Performance of jruby vs jruby-complete.jar

casper_the_ghost · August 17, 2010, 5:07pm

hi,

is there a particular reason why the performance of jruby-complete.jar
is so bad. is more the then factor 2 between them. see

gist.github.com

https://gist.github.com/mkristian/530288

jruby

$ time jruby -S rake -T
rake about              # List versions of all Rails frameworks and the env...
rake db:create          # Create the database from config/database.yml for ...
rake db:drop            # Drops the database for the current Rails.env (use...
rake db:fixtures:load   # Load fixtures into the current environment's data...
rake db:migrate         # Migrate the database (options: VERSION=x, VERBOSE...
rake db:migrate:status  # Display status of migrations
rake db:rollback        # Rolls the schema back to the previous version (sp...
rake db:schema:dump     # Create a db/schema.rb file that can be portably u...
rake db:schema:load     # Load a schema.rb file into the database

This file has been truncated. show original

jruby-complete

$ time java -jar jruby-complete-1.5.1.jar -S rake -T
rake about              # List versions of all Rails frameworks and the env...
rake db:create          # Create the database from config/database.yml for ...
rake db:drop            # Drops the database for the current Rails.env (use...
rake db:fixtures:load   # Load fixtures into the current environment's data...
rake db:migrate         # Migrate the database (options: VERSION=x, VERBOSE...
rake db:migrate:status  # Display status of migrations
rake db:rollback        # Rolls the schema back to the previous version (sp...
rake db:schema:dump     # Create a db/schema.rb file that can be portably u...
rake db:schema:load     # Load a schema.rb file into the database

This file has been truncated. show original

jruby-complete with bootclasspath

$ time java -Xbootclasspath/a:jruby-complete-1.5.1.jar -jar jruby-complete-1.5.1.jar -S rake -T
rake about              # List versions of all Rails frameworks and the env...
rake db:create          # Create the database from config/database.yml for ...
rake db:drop            # Drops the database for the current Rails.env (use...
rake db:fixtures:load   # Load fixtures into the current environment's data...
rake db:migrate         # Migrate the database (options: VERSION=x, VERBOSE...
rake db:migrate:status  # Display status of migrations
rake db:rollback        # Rolls the schema back to the previous version (sp...
rake db:schema:dump     # Create a db/schema.rb file that can be portably u...
rake db:schema:load     # Load a schema.rb file into the database

This file has been truncated. show original

which is against a freshly created rails3 application and they both
use exactly the same environment, OS, java, gems, etc.

how I improve the situation with jruby-complete ?

regards Kristian

To unsubscribe from this list, please visit:

http://xircles.codehaus.org/manage_email

casper_the_ghost · August 17, 2010, 5:14pm

On 17 Aug 2010, at 16:07, kristian wrote:

is there a particular reason why the performance of jruby-complete.jar
is so bad. is more the then factor 2 between them. see
jruby · GitHub
which is against a freshly created rails3 application and they both
use exactly the same environment, OS, java, gems, etc.

how I improve the situation with jruby-complete ?

Good question. I get similar results: gist:530333 · GitHub

I’d love to know what’s going on here.

Dan

Daniel L.

twitter.com/danlucraft
danlucraft.com/blog

To unsubscribe from this list, please visit:

http://xircles.codehaus.org/manage_email

casper_the_ghost · August 17, 2010, 5:30pm

On Aug 17, 2010, at 11:13 AM, Daniel L. wrote:

I’d love to know what’s going on here.

Dan

Daniel L.

twitter.com/danlucraft
- Daniel Lucraft

They are not equivalent commands. I suspect that JVM needs to look for
each class found in jruby.jar in order to choose the correct class to
run main() from.

To wit, giving the bootclasspath makes a big difference.
gist:530410 · GitHub

To unsubscribe from this list, please visit:

http://xircles.codehaus.org/manage_email

casper_the_ghost · August 17, 2010, 5:34pm

On Tue, Aug 17, 2010 at 10:29 AM, Hirotsugu A. [email protected]
wrote:

how I improve the situation with jruby-complete ?
twitter.com/danlucraft
- Daniel Lucraft

They are not equivalent commands. I suspect that JVM needs to look for each class found in jruby.jar in order to choose the correct class to run main() from.

To wit, giving the bootclasspath makes a big difference. gist:530410 · GitHub

Yeah, I suspect we’re running into slowness due to class verification
here – JRuby has to load a lot of classes :). Putting the jar on the
bootclasspath avoids verification. You can also try passing
-Xverify:none on the command-line (but this avoids verifying any
classes at all, so be careful with untrusted classes).

/Nick

To unsubscribe from this list, please visit:

http://xircles.codehaus.org/manage_email

casper_the_ghost · August 17, 2010, 5:49pm

On Aug 17, 2010, at 11:40 AM, kristian wrote:

hmm, with my more complex example there is a slight improvement with
appending the bootclasspath but the factor 2 remains:

jruby · GitHub

so there is more going on here.

Kristian

There are other options given to JVM, of course. Take a look at the
second snippet I just added in gist:530410 · GitHub (with
native launcher; shell script version may be slightly different)

To unsubscribe from this list, please visit:

http://xircles.codehaus.org/manage_email

casper_the_ghost · August 17, 2010, 5:41pm

hmm, with my more complex example there is a slight improvement with
appending the bootclasspath but the factor 2 remains:

gist.github.com

https://gist.github.com/mkristian/530288

jruby

$ time jruby -S rake -T
rake about              # List versions of all Rails frameworks and the env...
rake db:create          # Create the database from config/database.yml for ...
rake db:drop            # Drops the database for the current Rails.env (use...
rake db:fixtures:load   # Load fixtures into the current environment's data...
rake db:migrate         # Migrate the database (options: VERSION=x, VERBOSE...
rake db:migrate:status  # Display status of migrations
rake db:rollback        # Rolls the schema back to the previous version (sp...
rake db:schema:dump     # Create a db/schema.rb file that can be portably u...
rake db:schema:load     # Load a schema.rb file into the database

This file has been truncated. show original

jruby-complete

$ time java -jar jruby-complete-1.5.1.jar -S rake -T
rake about              # List versions of all Rails frameworks and the env...
rake db:create          # Create the database from config/database.yml for ...
rake db:drop            # Drops the database for the current Rails.env (use...
rake db:fixtures:load   # Load fixtures into the current environment's data...
rake db:migrate         # Migrate the database (options: VERSION=x, VERBOSE...
rake db:migrate:status  # Display status of migrations
rake db:rollback        # Rolls the schema back to the previous version (sp...
rake db:schema:dump     # Create a db/schema.rb file that can be portably u...
rake db:schema:load     # Load a schema.rb file into the database

This file has been truncated. show original

jruby-complete with bootclasspath

$ time java -Xbootclasspath/a:jruby-complete-1.5.1.jar -jar jruby-complete-1.5.1.jar -S rake -T
rake about              # List versions of all Rails frameworks and the env...
rake db:create          # Create the database from config/database.yml for ...
rake db:drop            # Drops the database for the current Rails.env (use...
rake db:fixtures:load   # Load fixtures into the current environment's data...
rake db:migrate         # Migrate the database (options: VERSION=x, VERBOSE...
rake db:migrate:status  # Display status of migrations
rake db:rollback        # Rolls the schema back to the previous version (sp...
rake db:schema:dump     # Create a db/schema.rb file that can be portably u...
rake db:schema:load     # Load a schema.rb file into the database

This file has been truncated. show original

so there is more going on here.

Kristian

On Tue, Aug 17, 2010 at 9:04 PM, Nick S. [email protected]
wrote:

-Xverify:none on the command-line (but this avoids verifying any

To unsubscribe from this list, please visit:

http://xircles.codehaus.org/manage_email

casper_the_ghost · August 19, 2010, 5:37pm

thanx a lot - I going to use this little result in my jruby launcher:

gist.github.com

https://gist.github.com/mkristian/538166

jruby vs jruby-complete

$ time jruby -e 'puts "hi"'hi

real	0m0.551s
user	0m0.444s
sys	0m0.104s

$ time java -client -Xbootclasspath/a:/home/kristian/.m2/repository/org/jruby/jruby-complete/1.5.1/jruby-complete-1.5.1.jar org.jruby.Main -e 'puts "hi"'
hi

real	0m0.569s

This file has been truncated. show original

and jruby-complete can be even faster then the jruby installation !

and found out how to improve start up of maven as well

regards Kristian

On Tue, Aug 17, 2010 at 9:19 PM, Hirotsugu A. [email protected]
wrote:

Kristian

To unsubscribe from this list, please visit:

http://xircles.codehaus.org/manage_email