Ruby 1.9.3 released • Hacker News Board

Re: Ruby 1.9.3 released

#21

Post by Game_Ender » Sun, Oct 30, 2011, 5:49 PM UTC

lilpirate wrote: post #7

zanst wrote: post #4

Good news!

Yeah! I plan on to start learning Ruby.

Give Python a look as well. Also, never try to embed Ruby in a C/C++ application it's not designed for it.

Re: Ruby 1.9.3 released

#22

Post by travisjeffery » Sun, Oct 30, 2011, 5:51 PM UTC

zdw wrote: post #18

Apparently the licensing has changed as well - it's now BSD dual-licensed, rather than GPLv2: http://svn.ruby-lang.org/repos/ruby/tags/v1_9_3_0/NEWS

That was on the linked page:

> Also the license of Ruby has changed. Previously Ruby has been released under GPLv2 and "Ruby" license. But Ruby 1.9.3 is released under a joint 2-clause BSD license and "Ruby" license.

Re: Ruby 1.9.3 released

#23

Post by wmoxam » Sun, Oct 30, 2011, 6:18 PM UTC

cmer wrote: post #17

sirn wrote: post #15

Earlier quoted context omitted.

Actually, Ruby used to follows the "unstable odd, stable even" versioning scheme but they seems to quit doing that since 1.9.1 (since both 1.9.1 and 1.9.2 are declared stable[1]) [1]: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/... EDIT: provide a source about Ruby 1.9.1

Good to know! I didn't realize 1.9.1 was considered stable.

Similarly, 1.8.7 is the stable version of the 1.8 series.

Re: Ruby 1.9.3 released

#24

Post by tedsuo » Sun, Oct 30, 2011, 6:47 PM UTC

I'm a little unclear about threads in ruby 1.9. I've been told in the past that threads in ruby were problematic. Can anyone illuminate the current state of affairs?

Re: Ruby 1.9.3 released

#25

Post by rhizome » Sun, Oct 30, 2011, 6:48 PM UTC

zmanji wrote: post #5

goshakkk wrote: post #3

Earlier quoted context omitted.

Yes. "Library loading or locking in multi-threaded program is improved, for example."

D'oh, I don't understand how I missed that one.

It kind of understates the issue and hides it behind multi-threading.

Re: Ruby 1.9.3 released

#26

Post by riffraff » Sun, Oct 30, 2011, 7:01 PM UTC

tedsuo wrote: post #24

I'm a little unclear about threads in ruby 1.9. I've been told in the past that threads in ruby were problematic. Can anyone illuminate the current state of affairs?

1.8 had green threads and when the interpreter blocked on some operations it would block all the threads.

1.9 uses native threads but it has a global interpreter lock which has known issues.

I am not sure what the improvements to locking in 1.9.3, as the changelog has quite a few commits related to that.

Re: Ruby 1.9.3 released

#27

Post by bobbywilson0 » Sun, Oct 30, 2011, 7:01 PM UTC

Stratego wrote: post #8

ruby-build was already updated to support 1.9.3-p0, just clone the latest: https://github.com/sstephenson/ruby-build

if you have ruby-build already installed and you pull, you need to rerun ./install.sh

Re: Ruby 1.9.3 released

#28

Post by wycats » Sun, Oct 30, 2011, 7:15 PM UTC

riffraff wrote: post #26

tedsuo wrote: post #24

I'm a little unclear about threads in ruby 1.9. I've been told in the past that threads in ruby were problematic. Can anyone illuminate the current state of affairs?

1.8 had green threads and when the interpreter blocked on some operations it would block all the threads. 1.9 uses native threads but it has a global interpreter lock which has known issues. I am not sure what the improvements to locking in 1.9.3, as the changelog has quite a few commits related to that.

In both Ruby 1.8 and 1.9, Ruby code will not cause all threads to block when the CPU is idle. However, poorly coded C libraries that blocked on IO without providing Ruby a file descriptor (via rb_thread_select) could cause all threads to block.

Those libraries have largely been fixed or replaced (e.g. mysql with mysql2). Ruby 1.9.2 also provides a mechanism for C code to release the GIL if it does not involve any Ruby code, which is used Blythe typecasting code in mysql2, for instance.

Re: Ruby 1.9.3 released

#29

Post by kenips » Sun, Oct 30, 2011, 7:35 PM UTC

ruby-debug19 is still not updated...

Re: Ruby 1.9.3 released

#30

Post by kenips » Sun, Oct 30, 2011, 7:37 PM UTC

bobbywilson0 wrote: post #27

Stratego wrote: post #8

ruby-build was already updated to support 1.9.3-p0, just clone the latest: https://github.com/sstephenson/ruby-build

if you have ruby-build already installed and you pull, you need to rerun ./install.sh

Homebrew also updated: https://github.com/mxcl/homebrew/commit/ae9b146fb64cc2db914b...

Just brew update and upgrade.