by reid.write:

STR:
1. clone the git repository here: git@github.com:tarasglek/jsonbench.git
2. Generate some sample JSON data using the instructions in the README
3. Run the go json benchmark which is in gojson/src/jsonbench/json.go

What is the expected output?
I expected to see performance roughly in line with Java (using Jackson for json
parsing). On my test machine, the Java benchmark results in the following:
Processing 436525928 bytes took 5491 ms (75.82 MB/s)

What do you see instead?
Significantly slower performance, using the same input file:
Duration: 27.497043818s, 15.14 MB/s

Which compiler are you using (5g, 6g, 8g, gccgo)?
Not sure

Which operating system are you using?
Linux dell-ubuntu 3.2.0-45-generic #70-Ubuntu SMP Wed May 29 20:12:06 UTC 2013 x86_64
x86_64 x86_64 GNU/Linux

Which version are you using?  (run 'go version')
go version go1.1 linux/amd64