From: bobx@... (Bob)
Date: 2002-09-24T21:00:25+09:00
Subject: My script showing Python speed vs. Ruby (long, includes code)

OS = Windows XP
File size = 24MB
Total Keywords: 51

Ruby version = ruby 1.7.2 (2002-07-02) [i386-mswin32]
Python = ActivePython-2.2.1-222

PYTHON SCRIPT:

# import the needed libs
import sys, string, re, time

# make sure the command line arguments are there
if len(sys.argv) < 3:
    sys.exit("usage: fread.py [log file] [hit file]")

# start the timer
start = time.time()

# open the files with some error checking
try:
	inFile = open(sys.argv[1],"r")
except IOError:
	sys.exit("Cannot open log file!")

try:
	outFile = open(sys.argv[2],"w")
except IOError:
    sys.exit("Cannot open hits file!")

# build list of keywords
# I took my list out since the words are bad ones 
kw = [ "keywords", "here" ]
 
# loop through the list and print the lines to a file 
for line in inFile.xreadlines():
    for badword in kw:
        if line.find(badword) > -1:
            found = '%s %s' % (badword, line)
            #print found            # Print the result 
            outFile.write(found)   # Write the result

# close the files
inFile.close() 
outFile.close() 
 
# let me know when it's done
#puts "Finished processing file..."
print "Python took:%6.2f seconds" % (time.time()-start)

RUBY SCRIPT:

# populate the array
# keywords deleted to protect innocent eyes
kw = [ "keywords", "here" ]

# Ruby provides micro-seconds in Time object
Time.now.usec
start = Time.now

# open the files
inFile = File.open(ARGV[0], "r")
outFile = File.new(ARGV[1], "w+")

# search for a word and print the entire line
inFile.each_line { |line|
    for word in kw
	if line.include?(word)
	    #print line
            outFile.write "#{word} #{line}"
	end
    end
}

# close the files
inFile.close
outFile.close
elapsed = Time.now - stat

# visual clue script is done
#puts "Finished processing file..."
puts "Ruby took #{elapsed} seconds."


Both were started from scratch one time.

Ruby: 83.938 seconds
Python: 18.52 seconds

I do NOT know if Python's xreadline is doing the same as Ruby's
each_line in my script. If my each_line is not equivalent...please let
me know so I can run it again.

Bob