Just to add to the conversation:
Each file is 1.7MB
**System specs**
OS: Ubuntu 16.04 xenial
Kernel: x86_64 Linux 4.4.0-83-generic
CPU: Intel Core i5-6600K @ 3.9GHz
RAM: 15980MiB
**Python 2.7**
$ time python test1.py test1.log test1-2.log
real 0m0.042s
user 0m0.040s
sys 0m0.000s
**Nim 0.17.2**
$ nim c -d:release test1.nim
$ time ./test1 test1.log test1-2.log
real 0m0.056s
user 0m0.044s
sys 0m0.008s
**Nim 0.17.2 (DEBUG)**
$ nim c -o:test1-dev test1.nim
$ time ./test1-dev test1.log test1-2.log
real 0m0.273s
user 0m0.264s
sys 0m0.008s
Times seem correct to me.
We have to remember that the majority of Python's file I/O stuff is implemented
in C. The fact that Nim is ever so slightly slower than native compiled C is
not surprising.
On my system, compiling with `-d:release` gives a 5x speed increase. This is
also not surprising.
