On Thu, Nov 05, 2009 at 07:11:02PM -0800, Linda Walsh wrote: >aputerguy wrote: >> Running grep on a 20MB file with ~100,000 matches takes an incredible almost >> 8 minutes under Cygwin 1.7 while taking just 0.2 seconds under Cygwin 1.5 >> (on a 2nd machine). > >I've seen nasty behavior with grep that isnt' cygwin specific. Try >"pcregrep" and see if you have the same issue. > >I found it to be about ~100 times faster under _some_ searches though >2-3x is more typical. The gnu re-parser isn't real efficient under >some circumstances. > >If you find a big difference, you might also want to report it to the >bug-g...@gnu.org mailing list, but last time I did, they told me >"that's the way it is" due to some posix conformance thing...
The fact that it behaves differently between Cygwin 1.5 and 1.7 would suggest that this isn't a grep problem. That's why I asked for a test case. cgf -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
