[#332653] Anything better than klass = eval("#{task_class}") — Paganoni <noway@...>

Hi, well subject is self explanatory...

10 messages 2009/04/01

[#332751] RubyScript2Exe — Charlie Openshaw <charlieopenshaw@...>

Hi,

14 messages 2009/04/02

[#332795] ri is suddenly empty — Fernando Perez <pedrolito@...>

Hi,

15 messages 2009/04/03

[#332861] Verify, a very basic testing tool. — Robert Dober <robert.dober@...>

Hi List

34 messages 2009/04/03
[#332871] Re: [Ann] Verify, a very basic testing tool. — Ryan Davis <ryand-ruby@...> 2009/04/03

[#332882] Re: [Ann] Verify, a very basic testing tool. — Robert Dober <robert.dober@...> 2009/04/03

On Fri, Apr 3, 2009 at 10:56 PM, Ryan Davis <ryand-ruby@zenspider.com> wrot=

[#332869] Loading classes in order — Elias Orozco <elioncho@...>

Hello guys,

17 messages 2009/04/03
[#332874] Re: Loading classes in order — Iñaki Baz Castillo <ibc@...> 2009/04/03

El Viernes 03 Abril 2009, Elias Orozco escribi=C3=B3:

[#332983] Ruby 1.9.1 - invalid multibyte escape: /[\xC0-\xDF]/ (RegexpError) — Iñaki Baz Castillo <ibc@...>

Hi, using TreeTop parser I had a grammar defined working in Ruby1.8 but it=

12 messages 2009/04/04
[#333081] Re: Ruby 1.9.1 - invalid multibyte escape: /[\xC0-\xDF]/ (RegexpError) — Eric Hodel <drbrain@...7.net> 2009/04/06

[#333092] Re: Ruby 1.9.1 - invalid multibyte escape: /[\xC0-\xDF]/ (RegexpError) — Iñaki Baz Castillo <ibc@...> 2009/04/06

2009/4/6 Eric Hodel <drbrain@segment7.net>:

[#332984] How to get "irb1.8" using Ruby1.8 instead of Ruby1.9.1 ? — Iñaki Baz Castillo <ibc@...>

Hi, in Debian I've ruby1.8 (/usr/bin/ruby1.8) and irb1.8 installed as DEB=20

16 messages 2009/04/04

[#333051] Localmemcache-0.2.1: The beauty of memcached. For local data. Blazingly fast. — "Sven C. Koehler" <schween@...>

Hi,

9 messages 2009/04/05

[#333063] how to dynamically create search term for array.find_all — Adam Akhtar <adamtemporary@...>

i want to be able to create a mehtod that will filter results in an

13 messages 2009/04/06
[#333064] Re: how to dynamically create search term for array.find_all — Phlip <phlip2005@...> 2009/04/06

Adam Akhtar wrote:

[#333108] Re: how to dynamically create search term for array.find_all — Adam Akhtar <adamtemporary@...> 2009/04/06

Thanks for your advice.

[#333109] Re: how to dynamically create search term for array.find_all — Adam Akhtar <adamtemporary@...> 2009/04/06

ahh robert, sorry i missed your reply there, i was looking at

[#333206] regex select multiple words in the middle of a sentence — Raimon Fs <coder@...>

hello,

11 messages 2009/04/07

[#333231] How to remote connect to the SQL server 2005 when there is a ‘\’ in the SQL server name, such as 192.168.0.11\active? — Wesley Chen <cjq.999@...>

Hi, Guys,

10 messages 2009/04/07
[#333246] Re: How to remote connect to the SQL server 2005 when there is a ‘\’ in the SQL server name, such as 192.168.0.11\active? — "Sean O'Halpin" <sean.ohalpin@...> 2009/04/07

(Disclaimer: It's a while since I did anything with SQL Server)

[#333265] Re: How to remote connect to the SQL server 2005 when there is a ‘\’ in the SQL server name, such as 192.168.0.11\active? — Wesley Chen <cjq.999@...> 2009/04/08

Hi, Sean,

[#333275] Re: How to remote connect to the SQL server 2005 when there is a ‘\’ in the SQL server name, such as 192.168.0.11\active? — "Sean O'Halpin" <sean.ohalpin@...> 2009/04/08

On Wed, Apr 8, 2009 at 3:50 AM, Wesley Chen <cjq.999@gmail.com> wrote:

[#333273] Ruby 1.9 still cannot list all files on Vista or XP? — SpringFlowers AutumnMoon <summercoolness@...>

I just tried using Ruby 1.9 and it seemed that it still cannot list all

18 messages 2009/04/08

[#333291] How to find Operating system — Newb Newb <revathy.p@...>

Hi....

19 messages 2009/04/08
[#333299] Re: How to find Operating system — Mark S Bilk <mark@...> 2009/04/08

On Apr 8, 4:27=A0am, Eleanor McHugh <elea...@games-with-brains.com>

[#333309] Re: How to find Operating system — Eleanor McHugh <eleanor@...> 2009/04/08

On 8 Apr 2009, at 13:30, Mark S Bilk wrote:

[#333311] performing an action only the first time a function called — James French <James.French@...> 2009/04/08

Hi,

[#333319] Ruby editor for linux — Juan Zanos <juan_zanos@...>

Does anyone have any suggestions for a Ruby editor on Linux? I

31 messages 2009/04/08

[#333368] Goodbye Ruby - Hello Earth — Christophe Mckeon <chromatophore@...>

Hello Fellow Humans,

170 messages 2009/04/08
[#333440] Re: Goodbye Ruby - Hello Earth — The Higgs bozo <higgs.bozo@...> 2009/04/09

Christophe Mckeon wrote:

[#333443] Re: Goodbye Ruby - Hello Earth — Phlip <phlip2005@...> 2009/04/09

The Higgs bozo wrote:

[#333455] Re: Goodbye Ruby - Hello Earth — Phlip <phlip2005@...> 2009/04/09

>> Am I the only one who, upon reading the subject line, thought that

[#333468] Re: Goodbye Ruby - Hello Earth — Christophe Mckeon <chromatophore@...> 2009/04/09

Hi guys,

[#333542] Re: Goodbye Ruby - Hello Earth — Jeff Schwab <jeff@...> 2009/04/10

Christophe Mckeon wrote:

[#333580] Re: Goodbye Ruby - Hello Earth — Eleanor McHugh <eleanor@...> 2009/04/10

> Christophe Mckeon wrote:

[#333602] Re: Goodbye Ruby - Hello Earth — Chad Perrin <perrin@...> 2009/04/11

On Sat, Apr 11, 2009 at 02:22:09AM +0900, Eleanor McHugh wrote:

[#333615] Re: Goodbye Ruby - Hello Earth — Eleanor McHugh <eleanor@...> 2009/04/11

On 11 Apr 2009, at 02:12, Chad Perrin wrote:

[#333626] Re: Goodbye Ruby - Hello Earth — Robert Dober <robert.dober@...> 2009/04/11

On Sat, Apr 11, 2009 at 10:44 AM, Eleanor McHugh

[#333657] Re: Goodbye Ruby - Hello Earth — Chad Perrin <perrin@...> 2009/04/12

On Sun, Apr 12, 2009 at 12:53:07AM +0900, Robert Dober wrote:

[#333783] Re: Goodbye Ruby - Hello Earth — Eleanor McHugh <eleanor@...> 2009/04/13

On 12 Apr 2009, at 06:36, Chad Perrin wrote:

[#334172] Re: Goodbye Ruby - Hello Earth — Tom Cloyd <tomcloyd@...> 2009/04/16

Eleanor McHugh wrote:

[#334187] Re: Goodbye Ruby - Hello Earth — Chad Perrin <perrin@...> 2009/04/16

On Fri, Apr 17, 2009 at 05:58:21AM +0900, Tom Cloyd wrote:

[#334191] Re: Goodbye Ruby - Hello Earth — Todd Benson <caduceass@...> 2009/04/17

On Thu, Apr 16, 2009 at 6:23 PM, Chad Perrin <perrin@apotheon.com> wrote:

[#334284] Re: Goodbye Ruby - Hello Earth — "Phlip" <phlip2005@...> 2009/04/18

> And besides, who are we kidding thinking that the planet needs us?

[#334334] Re: Goodbye Ruby - Hello Earth — "Phlip" <phlip2005@...> 2009/04/18

> Now, do I believe the earth's climate is changing? Absolutely. It has

[#333521] how do you manage your gems' gemspecs? — ghorner <gabriel.horner@...>

Hi,

15 messages 2009/04/10

[#333546] Python on LLVM — Daniel Berger <djberg96@...>

Python on LLVM. Thought it might be interesting to some folks here:

17 messages 2009/04/10

[#333607] a few thoughts for ruby... — Roger Pack <rogerpack2005@...>

Thought I'd pass these thoughts by the readers here before sending them

23 messages 2009/04/11

[#333624] Can Ruby stay ahead ? — Suresh Kk <sureshkkgvr@...>

Will Ruby find it difficult to stay in the first 10 languages list

27 messages 2009/04/11
[#333636] Re: Can Ruby stay ahead ? — Charles Oliver Nutter <charles.nutter@...> 2009/04/11

To be honest, I think the most important thing Rubyists could do to help

[#333707] newbie confusion and dejection — Reg <reg@...>

Over the years I have taught myself to program in C, C++, and VB to

14 messages 2009/04/13

[#333736] Ruby vs. Groovy: your perspective — Diego Virasoro <Diego.Virasoro@...>

Hello,

45 messages 2009/04/13
[#333789] Re: Ruby vs. Groovy: your perspective — Eleanor McHugh <eleanor@...> 2009/04/13

On 13 Apr 2009, at 12:35, Diego Virasoro wrote:

[#333803] Re: Ruby vs. Groovy: your perspective — Charles Oliver Nutter <charles.nutter@...> 2009/04/13

Eleanor McHugh wrote:

[#333833] Re: Ruby vs. Groovy: your perspective — James Britt <james.britt@...> 2009/04/14

Charles Oliver Nutter wrote:

[#333742] connecting to Oracle using OCI8 and DBI — Peter Bailey <pbailey@...>

Hi,

12 messages 2009/04/13

[#333867] The "Ruby Best Practices" Collaborative Blog — Gregory Brown <gregory.t.brown@...>

Hi folks,

30 messages 2009/04/14
[#333885] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — James Gray <james@...> 2009/04/14

On Apr 14, 2009, at 8:14 AM, Gregory Brown wrote:

[#333894] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Gregory Brown <gregory.t.brown@...> 2009/04/14

On Tue, Apr 14, 2009 at 12:24 PM, James Gray <james@grayproductions.net> wr=

[#333899] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Chuck Remes <cremes.devlist@...> 2009/04/14

[#333900] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Gregory Brown <gregory.t.brown@...> 2009/04/14

On Tue, Apr 14, 2009 at 1:44 PM, Chuck Remes <cremes.devlist@mac.com> wrote:

[#333901] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Ben Lovell <benjamin.lovell@...> 2009/04/14

On Tue, Apr 14, 2009 at 6:53 PM, Gregory Brown <gregory.t.brown@gmail.com>wrote:

[#333904] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Tony Arcieri <tony@...> 2009/04/14

On Tue, Apr 14, 2009 at 12:07 PM, Ben Lovell <benjamin.lovell@gmail.com>wrote:

[#333912] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Gregory Brown <gregory.t.brown@...> 2009/04/14

On Tue, Apr 14, 2009 at 2:32 PM, Tony Arcieri <tony@medioh.com> wrote:

[#334011] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Michael Fellinger <m.fellinger@...> 2009/04/15

On Wed, 15 Apr 2009 04:48:42 +0900

[#334014] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Gregory Brown <gregory.t.brown@...> 2009/04/15

On Wed, Apr 15, 2009 at 11:16 AM, Michael Fellinger

[#334020] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Robert Klemme <shortcutter@...> 2009/04/15

On 15.04.2009 17:46, Gregory Brown wrote:

[#334086] Re: [ANN] The "Ruby Best Practices" Collaborative Blog — Gregory Brown <gregory.t.brown@...> 2009/04/16

On Wed, Apr 15, 2009 at 12:35 PM, Robert Klemme

[#333981] Install a Windows server made with Ruby — Alexandre Stehlin <alexandre.stehlin@...>

Hello everybody !

23 messages 2009/04/15
[#334010] Re: Install a Windows server made with Ruby — Roger Pack <rogerpack2005@...> 2009/04/15

[#334013] Re: Install a Windows server made with Ruby — Alexandre Stehlin <alexandre.stehlin@...> 2009/04/15

Roger Pack wrote:

[#334426] Re: Install a Windows server made with Ruby — Roger Pack <rogerpack2005@...> 2009/04/20

Alexandre Stehlin wrote:

[#334430] Re: Install a Windows server made with Ruby — Alexandre Stehlin <alexandre.stehlin@...> 2009/04/20

Roger Pack wrote:

[#334465] Re: Install a Windows server made with Ruby — Roger Pack <rogerpack2005@...> 2009/04/20

[#334469] Re: Install a Windows server made with Ruby — Glen Holcomb <damnbigman@...> 2009/04/20

On Mon, Apr 20, 2009 at 7:49 AM, Roger Pack <rogerpack2005@gmail.com> wrote=

[#334631] Re: Install a Windows server made with Ruby — Alexandre Stehlin <alexandre.stehlin@...> 2009/04/22

Glen Holcomb wrote:

[#334640] Re: Install a Windows server made with Ruby — Roger Pack <rogerpack2005@...> 2009/04/22

[#334644] Re: Install a Windows server made with Ruby — Alexandre Stehlin <alexandre.stehlin@...> 2009/04/22

Ok, here's what I got :

[#334648] Re: Install a Windows server made with Ruby — Alexandre Stehlin <alexandre.stehlin@...> 2009/04/22

Alexandre Stehlin wrote:

[#333993] reformatting a text file that has some binary in it — Adam Akhtar <adamtemporary@...>

I have never worked with binary before and after trying to solve this

20 messages 2009/04/15
[#334768] Re: reformatting a text file that has some binary in it — "t3ch.dude" <t3ch.dude@...> 2009/04/23

On Apr 23, 5:05=A0am, Adam Akhtar <adamtempor...@gmail.com> wrote:

[#334834] Re: reformatting a text file that has some binary in it — Adam Akhtar <adamtemporary@...> 2009/04/23

ahh should have thought about that. here is a souce file

[#334063] http://rubypan.org/ — Aaron Patterson <aaron@...>

http://rubypan.org/ version 1.0.0 has been released!

16 messages 2009/04/16

[#334194] Localmemcache-0.3.0: A persistent key-value database based on mmap()'ed shared memory — "Sven C. Koehler" <schween@...>

Hi, Localmemcache-0.3.0 is ready! Persistence is officially supported

9 messages 2009/04/17

[#334272] Junctions for Ruby1.9 (Lab419::functional-0.1.2) — Robert Dober <robert.dober@...>

Hi list

14 messages 2009/04/17

[#334370] ruby1.9 and the retry keyword — Yoann Guillot <john-rubytalk@...>

Hi

12 messages 2009/04/19

[#334479] Polymorphism — Michael Satterwhite <michael@...>

As much as I like Ruby, I do miss the polymorphic behavior of routines

14 messages 2009/04/20
[#334480] Re: Polymorphism — Phlip <phlip2005@...> 2009/04/20

Michael Satterwhite wrote:

[#334510] directory watcher, trying to match filename to directory name. — Brian Wallace <draygen80@...>

Hi All,

12 messages 2009/04/21
[#334515] Re: directory watcher, trying to match filename to directory name. — David Gaya <david.gaya@...> 2009/04/21

> dw =3D DirectoryWatcher.new "#{@dirwatch}", :interval =3D> 5, :glob =3D> =

[#334524] Re: directory watcher, trying to match filename to directory name. — Brian Wallace <draygen80@...> 2009/04/21

Thanks David,

[#334537] Re: directory watcher, trying to match filename to directory name. — Tim Pease <tim.pease@...> 2009/04/21

On Tue, Apr 21, 2009 at 6:51 AM, Brian Wallace <draygen80@gmail.com> wrote:

[#334529] Ruby or JRuby — Martin L'ecuyer <martin@...>

Hi i'm new here and new with Ruby. I just start to learn Ruby and Ruby

19 messages 2009/04/21
[#334531] Re: Ruby or JRuby — James Herdman <james.herdman@...> 2009/04/21

Hi Martin.

[#334532] Re: Ruby or JRuby — Robert Dober <robert.dober@...> 2009/04/21

On Tue, Apr 21, 2009 at 4:39 PM, James Herdman <james.herdman@gmail.com> wr=

[#334696] Re: Ruby or JRuby — David Masover <ninja@...> 2009/04/22

On Tuesday 21 April 2009 09:48:47 Robert Dober wrote:

[#334710] Re: Ruby or JRuby — Robert Dober <robert.dober@...> 2009/04/22

On Wed, Apr 22, 2009 at 10:43 PM, David Masover <ninja@slaphack.com> wrote:

[#334551] Is there a better way to do this? — Paul Mckibbin <pmckibbin@...>

I recently had code which needed to work with the same structure twice,

11 messages 2009/04/21

[#334577] Can't install hpricot gem — Boris Barroso <boriscyber@...>

I can't install hpricot gem on CentOS 5, you can check the error message

13 messages 2009/04/21

[#334711] Diamondback Ruby - Static Typing for Ruby — Mike Furr <furr@...>

16 messages 2009/04/22

[#334826] Is there a better way of doing this — Damjan Rems <d_rems@...>

I have three classes.

17 messages 2009/04/23

[#334944] Digits of Pi (#202) — Daniel Moore <yahivin@...>

-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=

26 messages 2009/04/24
[#334948] Re: [QUIZ] Digits of Pi (#202) — Joel VanderWerf <vjoel@...> 2009/04/24

Daniel Moore wrote:

[#334986] Methods and blocks - not that clear when blocks passed into — Steven Taylor <staylor@...>

Coming from other programming languages, notably Basic based, a little

10 messages 2009/04/25

[#335047] Using method missing to create getters and setters — Tim Conner <crofty_james@...>

Hi,

10 messages 2009/04/26

[#335060] How to parse a "line"? — Martin Sharon <huangshuo.9@...>

Hi there:

25 messages 2009/04/26
[#335061] Re: How to parse a "line"? — James Gray <james@...> 2009/04/26

On Apr 26, 2009, at 3:48 PM, Martin Sharon wrote:

[#335062] Re: How to parse a "line"? — Robert Dober <robert.dober@...> 2009/04/26

On Sun, Apr 26, 2009 at 10:56 PM, James Gray <james@grayproductions.net> wrote:

[#335069] Re: How to parse a "line"? — Todd Benson <caduceass@...> 2009/04/26

On Sun, Apr 26, 2009 at 4:11 PM, Robert Dober <robert.dober@gmail.com> wrote:

[#335070] Re: How to parse a "line"? — Todd Benson <caduceass@...> 2009/04/26

On Sun, Apr 26, 2009 at 5:55 PM, Todd Benson <caduceass@gmail.com> wrote:

[#335071] Re: How to parse a "line"? — Martin Sharon <huangshuo.9@...> 2009/04/27

Thank you Todd, but the number of the keywords are dynamic.

[#335085] Re: How to parse a "line"? — Todd Benson <caduceass@...> 2009/04/27

On Sun, Apr 26, 2009 at 7:25 PM, Martin Sharon <huangshuo.9@gmail.com> wrote:

[#335068] Block Style — James Gray <james@...>

I hate to be the guy to start another { =85 } vs. do =85 end thread, but =

16 messages 2009/04/26

[#335151] Gui library suggestion based on my needs? — Pito Salas <rps@...>

Any recommendation on which 'gui' package I should use to build a ruby

14 messages 2009/04/27

[#335217] Why does attr_accessor in module require 'self.'? — Brian Hartin <brian.hartin@...>

Hi there,

14 messages 2009/04/27

[#335301] Detecting -0.0 — "Thomas B." <tpreal@...>

Hello.

19 messages 2009/04/28

[#335308] Random Access using IO#pos in code blocks — Arun Kumar <arun.einstein@...>

Hello everyone,

14 messages 2009/04/28
[#335369] Re: Random Access using IO#pos in code blocks — Brian Candler <b.candler@...> 2009/04/29

Arun Kumar wrote:

[#335331] New to Ruby, making a program from a disabled friend — Hank Quinlan <tjmaser@...>

Hi. I am only learning Ruby to help my friend out, and am completely new

15 messages 2009/04/29

[#335334] Issue with regexp pattern matcher withing String#gsub — Craig Jolicoeur <cpjolicoeur@...>

I'm having a strange issue I can't wrap my head around. I've posted the

10 messages 2009/04/29

[#335466] Read and re-write file with one open? — Adam Bender <abender@...>

I would like to write a Ruby script that opens a text file, performs a gsub

19 messages 2009/04/30

[#335532] setting up cygwin on windows or linux it? — Adam Akhtar <adamtemporary@...>

Due to some gems not working for windows im considering either

19 messages 2009/04/30
[#335542] Re: setting up cygwin on windows or linux it? — Hassan Schroeder <hassan.schroeder@...> 2009/04/30

On Thu, Apr 30, 2009 at 5:28 AM, Adam Akhtar <adamtemporary@gmail.com> wrote:

[#335563] Re: setting up cygwin on windows or linux it? — Aleksandr Levchuk <alevchuk@...> 2009/04/30

Usually virtualization (VMWare, etc.) is too slow to use. I would

Re: Wow: jruby vs. MRE^?^?^?I performance...

From: "Andrew S. Townley" <ast@...>
Date: 2009-04-24 15:47:36 UTC
List: ruby-talk #334910
On Sat, 2009-04-25 at 00:21 +0900, Charles Oliver Nutter wrote:
> Andrew S. Townley wrote:
> > First, JRuby takes up a lot more memory than MRE, which I suppose is the
> > nature of the beast.  It can't be 100% apples to apples comparison,
> > because to do what I'm doing I'm using different UI toolkits in each
> > environment.  However, for comparison (top output):
> > 
> >   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
> >  6042 ast       20   0  423m 105m  22m S    0  2.7   1:42.55 ruby  
> >  6058 ast       20   0  816m 329m  11m S  110  8.3   0:56.71 java               
> 
> There are ways to mitigate this, somewhat, but it's also the nature of a 
> VM with a generational garbage collector to be larger in memory.
> 
> > MRE:	15.54s
> > JRuby:	 4.56s
> 
> Very nice! We would probably improve even more on a longer run; this is 
> a pretty short timing, and anything under 10s doesn't really show our 
> full performance.

Since this is a desktop app, if I get anything with over 10s response
time, then I've got serious work to do (normally shooting for the < 3s
range)! :)  Of course, this is why the MRI (sorry for the MRE typo
earlier) implementation was starting to worry me.  Still, this is one of
the largest datasets that I have at the moment (which is still pretty
small).

One of the things on the list is to break this up so you can navigate it
in smaller chunks.  Normally, you don't need to see all this stuff at
once anyway.  The UI model is evolving as we go...

> > The nature of the application is that it does a bunch of filesystem I/O
> > operations, lots of regular expression checks, and lots and lots and
> > lots of Hash lookups.  This particular timing figure also has nothing to
> > do with the UI environment.  It's generated internally by code triggered
> > by the UI.
> > 
> > Would I be right in assuming that this performance difference is due to
> > faster underlying performance of the relevant Java classes, or is it
> > down to the execution speed of the VMs (or maybe a bit of both)?
> 
> For that kind of application most of the performance difference is 
> probably coming from our implementations of Regexp, IO, and Hash. IO is 
> usually a bit slower than MRI for us (needs work), but Regexp and Hash 
> are usually very good performance. And the JVM helps a lot as well; most 
> of our core classes have been written in a way that allows the JVM to 
> optimize them well.
> 
> You're probably seeing some boost from JRuby's execution performance, 
> which is pretty good as well. But I'd bet most comes from the core class 
> impls.

Interesting info.  Thanks.

> > The system environment details are:
> > 
> > Intel(R) Core(TM)2 CPU          6700  @ 2.66GHz
> > MemTotal:      4046672 kB
> > 
> > ruby 1.8.6 (2007-09-24 patchlevel 111) [x86_64-linux]
> > jruby 1.3.0 (ruby 1.8.6p287) (2009-04-21 r9535) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_11) [amd64-java]
> 
> The 64-bit JVMs take up quite a bit more memory, as would a 64-bit 
> implementation of anything (pointers at the very least become twice as 
> wide). If you have the option, you might try running in 32-bit mode 
> (-d32 passed to JVM, or -J-d32 passed to JRuby). But on 64-bit linux I 
> don't think there's a 32-bit JVM by default.

I installed this one by hand (along with a few others for testing).  I'm
not really too worried about the 32-bit JVM at the moment as I'm mostly
concerned with just making things work.

> You can also try to choke the maximum memory down. By default, JRuby 
> will allow the JVM to grow its heap up to 512MB. You can modify this up 
> or down with the -Xmx JVM flag (or -J-Xmx JRuby flag). So the default 
> would be -J-Xmx512M and if you can run with less, you might be able to 
> force JRuby+JVM to use less memory at a possible cost of performance 
> (more GC).

Yeah.  About that... actually the first time I tried to run anything
with JRuby (and this codebase), it said that I needed more heap size
with everything I tried (1024m, 2048m) up to 4096m.  I've no idea what
the issue was, but it seems to hang/get confused when I get exceptions
from time to time.  I had it set that way (4096m) the first time I ran
it, but then I tried it again with the defaults to see if it would work.
Fortunately, it did.

So far, it doesn't seem as forgiving or as informational as MRI when
handling exceptions, though.  At this stage, I'm learning to translate,
however. :)

Once I get more of the UI working (at the moment, I only have one of
about 10 views "ported" to JFC/Swing from Ruby/GNOME2) and start having
something that I can actually use, I might start messing with
performance tweaks.  It eventually needs to run (and run well) on
machines like my laptop:

Intel(R) Core(TM)2 Duo CPU     U7700  @ 1.33GHz (normally ~800MHz)

It also has half the processor cache size and half the total memory, so
it will be more important.  It's also got to run comfortably on Windows
(XP & Vista) without requiring OTT specs, so this might also trigger
some performance improvements.

Still, I'm chuffed, because I was actually expecting it to be slower.

Cheers,

ast
-- 
Andrew S. Townley <ast@atownley.org>
http://atownley.org


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