D
Damjan Rems
This simple code shows everything:
time = [Time.new]
c = ''
'aaaa'.upto('zzzz') {|e| c << e}
3.times { c << c }
time << Time.new
File.open('out.file','w') { |f| f.write(c) }
time << Time.new
c = File.open('out.file','r') { |f| f.read }
time << Time.new
0.upto(time.size - 2) {|i| p "#{i} #{time[i+1]-time}" }
ruby 1.9.1p0 (2009-01-30 revision 21907) [i386-mswin32]
"0 0.537075"
"1 0.696244"
"2 40.188834"
ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]
"0 0.551"
"1 0.133"
"2 0.087"
That is about 5x slower write and 500x read operation. Times are the
same if I do:
f = File.new('out.file','r')
c = f.read
f.close
Tried on two machines. Vista SP1 and XP SP3. Same results.
by
TheR
P.S.
Where can I officaly report a Ruby bug?
time = [Time.new]
c = ''
'aaaa'.upto('zzzz') {|e| c << e}
3.times { c << c }
time << Time.new
File.open('out.file','w') { |f| f.write(c) }
time << Time.new
c = File.open('out.file','r') { |f| f.read }
time << Time.new
0.upto(time.size - 2) {|i| p "#{i} #{time[i+1]-time}" }
ruby 1.9.1p0 (2009-01-30 revision 21907) [i386-mswin32]
"0 0.537075"
"1 0.696244"
"2 40.188834"
ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]
"0 0.551"
"1 0.133"
"2 0.087"
That is about 5x slower write and 500x read operation. Times are the
same if I do:
f = File.new('out.file','r')
c = f.read
f.close
Tried on two machines. Vista SP1 and XP SP3. Same results.
by
TheR
P.S.
Where can I officaly report a Ruby bug?