Re: newbie curious of general relative performance
Steve Dekorte <[email protected]> Sun, 23 Dec 2012 07:17:16 -0800
| Newsgroups | gmane.comp.lang.io |
|---|---|
| Message-ID | <[email protected]> |
--8D8Sj2Q5k8q3FpfQpKd3y19PGitP4ict1eE7hAp Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable For fast math, using the Vector object (instead of Number objects) is the w= ay to go.=20 On Dec 21, 2012, at 9:26 AM, [email protected] wrote: > I'm playing around with Io and liking it. I'd like to understand its=20 > performance characteristics. With a dumb integer arithmetic benchmark I=20 > get Io as ten times slower than perl. Is this a more generally accurate=20 > picture or not? >=20 > =3D=3D=3D fib.io =3D=3D=3D > fib :=3D method(n, > if (n =3D=3D 0, return 1) > if (n < 0, return -1) > a :=3D 1; b :=3D 1 > n repeat ( > c :=3D a + b > a :=3D b; b :=3D c > ) > return a > ) >=20 > 100000 repeat( fib(40) ) > =3D=3D=3D=3D=3D=3D=3D=3D >=20 > =3D=3D=3D fib.pl =3D=3D=3D > sub fib { > my $n =3D shift; > return 1 if $n =3D=3D 0; > return -1 if $n < 0; > my ($a, $b) =3D (1, 1); > for (1..$n) { > my $c =3D $a + $b; > $a =3D $b; $b =3D $c; > } > return $a; > } >=20 > fib(40) for 1..100000; > =3D=3D=3D=3D=3D=3D=3D=3D >=20 >=20 > $ time perl fib.pl && time io fib.io >=20 > real 0m0.904s > user 0m0.890s > sys 0m0.007s >=20 > real 0m9.454s > user 0m9.403s > sys 0m0.003s >=20 >=20 > ------------------------------------ >=20 > Yahoo! Groups Links >=20 >=20 >=20 >=20 --8D8Sj2Q5k8q3FpfQpKd3y19PGitP4ict1eE7hAp Content-Type: text/html; charset=US-ASCII Content-Transfer-Encoding: 7bit <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> </head> <body style="background-color: #fff;"> <span style="display:none"> </span> <!--~-|**|PrettyHtmlStartT|**|-~--> <div id="ygrp-mlmsg" style="position:relative;"> <div id="ygrp-msg" style="z-index: 1;"> <!--~-|**|PrettyHtmlEndT|**|-~--> <div id="ygrp-text" > <p>For fast math, using the Vector object (instead of Number objects) is the way to go. <br> <br> On Dec 21, 2012, at 9:26 AM, <a href="mailto:joe%40akalabs.net">[email protected]</a> wrote:<br> <br> > I'm playing around with Io and liking it. I'd like to understand its <br> > performance characteristics. With a dumb integer arithmetic benchmark I <br> > get Io as ten times slower than perl. Is this a more generally accurate <br> > picture or not?<br> > <br> > === fib.io ===<br> > fib := method(n,<br> > if (n == 0, return 1)<br> > if (n < 0, return -1)<br> > a := 1; b := 1<br> > n repeat (<br> > c := a + b<br> > a := b; b := c<br> > )<br> > return a<br> > )<br> > <br> > 100000 repeat( fib(40) )<br> > ========<br> > <br> > === fib.pl ===<br> > sub fib {<br> > my $n = shift;<br> > return 1 if $n == 0;<br> > return -1 if $n < 0;<br> > my ($a, $b) = (1, 1);<br> > for (1..$n) {<br> > my $c = $a + $b;<br> > $a = $b; $b = $c;<br> > }<br> > return $a;<br> > }<br> > <br> > fib(40) for 1..100000;<br> > ========<br> > <br> > <br> > $ time perl fib.pl && time io fib.io<br> > <br> > real 0m0.904s<br> > user 0m0.890s<br> > sys 0m0.007s<br> > <br> > real 0m9.454s<br> > user 0m9.403s<br> > sys 0m0.003s<br> > <br> > <br> > ------------------------------------<br> > <br> > Yahoo! Groups Links<br> > <br> > <br> > <br> > <br> <br> </p> </div> <!--~-|**|PrettyHtmlStart|**|-~--> <div style="color: #fff; height: 0;">__._,_.___</div> <table cellspacing=4px style="margin-top: 20px; margin-bottom: 10px;"> <tbody> <tr> <td style="font-size: 12px; font-family: arial; font-weight: bold; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA " > <a style="text-decoration: none; color: #2D50FD" href="http://groups.yahoo.com/group/iolanguage/post;_ylc=X3oDMTJxbjhvaWFtBF9TAzk3MzU5NzE0BGdycElkAzY2Nzc0NzYEZ3Jwc3BJZAMxNzA1MDA2NzY0BG1zZ0lkAzEzMzAxBHNlYwNmdHIEc2xrA3JwbHkEc3RpbWUDMTM1NjI3NTg0NQ--?act=reply&messageNum=13301">Reply via web post</a> </td> <td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA; " > <a href="mailto:[email protected]?subject=Re%3A%20%5BIo%5D%20newbie%20curious%20of%20general%20relative%20performance" style="text-decoration: none; color: #2D50FD;"> Reply to sender </a> </td> <td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA; "> <a href="mailto:[email protected]?subject=Re%3A%20%5BIo%5D%20newbie%20curious%20of%20general%20relative%20performance" style="text-decoration: none; color: #2D50FD"> Reply to group </a> </td> <td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #FFF; background-color: #F2F2F2; border: 1px solid #EAEAEA; " > <a href="http://groups.yahoo.com/group/iolanguage/post;_ylc=X3oDMTJla2lrYXNkBF9TAzk3MzU5NzE0BGdycElkAzY2Nzc0NzYEZ3Jwc3BJZAMxNzA1MDA2NzY0BHNlYwNmdHIEc2xrA250cGMEc3RpbWUDMTM1NjI3NTg0NQ--" style="text-decoration: none; color: #2D50FD">Start a New Topic</a> </td> <td style="font-size: 12px; font-family: arial; padding: 7px 5px 5px; color: #2D50FD; background-color: #F2F2F2; border: 1px solid #EAEAEA; " > <a href="http://groups.yahoo.com/group/iolanguage/message/13299;_ylc=X3oDMTM2b2R1dGw5BF9TAzk3MzU5NzE0BGdycElkAzY2Nzc0NzYEZ3Jwc3BJZAMxNzA1MDA2NzY0BG1zZ0lkAzEzMzAxBHNlYwNmdHIEc2xrA3Z0cGMEc3RpbWUDMTM1NjI3NTg0NQR0cGNJZAMxMzI5OQ--" style="text-decoration: none; color: #2D50FD;">Messages in this topic</a> (3) </td> </tr> </tbody> </table> <!------- Start Nav Bar ------> <!-- |**|begin egp html banner|**| --> <!-- |**|end egp html banner|**| --> <!-- |**|begin egp html banner|**| --> <div id="ygrp-vital" style="background-color: #f2f2f2; font-family: Verdana; font-size: 10px; margin-bottom: 10px; padding: 10px;"> <span id="vithd" style="font-weight: bold; color: #333; text-transform: uppercase; ">Recent Activity:</span> <ul style="list-style-type: none; margin: 0; padding: 0; display: inline;"> <li style="border-right: 1px solid #000; font-weight: 700; display: inline; padding: 0 5px; margin-left: 0;"> <span class="cat"><a href="http://groups.yahoo.com/group/iolanguage/members;_ylc=X3oDMTJmZGwydmZrBF9TAzk3MzU5NzE0BGdycElkAzY2Nzc0NzYEZ3Jwc3BJZAMxNzA1MDA2NzY0BHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzEzNTYyNzU4NDU-?o=6" style="text-decoration: none;">New Members</a></span> <span class="ct" style="color: #ff7900;">3</span> </li> </ul> <div style="clear: both; padding-top: 2px; color: #1e66ae;"> <a href="http://groups.yahoo.com/group/iolanguage;_ylc=X3oDMTJlcGo2cHM0BF9TAzk3MzU5NzE0BGdycElkAzY2Nzc0NzYEZ3Jwc3BJZAMxNzA1MDA2NzY0BHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTM1NjI3NTg0NQ--" style="text-decoration: none;">Visit Your Group</a> </div> </div> <div id="ft" style="font-family: Arial; font-size: 11px; margin-top: 5px; padding: 0 2px 0 0; clear: both;"> <a href="http://groups.yahoo.com/;_ylc=X3oDMTJkbmxzNWlqBF9TAzk3MzU5NzE0BGdycElkAzY2Nzc0NzYEZ3Jwc3BJZAMxNzA1MDA2NzY0BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxMzU2Mjc1ODQ1" style="float: left;"><img src="http://l.yimg.com/a/i/us/yg/logo/us.gif" height="15" width="137" alt="Yahoo! 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