The document contains results from various benchmark tests measuring the performance of different programming languages and implementations like Node.js, Java, Python, and others. It includes graphs showing the time taken to complete tasks like string concatenation and list operations. The benchmarks also compare just-in-time compilers and tracing JIT performance for some languages.

1. LL Planet 2011 LT

2. HTML
5 × 20 × 10
3
Mac OS X 10.6, Core2 Duo 2GHz
http://bit.ly/pNNmGY

3. LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)
0 40000 80000

4. g++ (4.2.6)
Java (1.6.0_26)
PyPy (1.6.0)
LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)
0 40000 80000 120000 160000

5. g++ (4.2.6)
Java (1.6.0_26)
PyPy (1.6.0)
LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)
0 40000 80000 120000 160000 200000 240000 280000 320000

6. g++ (4.2.6)
Java (1.6.0_26)
PyPy (1.6.0)
LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)

7. Node.js (0.5.4)
g++ (4.2.6)
Java (1.6.0_26)
PyPy (1.6.0)
LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)
0 500000 1000000 1500000 2000000

8. 1
2
(Tracing JIT)
Node.js 0.5.1

9. Node.js (0.5.4)
g++ (4.2.6)
Java (1.6.0_26)
PyPy (1.5.0-a0)
LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)
0 50000 100000 150000 200000 250000

10. Tenjin (node.js)
Tenjin (perl)
Tenjin (php)
Tenjin (ruby)
Tenjin (python)
0 10000 20000 30000 40000

11. Node.js (0.5.4)
g++ (4.2.6)
Java (1.6.0_26)
PyPy (1.5.0-a0)
LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)
0 50000 100000 150000 200000 250000

12. Node.js (0.5.4)
g++ (4.2.6)
Java (1.6.0_26)
PyPy (1.5.0-a0)
LuaJIT (2.0.0-b8)
PHP (5.3.6)
Perl (5.12.1)
Lua (5.1.4)
Python (3.2.1)
Rubinius (1.2.4)
Go (6g r57.2)
Ruby (1.9.2-p290)
0 50000 100000 150000 200000 250000

13. g++: std::string
Java: StringBuilder + toString()
Java: StringBuilder w/o toString()
0 50000 100000 150000 200000 250000

14. list.append() Python (3.2.1)
append()
list.extend()
extend()
extend()+str()
buf[-1:] = ()
StringIO.write()
0 20000 40000 60000 80000 100000
list.append() PyPy (1.6.0)
append()
list.extend()
extend()
extend()+str()
buf[-1:] = ()
StringIO.write()
0 20000 40000 60000 80000 100000

15. V8 (+ crankshaft)
StringBuilder#toString()
JIT