split in ruby

results

results from time:

# ruby
% time ruby split.rb 
real	1m18.252s
user	1m16.855s
sys	0m0.979s

=============

# nimrod
% time ./split
real	2m39.531s
user	2m38.931s
sys	0m0.480s

# c
% time ./splitter
real	0m13.872s
user	0m13.562s
sys	0m0.300s

split.nim

import strutils

let fn = "junkdata.txt"
for line in lines(fn):
  let 
    ln = line.split("\t")
    data1 = ln[0]
    data2 = ln[1]

split.rb

#!/usr/bin/env ruby

# create file if not exist.
fn = "junkdata.txt"
if not File.exist?(fn)
  File.open("junkdata.txt","w") do |f|
    100_000_000.times { f.puts "this is data field number1\tV" }
  end
  puts "file created. run again to parse. exitting"
  exit
end

      

File.open(fn,"rb").each do |line|
  line.chomp!
  data1,data2 = line.split("\t")
end

splitter.c

#include <stdio.h>


int main() {

  char data1[70];
  char data2[2];
  char line[100];
  
  int j = 0;
  
  FILE *fp = fopen("junkdata.txt", "rb");
  if (!fp) {
    printf("Couldn't open file for reading\n");
    return 0;
  }
  while(fgets(line, 99, fp) != NULL){
    sscanf(line, "%s\t%s\n",  data1, data2);
     
    j++;
    /*
    if(0 && j < 100) { 
      printf("%d) %s -> %s\n", j,data1,data2);
    }
    */
  }
  printf("%d\n",j);
}