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Ruby 1.8.6 (i486-linux

roycstannard

5/1/2008 12:59:00 AM

First post here, I hope this is the right forum :)

I've installed Ruby on a Ubuntu Gutsy box - Pentium 4 2.8Ghz, but when I
check the version with the Rails splash screen (localhost:3000) it shows
- Ruby version 1.8.6 (i486-linux). How can I upgrade to a i686 version?

Thanx for any help.
--
Posted via http://www.ruby-....
5 Answers

Kyle Hunter

5/1/2008 1:17:00 AM

0

Roy Stannard wrote:
> First post here, I hope this is the right forum :)
>
> I've installed Ruby on a Ubuntu Gutsy box - Pentium 4 2.8Ghz, but when I
> check the version with the Rails splash screen (localhost:3000) it shows
> - Ruby version 1.8.6 (i486-linux). How can I upgrade to a i686 version?
>
> Thanx for any help.

I believe that Ubuntu compiles all packages for i486 so that people do
not have compatibility problems with binaries. You might be able to find
one online, or you can of course compile it yourself with the proper
CFLAGS.
--
Posted via http://www.ruby-....

roycstannard

5/1/2008 4:43:00 AM

0

Kyle Hunter wrote:
> Roy Stannard wrote:
>> First post here, I hope this is the right forum :)
>>
>> I've installed Ruby on a Ubuntu Gutsy box - Pentium 4 2.8Ghz, but when I
>> check the version with the Rails splash screen (localhost:3000) it shows
>> - Ruby version 1.8.6 (i486-linux). How can I upgrade to a i686 version?
>>
>> Thanx for any help.
>
> I believe that Ubuntu compiles all packages for i486 so that people do
> not have compatibility problems with binaries. You might be able to find
> one online, or you can of course compile it yourself with the proper
> CFLAGS.

The only compiling I've done in Ubuntu is with ffmpeg which was pretty
straightforward. But what would be the proper CFLAGS settings for a Ruby
i686 compilation and would it bw necessary to compile Rails and Gems
too. Sorry if these questions seem naive but this is a noob writing here

Thanx

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

Phillip Gawlowski

5/1/2008 4:45:00 AM

0

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Roy Stannard wrote:
| First post here, I hope this is the right forum :)
|
| I've installed Ruby on a Ubuntu Gutsy box - Pentium 4 2.8Ghz, but when I
| check the version with the Rails splash screen (localhost:3000) it shows
| - Ruby version 1.8.6 (i486-linux). How can I upgrade to a i686 version?

As Kyle pointed out, you can probably find Ubuntu .deb files to install
Ruby 1.8.6-i686.

However, the speed gains shouldn't be all that great, and the versions
are equivalent, anyway.

In short: worrying about a -686 version is unnecessary and a waste of
your precious time. ;)

- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan
Blog: http://justarubyist.bl...

~ - You know you've been hacking too long when...
...you realize you have never seen half of your best friends.
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Phillip Gawlowski

5/1/2008 4:59:00 AM

0

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Roy Stannard wrote:

|
| The only compiling I've done in Ubuntu is with ffmpeg which was pretty
| straightforward. But what would be the proper CFLAGS settings for a Ruby
| i686 compilation and would it bw necessary to compile Rails and Gems
| too. Sorry if these questions seem naive but this is a noob writing here

Compiling Ruby on Ubuntu isn't trivial. But searching the web for
'compiling ruby on ubuntu' should unearth what you need.

Usually, you don't need special CFLAGS, as long as your compiler can
compile for the i686 instruction set (confused yet?). If your compiler
cannot compile using -mtune=i686[0], you'll have to compile the compiler
to include that optimization (and you don't want to compile GCC. Trust
me. Been there, done that, stared at the output for a long, long while).

However, as long as you have the compiler, all gems you install *and*
that use C extension libraries (like tmail, or hpricot but not Rails)
should pick up your changes correctly.

Gems that are just plain old Ruby don't need to be 'recompiled' (since
Ruby code isn't, generally, compiled anyway, as Ruby is interpreted,
much unlike C/C++).

That being said, the question is more one of aesthetics, rather than power.

[0]
<http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/i386-and-x86_002d64-Options.html#i386-and-x86_002d64-O...

- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan
Blog: http://justarubyist.bl...

At the base of all these aristocratic races the predator is not
to be mistaken, the splendorous blond beast, avidly rampant for
plunder and victory.
~ -- Friedrich Nietzsche (1844-1900)
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roycstannard

5/2/2008 4:51:00 AM

0

Thanx to all for the helpful advice.

Yeah you're right, why waste time more minimal gains. I had thought
compiling for the i686 might make some real difference but if not,
forget it.

regards
--
Posted via http://www.ruby-....