1) "Ruby Scales, and It’s Fast" makes a point of talking about MRI not Yarv.
2) The fastest of those PHP programs relative to Ruby 1.9 (n-body and mandelbrot) don't seem to make any use of the PHP standard library - which undermines your "library is written in C" point.
3) If you look at the quad-core measurements you'll see PHP but you won't see Ruby 1.9 or MRI because (unlike PHP) no one has contributed Ruby programs that can make use of more than one processor.
1) "Ruby Scales, and It’s Fast" makes a point of talking about MRI not Yarv.
2) The fastest of those PHP programs relative to Ruby 1.9 (n-body and mandelbrot) don't seem to make any use of the PHP standard library - which undermines your "library is written in C" point.
3) If you look at the quad-core measurements you'll see PHP but you won't see Ruby 1.9 or MRI because (unlike PHP) no one has contributed Ruby programs that can make use of more than one processor.
http://shootout.alioth.debian.org/u32q/benchmark.php?test=al...