Hi again. These last days I've been busy reimplementing the RbYAML Scanner in Java. The first implementation is very rough and unruly, but it's finished enough so I can measure performance. (The Scanner is the most performance intensive parts of the YAML system). For testing, I've taken a file called gems2.yml, which is a small extract from the full gemspec, and run this through the Scanner a 100 times. I've done this with C Ruby for RbYAML, and Java 1.4.2 for JvYAML. The results are very encouraging in themselves: RbYAML: D:\Project\rbyaml\test>ruby test_time_tokens.rb yaml/gems2.yml loading a file 100 times took 5078.0 milli seconds or 5.078 seconds
D:\Project\jruby>java -cp lib\jruby.jar org.jvyaml.ScannerImpl d:\project\rbyaml\test\yaml\gems2.yml Walking through the tokens for the file: d:\project\rbyaml\test\yaml\gems2.yml took 281ms, or 0.281 seconds As you can see, this is almost 20 times faster, without any real optimizing of the Java parts, and quite heavy optimizing of RbYAML. But my plans really doesn't stop here. Actually, as I'll soon announce in my blog, I intend to release JvYAML as it's own project too. Regards Ola Bini _______________________________________________ Jruby-devel mailing list Jruby-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jruby-devel
