Backport #2741: gets with large file is slow in windoze

• Status: Closed
• Assignee: -

[rogerdpack (Roger Pack)]

=begin
Reposting from a different bug report...

10 MB

n = 100 * 1000 * 1000
puts "writing"
File.open("foo", 'wb'){|f| f.write(" " * n) }
puts "reading"
File.open("foo", 'rb') do |io|
io.gets
end

writing the file takes 1s, reading it takes 2000s, as it reads (in windows) in only in 4K bytes, so it is constantly resizing the string and recopying it. In Linux it has the same problem, but reads in 64K bytes, so the problem is much less.
=end

[jeremyevans0 (Jeremy Evans)]

• Tracker changed from Bug to Backport
• Project changed from 2 to 5
• Description updated (diff)
• Status changed from Open to Closed
• ruby -v deleted (ruby 1.8.8dev (2010-02-11 revision 26645) [i386-mingw32])