optimisation. >

Dec. 17, 2016

Re: [Pharo-users] [Stupid Benchmarks] C++ vs Pharo

by Sven Van Caekenberghe

Hmm, this sounds wrong (C++ should be (a lot) faster on such micro benchmarks). You should exclude the executable startup time. In Pharo you should do [ .. ] timeToRun and something similar in C/C++. > On 17 Dec 2016, at 13:41, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > > in multiplication pharo is around 2 times slower compared to C++ > > #include <stdio.h> > > int main() > { > double x=1; > for(double i; i<1000000000 ; ++i) > { > x = 0.1*i; > } > > return 1; > } > > time ./testMul > 3.13 real 3.13 user 0.00 sys > > time ./pharo Ephestos.image eval "|x| x := 1. 1 to: 1000000000 do:[:each| x := 0.1 * each]" > 1 > 4.97 real 4.48 user 0.09 sys > > On Sat, Dec 17, 2016 at 2:16 PM Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > So I was bored and decided to test how fast pharo is compared to C++. > > so I tested addition > > C++ version: > > #include <stdio.h> > > int main() > { > double x=0; > while(x<1000000000) > { > x = x+1; > } > > return 1; > } > > time ./test1 > 2.84 real 2.84 user 0.00 sys > > Pharo version: > > time ./pharo Ephestos.image eval "|x| x := 0. 1 to: 1000000000 do:[:each| x := x +1]" > 1 > 2.09 real 1.94 user 0.08 sys > > Pharo is +50% faster than C++ ... o_O ... that's suprising, I assume here Pharo VM probably does some kind of optimisation. >

Dec. 17, 2016

Re: [Pharo-users] [Stupid Benchmarks] C++ vs Pharo

by Dimitris Chloupis

in multiplication pharo is around 2 times slower compared to C++ #include <stdio.h> int main() { double x=1; for(double i; i<1000000000 ; ++i) { x = 0.1*i; } return 1; } time ./testMul 3.13 real 3.13 user 0.00 sys time ./pharo Ephestos.image eval "|x| x := 1. 1 to: 1000000000 do:[:each| x := 0.1 * each]" 1 4.97 real 4.48 user 0.09 sys On Sat, Dec 17, 2016 at 2:16 PM Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > So I was bored and decided to test how fast pharo is compared to C++. > > so I tested addition > > C++ version: > > #include <stdio.h> > > int main() > { > double x=0; > while(x<1000000000) > { > x = x+1; > } > > return 1; > } > > time ./test1 > 2.84 real 2.84 user 0.00 sys > > Pharo version: > > time ./pharo Ephestos.image eval "|x| x := 0. 1 to: 1000000000 do:[:each| > x := x +1]" > 1 > 2.09 real 1.94 user 0.08 sys > > Pharo is +50% faster than C++ ... o_O ... that's suprising, I assume here > Pharo VM probably does some kind of optimisation. > >

Dec. 17, 2016

[Stupid Benchmarks] C++ vs Pharo

by Dimitris Chloupis

So I was bored and decided to test how fast pharo is compared to C++. so I tested addition C++ version: #include <stdio.h> int main() { double x=0; while(x<1000000000) { x = x+1; } return 1; } time ./test1 2.84 real 2.84 user 0.00 sys Pharo version: time ./pharo Ephestos.image eval "|x| x := 0. 1 to: 1000000000 do:[:each| x := x +1]" 1 2.09 real 1.94 user 0.08 sys Pharo is +50% faster than C++ ... o_O ... that's suprising, I assume here Pharo VM probably does some kind of optimisation.

Dec. 17, 2016

Re: [Pharo-users] How to edit an element with Teapot

by Stephane Ducasse

Tx for the pointer. I was planning to read the seaside implementation to understand. I read your Simple Web App but it was not there, nor in Teapot, nor in tinyblog (obviously). So I will have a look at the one. I think that al the docs are only showing displaying information while inputting is the other half of the story. On Sat, Dec 17, 2016 at 12:31 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > I meant section 11 of the Zinc HTTP Server chapter > > https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/ > lastSuccessfulBuild/artifact/book-result/Zinc-HTTP-Server/ > Zinc-HTTP-Server.html > > > On 17 Dec 2016, at 11:56, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > > > Chapter 11 : Scripting a REST Web Service with Zinc > > > > of the Enterprise book > > > >> On 17 Dec 2016, at 11:31, stepharong <stepharong(a)free.fr> wrote: > >> > >> Hi > >> > >> This is probably a stupid question but I dare to ask it. > >> > >> I have a tiny teapot application (based on the library example) and I > would like to let the use add an item or edit an item. > >> I do want to force the user to do it via the request path with a post > or that way > >> > >> ZnClient new > >> url: 'http://localhost:8080/books/1'; > >> formAt: 'author' put: 'SquareBracketAssociates'; > >> formAt: 'title' put: 'Pharo For The Enterprise'; put > >> > >> I know how to do it in Seaside but I feel spoiled because I do not know > how to do it in plain html to serve it with Teapot. > >> > >> I noticed that in none of our chapters (Teapot, ZnApplication chapter, > tinyblog-teapot, tinyblog-seaside) shows how to do it. > >> > >> > >> -- > >> Using Opera's mail client: http://www.opera.com/mail/ > >> > > > > >

Dec. 17, 2016

Re: [Pharo-users] How to edit an element with Teapot

by Sven Van Caekenberghe

I meant section 11 of the Zinc HTTP Server chapter https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… > On 17 Dec 2016, at 11:56, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Chapter 11 : Scripting a REST Web Service with Zinc > > of the Enterprise book > >> On 17 Dec 2016, at 11:31, stepharong <stepharong(a)free.fr> wrote: >> >> Hi >> >> This is probably a stupid question but I dare to ask it. >> >> I have a tiny teapot application (based on the library example) and I would like to let the use add an item or edit an item. >> I do want to force the user to do it via the request path with a post or that way >> >> ZnClient new >> url: 'http://localhost:8080/books/1'; >> formAt: 'author' put: 'SquareBracketAssociates'; >> formAt: 'title' put: 'Pharo For The Enterprise'; put >> >> I know how to do it in Seaside but I feel spoiled because I do not know how to do it in plain html to serve it with Teapot. >> >> I noticed that in none of our chapters (Teapot, ZnApplication chapter, tinyblog-teapot, tinyblog-seaside) shows how to do it. >> >> >> -- >> Using Opera's mail client: http://www.opera.com/mail/ >> >

Dec. 17, 2016

Re: [Pharo-users] How to edit an element with Teapot

by Sven Van Caekenberghe

Chapter 11 : Scripting a REST Web Service with Zinc of the Enterprise book > On 17 Dec 2016, at 11:31, stepharong <stepharong(a)free.fr> wrote: > > Hi > > This is probably a stupid question but I dare to ask it. > > I have a tiny teapot application (based on the library example) and I would like to let the use add an item or edit an item. > I do want to force the user to do it via the request path with a post or that way > > ZnClient new > url: 'http://localhost:8080/books/1'; > formAt: 'author' put: 'SquareBracketAssociates'; > formAt: 'title' put: 'Pharo For The Enterprise'; put > > I know how to do it in Seaside but I feel spoiled because I do not know how to do it in plain html to serve it with Teapot. > > I noticed that in none of our chapters (Teapot, ZnApplication chapter, tinyblog-teapot, tinyblog-seaside) shows how to do it. > > > -- > Using Opera's mail client: http://www.opera.com/mail/ >

Dec. 17, 2016

How to edit an element with Teapot

by stepharong

Hi This is probably a stupid question but I dare to ask it. I have a tiny teapot application (based on the library example) and I would like to let the use add an item or edit an item. I do want to force the user to do it via the request path with a post or that way ZnClient new url: 'http://localhost:8080/books/1'; formAt: 'author' put: 'SquareBracketAssociates'; formAt: 'title' put: 'Pharo For The Enterprise'; put I know how to do it in Seaside but I feel spoiled because I do not know how to do it in plain html to serve it with Teapot. I noticed that in none of our chapters (Teapot, ZnApplication chapter, tinyblog-teapot, tinyblog-seaside) shows how to do it. -- Using Opera's mail client: http://www.opera.com/mail/

Dec. 17, 2016

Re: [Pharo-users] [Vm-dev] ptsd rage

by Ben Coman

On Sat, Dec 17, 2016 at 9:57 AM, Robert Withers <robert.w.withers(a)gmail.com> wrote: > > I need to apologize for all my dread behavior. Here is the reason, and I am > on service-connected disability. Current diagnosis is Complex PTSD. Sorry > about all my sturm und drang. > > http://www.ptsd.va.gov/public/problems/anger-and-trauma.asp > Sorry to hear you are suffering with that. Hopefully a useful treatment is not too far away... F.D.A. Agrees to New Trials for Ecstasy as Relief for PTSD Patients http://www.nytimes.com/2016/11/29/us/ptsd-mdma-ecstasy.html?_r=0 cheers -ben

Dec. 17, 2016