Projects, which use JSR292

[Charles Oliver Nutter]

On Fri, Feb 18, 2011 at 6:17 AM, Christian Thalinger
<christian.thalinger at oracle.com> wrote:
> Is there a switch to turn direct ruby-to-ruby calls on and off?  I'd like to compare inlining trees and maybe code output.

Just pushed a couple for you in a4a0802:

jruby.compile.invokedynamic.rubyDirect=true|false (Ruby targets
directly bind; defaults to true)
jruby.compile.invokedynamic.nativeDirect=true|false (Native (Java)
targets directly bind; defaults to true)

Not to put any pressure on, but I had hoped to see this
directly-binding Ruby calls would *improve* perf :) With this in
place, the only thing dynopt does that my indy logic doesn't do is
dispatch literal fixnums directly through as long values (rather than
as RubyFixnum objects...and yes, this is only in place for literals).
Ideally, I'd expect optimized invokedynamic to perform as well as
dynopt in this situation.

Here's output with all four permutations:

~/projects/jruby ➔
JAVA_HOME=../mlvm/sources/build/bsd-i586/j2sdk-image/ jruby --server
-X+C -Xcompile.invokedynamic=true -J-XX:+UnlockExperimentalVMOptions
-J-XX:+EnableInvokeDynamic -J-XX:+UnlockDiagnosticVMOptions
-J-XX:MaxInlineSize=150 -J-XX:InlineSmallCode=5000
bench/bench_fib_recursive.rb 5
832040
  1.037000   0.000000   1.037000 (  0.882000)
832040
  0.479000   0.000000   0.479000 (  0.479000)
832040
  0.474000   0.000000   0.474000 (  0.474000)
832040
  0.458000   0.000000   0.458000 (  0.458000)
832040
  0.461000   0.000000   0.461000 (  0.461000)

~/projects/jruby ➔
JAVA_HOME=../mlvm/sources/build/bsd-i586/j2sdk-image/ jruby --server
-X+C -Xcompile.invokedynamic=true -J-XX:+UnlockExperimentalVMOptions
-J-XX:+EnableInvokeDynamic -J-XX:+UnlockDiagnosticVMOptions
-J-XX:MaxInlineSize=150 -J-XX:InlineSmallCode=5000
-Xcompile.invokedynamic.rubyDirect=false bench/bench_fib_recursive.rb
5
832040
  0.363000   0.000000   0.363000 (  0.297000)
832040
  0.160000   0.000000   0.160000 (  0.160000)
832040
  0.156000   0.000000   0.156000 (  0.156000)
832040
  0.155000   0.000000   0.155000 (  0.155000)
832040
  0.162000   0.000000   0.162000 (  0.162000)

~/projects/jruby ➔
JAVA_HOME=../mlvm/sources/build/bsd-i586/j2sdk-image/ jruby --server
-X+C -Xcompile.invokedynamic=true -J-XX:+UnlockExperimentalVMOptions
-J-XX:+EnableInvokeDynamic -J-XX:+UnlockDiagnosticVMOptions
-J-XX:MaxInlineSize=150 -J-XX:InlineSmallCode=5000
-Xcompile.invokedynamic.nativeDirect=false
bench/bench_fib_recursive.rb 5
832040
  1.420000   0.000000   1.420000 (  1.345000)
832040
  1.030000   0.000000   1.030000 (  1.030000)
832040
  1.012000   0.000000   1.012000 (  1.012000)
832040
  1.023000   0.000000   1.023000 (  1.023000)
832040
  1.010000   0.000000   1.010000 (  1.011000)

~/projects/jruby ➔
JAVA_HOME=../mlvm/sources/build/bsd-i586/j2sdk-image/ jruby --server
-X+C -Xcompile.invokedynamic=true -J-XX:+UnlockExperimentalVMOptions
-J-XX:+EnableInvokeDynamic -J-XX:+UnlockDiagnosticVMOptions
-J-XX:MaxInlineSize=150 -J-XX:InlineSmallCode=5000
-Xcompile.invokedynamic.rubyDirect=false
-Xcompile.invokedynamic.nativeDirect=false
bench/bench_fib_recursive.rb 5
832040
  0.380000   0.000000   0.380000 (  0.297000)
832040
  0.167000   0.000000   0.167000 (  0.167000)
832040
  0.157000   0.000000   0.157000 (  0.157000)
832040
  0.156000   0.000000   0.156000 (  0.156000)
832040
  0.164000   0.000000   0.164000 (  0.164000)

- Charlie