[#223105] ruby programming best practice — "Shannon Fang" <xrfang@...>

As a dynamic language, Ruby is much more flexible and easier than other

18 messages 2006/11/01

[#223126] variable pointer — "akbarhome" <akbarhome@...>

@c = "donal"

17 messages 2006/11/01

[#223211] file size revisit — python152@...

Hi, folks

17 messages 2006/11/02

[#223299] Just a question to throw out there... — "Skotty" <shyguyfrenzy@...>

Another noobrube question.

23 messages 2006/11/02

[#223398] Output not clear — "Learning Ruby" <learningruby@...>

I am a newbie to Ruby and the output of the following program is not clear

14 messages 2006/11/03

[#223425] Bytecode Compiler (#100) — Ruby Quiz <james@...>

The three rules of Ruby Quiz:

27 messages 2006/11/03

[#223458] REXML ... performance & memory usage ... — Jeff Wood <jeff@...>

Wow ... I am trying to use REXML to parse through an 8.8Mb xml file ...

14 messages 2006/11/03

[#223653] Book wanted: Metaprogramming in Ruby — Jay Levitt <jay+news@...>

Now that Hal, David B, Curt, and others have some spare time:

25 messages 2006/11/06

[#223736] REXML — "pdg" <pgattphoto@...>

Hi All,

22 messages 2006/11/06

[#223831] the name of Matz — Byung-Hee HWANG <bh@...>

Hello,

51 messages 2006/11/07
[#223839] Re: [OT] the name of Matz — Yukihiro Matsumoto <matz@...> 2006/11/07

Hi,

[#224216] Re: [OT] the name of Matz — Byung-Hee HWANG <bh@...> 2006/11/09

Yukihiro Matsumoto wrote:

[#223975] Re: [OT] the name of Matz — Devin Mullins <twifkak@...> 2006/11/08

Yukihiro Matsumoto wrote:

[#224630] Re: the name of Matz — "Ryo" <furufuru@...> 2006/11/12

Yukihiro Matsumoto wrote:

[#224645] Re: the name of Matz — "Robert Dober" <robert.dober@...> 2006/11/12

On 11/12/06, Ryo <furufuru@ccsr.u-tokyo.ac.jp> wrote:

[#242731] Re: the name of Matz — Harry <ruby.hardware@...> 2007/03/09

> It might be fun though if you could give a pointer to the "correct"

[#223846] How to make a cycling counter from commandline? — "darenbell@..." <darenbell@...>

Hi, I'm looking for a way to implement this idea:

12 messages 2006/11/07

[#223930] Two way communication with the command shell (IO.popen?) — James Smith <jmdjmsmith@...>

19 messages 2006/11/08
[#223943] Re: Two way communication with the command shell (IO.popen?) — ara.t.howard@... 2006/11/08

On Wed, 8 Nov 2006, James Smith wrote:

[#223997] Re: Two way communication with the command shell (IO.popen?) — James Smith <jmdjmsmith@...> 2006/11/08

unknown wrote:

[#224012] Re: Two way communication with the command shell (IO.popen?) — ara.t.howard@... 2006/11/08

On Wed, 8 Nov 2006, James Smith wrote:

[#224327] Re: Two way communication with the command shell (IO.popen?) — James Smith <jmdjmsmith@...> 2006/11/10

unknown wrote:

[#224690] Re: testing whether a process has completed.. — James Smith <jmdjmsmith@...> 2006/11/12

OK, keeping it simple I am basically using the following code:

[#224691] Re: testing whether a process has completed.. — "Patrick Hurley" <phurley@...> 2006/11/12

On 11/12/06, James Smith <jmdjmsmith@msn.com> wrote:

[#223953] Why create web servers? — "CatLady []" <totalharmonicdistortion@...>

Hi,

16 messages 2006/11/08

[#224002] FastRI 0.1.0: faster, smarter RI docs for Ruby, DRb-enabled — Mauricio Fernandez <mfp@...>

FastRI 0.1.0: faster, smarter RI docs for Ruby, DRb-enabled

27 messages 2006/11/08

[#224013] #returning and #tap — "Trans" <transfire@...>

Had use for this today: #returning is a convenience method you'll find

57 messages 2006/11/08
[#225210] Re: #returning and #tap — Eric Hodel <drbrain@...7.net> 2006/11/15

On Nov 8, 2006, at 6:40 AM, Trans wrote:

[#225233] Re: #returning and #tap — Joel VanderWerf <vjoel@...> 2006/11/16

Eric Hodel wrote:

[#225358] Re: #returning and #tap — Eric Hodel <drbrain@...7.net> 2006/11/16

On Nov 15, 2006, at 5:40 PM, Joel VanderWerf wrote:

[#225370] Re: #returning and #tap — ara.t.howard@... 2006/11/16

On Fri, 17 Nov 2006, Eric Hodel wrote:

[#225382] Re: #returning and #tap — Joel VanderWerf <vjoel@...> 2006/11/16

ara.t.howard@noaa.gov wrote:

[#225385] Re: #returning and #tap — dblack@... 2006/11/16

Hi --

[#225388] Re: #returning and #tap — Joel VanderWerf <vjoel@...> 2006/11/16

dblack@wobblini.net wrote:

[#225393] Re: #returning and #tap — dblack@... 2006/11/16

Hi --

[#225399] Re: #returning and #tap — Joel VanderWerf <vjoel@...> 2006/11/16

dblack@wobblini.net wrote:

[#225420] Re: #returning and #tap — dblack@... 2006/11/16

Hi --

[#225476] Re: #returning and #tap — "Martin DeMello" <martindemello@...> 2006/11/17

On 11/17/06, dblack@wobblini.net <dblack@wobblini.net> wrote:

[#225488] Re: #returning and #tap — dblack@... 2006/11/17

Hi --

[#225494] Re: #returning and #tap — spooq <spoooq@...> 2006/11/17

I definitely think of it as tapping a phone line.

[#225495] Re: #returning and #tap — spooq <spoooq@...> 2006/11/17

Actually, how about giving the proc a copy of the object, rather than

[#224039] Proc as Observer — "Tim Pease" <tim.pease@...>

Working with an Observable object, I wanted to be able to add a Proc

20 messages 2006/11/08
[#224061] Re: Proc as Observer — "Trans" <transfire@...> 2006/11/08

[#224040] Simple Math Problem — Thom Loring <tloring@...>

Can anyone shed some light on a simple math problem I have encountered?

14 messages 2006/11/08

[#224087] The Ruby Way review on Slashdot — Timothy Hunter <TimHunter@...>

Whoo-hoo! My review of Hal Fulton's _The_Ruby_Way,_Second_Edition_ is on

17 messages 2006/11/08

[#224157] thousand ways to rome — Chris Mueller <damngoodcoffee@...>

Hi,

17 messages 2006/11/09

[#224246] Overwriting the Integer class for method succ! (instead of just succ) — "paul" <pjvleeuwen@...>

Hi all,

11 messages 2006/11/09

[#224331] Rails vs. Asp.Net politics — "Leslie Viljoen" <leslieviljoen@...>

I have the deciding vote in a new (rather large) web app we need to

28 messages 2006/11/10

[#224352] VCR Program Manager (#101) — Ruby Quiz <james@...>

The three rules of Ruby Quiz:

13 messages 2006/11/10

[#224398] looking for some feedback about Certification — "pat eyler" <pat.eyler@...>

Aaah, nothing like a good controversial topic to stir up a holy war

38 messages 2006/11/10
[#224401] Re: looking for some feedback about Certification — Gustav Paul <gustav@...> 2006/11/10

pat eyler wrote:

[#224439] Re: looking for some feedback about Certification — dblack@... 2006/11/11

Hi --

[#224411] turn 0.1.0 Released — "Tim Pease" <tim.pease@...>

turn version 0.1.0 has been released!

18 messages 2006/11/10

[#224532] McGovern Likes JRuby... — Charles Oliver Nutter <charles.nutter@...>

I'm not sure how to feel about this one :)

26 messages 2006/11/11
[#224570] Re: McGovern Likes JRuby... — "M. Edward (Ed) Borasky" <znmeb@...> 2006/11/11

Charles Oliver Nutter wrote:

[#224574] Re: McGovern Likes JRuby... — David Vallner <david@...> 2006/11/11

M. Edward (Ed) Borasky wrote:

[#224539] Ruby GUI with IDE — "Josh Mr." <kamipride102@...>

Hello all,

33 messages 2006/11/11
[#224543] Re: Ruby GUI with IDE — "M. Edward (Ed) Borasky" <znmeb@...> 2006/11/11

Josh Mr. wrote:

[#224546] Re: Ruby GUI with IDE — AliasX Neo <kamipride102@...> 2006/11/11

M. Edward (Ed) Borasky wrote:

[#224554] Re: Ruby GUI with IDE — David Vallner <david@...> 2006/11/11

AliasX Neo wrote:

[#224569] Re: Ruby GUI with IDE — "M. Edward (Ed) Borasky" <znmeb@...> 2006/11/11

David Vallner wrote:

[#224577] Re: Ruby GUI with IDE — Caleb Tennis <caleb@...> 2006/11/11

>>

[#224578] Re: Ruby GUI with IDE — AliasX Neo <kamipride102@...> 2006/11/11

So I guess a better format for my original question should be:

[#224580] Re: Ruby GUI with IDE — David Vallner <david@...> 2006/11/11

AliasX Neo wrote:

[#224639] regular expression too big — Peter Schrammel <peter.schrammel@...>

Hi,

31 messages 2006/11/12

[#224665] Help convert a Perl user to the Ruby Way. — Sebastian Reid <seb@...>

Hi all.

13 messages 2006/11/12

[#224777] Nitro + Og 0.40.0 — "George Moschovitis" <george.moschovitis@...>

Hello everyone,

17 messages 2006/11/13

[#224817] directory_watcher 0.1.1 — "Tim Pease" <tim.pease@...>

A class for watching files within a directory and generating events

16 messages 2006/11/13
[#224838] Re: directory_watcher 0.1.1 — "Kenosis" <kenosis@...> 2006/11/13

[#224839] Re: directory_watcher 0.1.1 — "Tim Pease" <tim.pease@...> 2006/11/13

On 11/13/06, Kenosis <kenosis@gmail.com> wrote:

[#224933] ruby indentantion — Alfonso <euoar@...>

I have just started with ruby, and something that I have observed is

23 messages 2006/11/14

[#224949] Is 2.0 Integer or Float? — "S. Robert James" <srobertjames@...>

I'd like to be able to do:

18 messages 2006/11/14

[#224997] Assoc method on large array — "gregarican" <greg.kujawa@...>

I am trying to invoke the assoc method on a large array. It seems to

13 messages 2006/11/14

[#225069] Design problem with 'inject' — Gary Boone <dr@...>

20 messages 2006/11/15

[#225109] FastRI 0.2.0: full-text searching, smarter search strategies — Mauricio Fernandez <mfp@...>

FastRI is an alternative to the ri command-line tool. It is *much* faster, and

9 messages 2006/11/15

[#225179] *Fast* way to process large files line by line — Devesh Agrawal <dagrawal@...>

Hi Folks,

20 messages 2006/11/15

[#225288] Re: parse xml file, put results in mysql db — "seb@..." <seb@...>

--- Kathy Simmons <kathys39@hotmail.com> wrote:

15 messages 2006/11/16
[#225291] Re: parse xml file, put results in mysql db — Jon Egil Strand <jes@...> 2006/11/16

>

[#225296] Re: parse xml file, put results in mysql db — Mike Fletcher <lemurific+rforum@...> 2006/11/16

Jon Egil Strand wrote:

[#225330] Re: parse xml file, put results in mysql db — Kathy Simmons <kathys39@...> 2006/11/16

Here's the full code - I'm reading in nmap output in scanfile.xml and

[#225379] IHelp 0.4.0 - full text search — "Ilmari Heikkinen" <ilmari.heikkinen@...>

View and search object documentation from irb.

13 messages 2006/11/16
[#225383] Re: [ANN] IHelp 0.4.0 - full text search — Parragh Szabolcs <parragh@...> 2006/11/16

Ilmari Heikkinen 叝ta:

[#225398] Re: [ANN] IHelp 0.4.0 - full text search — "Ilmari Heikkinen" <ilmari.heikkinen@...> 2006/11/16

Hi,

[#225412] Re: [ANN] IHelp 0.4.0 - full text search — "Ilmari Heikkinen" <ilmari.heikkinen@...> 2006/11/16

> Thanks for noticing this, should be fixed in 0.4.1.

[#225470] Re: [ANN] IHelp 0.4.0 - full text search — Parragh Szabolcs <parragh@...> 2006/11/17

Ilmari Heikkinen 叝ta:

[#225512] Literate Ruby (#102) — Ruby Quiz <james@...>

The three rules of Ruby Quiz:

12 messages 2006/11/17

[#225547] ruby equivalent PHP function is_numeric? — Josselin <josselin@...>

After reading completely my Ruby book, I cannot find a function

15 messages 2006/11/17

[#225681] Ruby vs Java vs c++ — n/a <na@...>

hi, newbie so please be tolerant.... ;)

117 messages 2006/11/18

[#225754] Ruby screen scraping — Chris Gallagher <cgallagher@...>

Hi,

28 messages 2006/11/19

[#225909] Create array of hash values — David Lelong <drlelon@...>

Hi,

13 messages 2006/11/20

[#226023] Bug in ruby? — AliasX Neo <kamipride102@...>

Well, I've spent the last hour or so debugging one of the stupidest

31 messages 2006/11/21

[#226029] array question — Li Chen <chen_li3@...>

Hi all,

41 messages 2006/11/21
[#226031] Re: array question — "Wilson Bilkovich" <wilsonb@...> 2006/11/21

On 11/20/06, Li Chen <chen_li3@yahoo.com> wrote:

[#226120] Hpricot/Rubyful Soup comparison — Wes Gamble <weyus@...>

Has anyone done a head to head comparison of Hpricot and Rubyful Soup

19 messages 2006/11/21

[#226168] New RCRchive, including new process — dblack@...

Hi everyone --

35 messages 2006/11/22

[#226210] invoke system command from within a method — Moritz Reiter <mreiter@...>

-----BEGIN PGP SIGNED MESSAGE-----

11 messages 2006/11/22

[#226228] how do I contribute to Ruby? — "Giles Bowkett" <gilesb@...>

check this out, this is the whiniest change ever, but what I want is

15 messages 2006/11/22

[#226262] Rubyish inst.var initializations — "Victor \"Zverok\" Shepelev" <vshepelev@...>

Hi all.

12 messages 2006/11/23

[#226263] Compare Array Values? — "Daniel N" <has.sox@...>

I want to check to see if two arrays contain the same values.

30 messages 2006/11/23

[#226388] Anyone else getting weird flickr errors? — "Gregory Brown" <gregory.t.brown@...>

When I post to RubyTalk, I've been getting a 'your photo upload

14 messages 2006/11/24

[#226484] Is there a simply way to get every method log itself before running? — "Richard" <RichardDummyMailbox58407@...>

Hi,

11 messages 2006/11/24

[#226537] DictionaryMatcher (#103) — Ruby Quiz <james@...>

The three rules of Ruby Quiz:

18 messages 2006/11/24

[#226553] Ruby/Python/REXX as a MUCK scripting language — Tony Belding <zobeid@...>

I'm interested in using an off-the-shelf interpreted language as a

18 messages 2006/11/25

[#226608] coding practise — sempsteen <sempsteen@...>

Hi all,

23 messages 2006/11/25

[#226707] Ruby/Rails on Gumstix — "M. Edward (Ed) Borasky" <znmeb@...>

For the past couple of weeks, I've been playing around with Ruby on a

16 messages 2006/11/26
[#226751] Re: Ruby/Rails on Gumstix — "Giles Bowkett" <gilesb@...> 2006/11/26

On 11/25/06, M. Edward (Ed) Borasky <znmeb@cesmail.net> wrote:

[#226709] Timestamp — Srinivas Sa <sr.sakhamuri@...>

How do i add two time stamps

23 messages 2006/11/26

[#226731] find index of first non zeo value in array — Josselin <josselin@...>

with :

24 messages 2006/11/26
[#226733] Re: find index of first non zeo value in array — Olivier <o.renaud@...> 2006/11/26

Le dimanche 26 novembre 2006 15:00, Josselin a 馗rit

[#226783] Two Advanced Ruby Performance Questions — Sunny Hirai <sunny@...>

First, I am a Ruby newbie but am an experienced developer of highly

27 messages 2006/11/26
[#226816] Re: Two Advanced Ruby Performance Questions — Edwin Fine <efine145-nospam01@...> 2006/11/26

This post may be stating the obvious, but here goes anyway... I hope I

[#226792] Extremely Noobish Documentation Question — Paco Paco <mepaco@...>

Hello all,

16 messages 2006/11/26

[#226806] Re: ruby and list comprehension — James Cunningham <jameshcunningham@...>

On 2006-11-25 18:47:26 -0500, Brad Tilley <rtilley@vt.edu> said:

12 messages 2006/11/26

[#227012] Is ruby a viable corporate alternative? — "Mr P" <MisterPerl@...>

Our team uses Perl for almost 100% of our projects, as we have for the

27 messages 2006/11/28

[#227041] FileUtils.touch doesn't work — Jeff Toth <jeff@...>

Why won't Ruby just install from the port? I don't know what Ruby is,

12 messages 2006/11/28

[#227108] Simple screen scraper using scrAPI — "doog" <doog@...>

I'm a Ruby novice. Does anyone have an example of a simple screen

14 messages 2006/11/28

[#227160] cidr.rb: port of Perl's Net::CIDR v0.11 available — Jos Backus <jos@...>

Module:

17 messages 2006/11/29

[#227198] Splitting a CSV file into 40,000 line chunks — Drew Olson <olsonas@...>

All -

40 messages 2006/11/29
[#227243] Re: Splitting a CSV file into 40,000 line chunks — James Edward Gray II <james@...> 2006/11/29

On Nov 29, 2006, at 9:32 AM, Drew Olson wrote:

[#227255] Re: Splitting a CSV file into 40,000 line chunks — Drew Olson <olsonas@...> 2006/11/29

Thanks for all the responses. As noted in a post above, I am trying to

[#227219] Need a range, but not getting it. . . . — Peter Bailey <pbailey@...>

Hello,

33 messages 2006/11/29

[#227282] creating directory "http://example.com" — Comfort Eagle <steve@...>

How do I create a directory 'http://example.com' without it getting

16 messages 2006/11/29

[#227302] Wrong results using named arguments — "Jason Vogel" <jasonvogel@...>

Source:

12 messages 2006/11/29

[#227336] Overwhelmed by emails — Daniel DeLorme <dan-ml@...42.com>

This list has way too many messages for the amount of free time I have. Does

12 messages 2006/11/30

[#227388] Timers, scheduling and Ruby — Damphyr <damphyr@...>

Ok, since the original post migh just appear in a month's time, lets

24 messages 2006/11/30
[#227404] Re: Timers, scheduling and Ruby — James Edward Gray II <james@...> 2006/11/30

On Nov 30, 2006, at 7:51 AM, Damphyr wrote:

[#227414] Re: Timers, scheduling and Ruby — ara.t.howard@... 2006/11/30

On Fri, 1 Dec 2006, James Edward Gray II wrote:

[#227416] Re: Timers, scheduling and Ruby — James Edward Gray II <james@...> 2006/11/30

On Nov 30, 2006, at 11:47 AM, ara.t.howard@noaa.gov wrote:

[#227461] Re: Timers, scheduling and Ruby — ara.t.howard@... 2006/11/30

On Fri, 1 Dec 2006, James Edward Gray II wrote:

[#227402] Segmentation fault, proc, eval, long string — Bob Hutchison <hutch@...>

Hi,

27 messages 2006/11/30
[#227415] Re: Segmentation fault, proc, eval, long string [Reproduced] — Bob Hutchison <hutch@...> 2006/11/30

A little more on this...

[#227569] Re: Segmentation fault, proc, eval, long string [Reproduced] — Pit Capitain <pit@...> 2006/12/01

Bob Hutchison schrieb:

[#227426] simple question, looping through each character in a string — "warhero" <beingthexemplarylists@...>

how can I accomplish something like this in ruby:

17 messages 2006/11/30
[#227438] Re: simple question, looping through each character in a string — dblack@... 2006/11/30

Hi --

[#227458] Wisdom of including Rakefile in releases — "Trans" <transfire@...>

I was poking around in the /usr/lib/ruby/gems directory today and

13 messages 2006/11/30

Re: Two Advanced Ruby Performance Questions

From: Sunny Hirai <sunny@...>
Date: 2006-11-27 05:58:48 UTC
List: ruby-talk #226845
Hi All and thanks for the responses.

Before I go on, I thought I should note that Vidar Hokstad is 
understanding my particular problem the best.

Thank you for all the great responses but I would like to mention that I 
have a good grasp of how we will probably need to scale our application 
and the potential pitfalls. As I mentioned, we have already scaled one 
application to a good scale. I am looking for specific answers to the 
fill in the holes of my knowledge with Ruby. I am a Ruby newbie, but I 
have read three books on Ruby and a couple of them multiple times. I'm 
pretty much aware of most of what I want to know about the other 
parameters that you have asked me to consider.

However, in no particular order, I'd like to address these issues to 
show you that I'm not looking for the "typical" answers as I mentioned 
in the OP.

1. This is a NEW application so many won't be switching. I will write 
the majority of it to start. It IS expensive for me to switch, but I'm 
thinking what each language will cost/save us 2-3 years down the road. 
Furthermore, I wrote all of the original code in the current application 
and will write all the core code for the new one. In other words, I will 
bear the brunt of the complexity which I'm currently determining 
whethere it is worht it. None of our developers except one actually knew 
ColdFusion from the start and were all taught ColdFusion on the job. All 
except two developers (not counting me) were hired less than a year ago 
in a 6 person team which means they also had to learn both a language 
and a framework. This is because it is difficult to find great 
ColdFusion developers. Rather, we hired smart people and taught them a 
new language. We will keep many developers with the old app and some 
will come over to the new app team. We are hiring two new people who 
will likely not know ColdFusion or Ruby anyways. I think ColdFusion is 
easier to learn but Ruby has a better syntax and I personally like its 
design philosophy better (though I like that of ColdFusion too). I am 
actually counting on, in the long term, a stable version of a VM, but am 
willing to wait a year to get it and just pack power against it in the 
shorter term.

2. As a database backed app, dropping to C is not needed for most of our 
application and having it split into two languages is costly from a 
development point of view so I'd like to keep the main app in one 
language only; however, there are performance oriented portions like a 
Photoshop like image processor that I've written in C# and .Net as a web 
service. It is Mono compatible but Mono seems to choke randomly. We used 
C# because of its strong underlying graphic framework, its Java like 
memory protection and still the ability to drop to UNSAFE mode where the 
custom filters, merging and effects code need to execute very quickly. 
We also have portions of interoperability in Java. Most likely we will 
also have a Lucene search engine in Java. All of these operate (or will 
operate) as web services.

3. I address the overhead of web services operations constantly. Even 
when working within the SAME language, I benchmark overhead and test the 
cost of each operation. For example, ColdFusion has a native WDDX (XML 
like) conversion format that we used to use to fold multiple fields into 
a single field for caching in a database. After testing, I wrote a 
custom encoding/decoding format that executes about 1-2 orders of 
magnitude faster if I remember correctly. I also weigh the cost of 
calling methods. In fact, one of the major reasons for wanting a switch 
to Ruby is that the object instantiation cost in ColdFusion is very 
high. It takes about 1ms per instantiation. This means that if I need to 
instantiate an object for say each row in a 50 row query for output, I 
have added a 50ms overhead to our project (in which we are aiming at 
under 100ms for total page execution times). And to cover the next 
response, YES, I know I shouldn't be doing this in an environment where 
object instantiation is expensive so I don't do this. Instead, I have 
three ways to instantiate an object which I've created in the framework, 
two ways which fake it in a manner that is 2 orders of magnitude faster; 
however, the syntax is ugly. It also adds to development time greatly 
because I need to decide every time which model I need to use and 
sometimes, the best model changes over time. I could use the fastest 
method (with the ugliest code) but it just introduces a layer of 
complexity and potential for bugs to the code which goes against my 
instincts. I constantly weigh app performance against developer 
performance. Most likely, however, is that I don't use OOP at all and 
inline the code but this results in bad reusability.

Okay, now, that I've (hopefully) convinced you I'm attacking the problem 
at an atypical level, back to the regular program. ;)

I found some of the information I wanted in not the eRuby or ERB pages 
but in mod_ruby.

It suggests that ONE instance of Ruby executes to handle all the 
threads; however, it doesn't go into too much detail about how this is 
handled. So, for example, if I call

require 'somelibrary'

It is actually only included into the code once.

However, it doesn't say anything about where scopes begin and end. The 
general feeling I'm getting is that there is very little documentation 
on the guts of Ruby and I'd like to learn about them without having to 
read the source code which I probably wouldn't understand anyways.

For example, I'd like to know how multiple threads are handled. It 
appears that objects in the "global" scope are shared but objects in 
normal scopes are not. I found this in the FAQ for mod_ruby here:

http://wiki.modruby.net/en/?FAQ#Why+are+changes+to+my+library+not+reflected+in+the+server%3F

http://wiki.modruby.net/en/?FAQ#How+do+I+keep+an+object+instance+between+invocations+of+a+page%2C+for+example%2C+a+persistent+database+handle%3F

But it is REALLY unclear how this all works. So for example, if I extend 
the original Array object, this does NOT persist between requests. But 
if I add the extension in a "require"d file, it then does persist but 
does NOT reload. I find this contradictory. It probably has something to 
do with this statement in the FAQ:

---
You can't override classes in your mod_ruby scripts directly. (Instead, 
a new class will be defined.) Because mod_ruby scripts are loaded by 
Kernel#load(filename, true).

If you have to override existing classes, please do it in a library, 
then require it from your mod_ruby scripts.
---

But I'm not really sure how Kernal#load works underneath either.

I'd also like to know how to deal with locking global variables for 
transactional use in a multi-threaded environment (e.g. web server) or 
if this is even possible.

I still don't know whethere eRuby can be called from within Ruby or if 
it has to be called from the command line or through some sort of 
adapter.

I feel like Ruby needs a "High Performance Ruby" book. There is one for 
MySQL and that is the only reason I had the confidence to make the 
decision to switch out of MS SQL Server. Knowing what I'm up against 
would help tremendously.

Thanks for your feedback. If anybody knows anything more about the guts 
of mod_ruby and/or Ruby, please let me know.

All the best,

Sunny Hirai
CEO, MeZine Inc.

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Posted via http://www.ruby-forum.com/.

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