For a comparison run:
make bench
followed by [benchcmp](http://code.google.com/p/go/source/browse/misc/benchcmp benchcmp) on the resulting files:
$GOROOT/misc/benchcmp $GOPATH/src/github.com/gogo/protobuf/test/mixbench/marshal.txt $GOPATH/src/github.com/gogo/protobuf/test/mixbench/marshaler.txt $GOROOT/misc/benchcmp $GOPATH/src/github.com/gogo/protobuf/test/mixbench/unmarshal.txt $GOPATH/src/github.com/gogo/protobuf/test/mixbench/unmarshaler.txt
Benchmarks ran on Revision: 11c56be39364
June 2013
Processor 2,66 GHz Intel Core i7
Memory 8 GB 1067 MHz DDR3