Thanks Elliot. Yeah, I suspected this wasn't 100% reproducible or else it'd have been reported/addressed by now. As you say, perhaps there's some idiosyncrasy with my system/setup. If there's a wave of reporting a similar issue then perhaps it's worth a look (e.g. perhaps a recent MS update triggered this). Anyway, unless/until that happens, I'll simply stick with V3.6.
Thanks for taking a look. -g- -----Original Message----- From: Eliot Moss <m...@cs.umass.edu> Sent: Monday, June 6, 2022 8:34 AM To: Gordon Grimes <gordon.gri...@nortonlifelock.com>; cygwin@cygwin.com Subject: [EXT] Re: possible grep V3.7 issue On 6/6/2022 8:26 AM, Gordon Grimes via Cygwin wrote: > Hi, > > I wanted to let you know about a possible issue I found in grep v3.7. I run > Cygwin and recently downgraded ‘grep’ to v3.6 from v3.7 to address a > performance issue (shown below). > I just thought you’d want to know (V3.6 is working well, so I’m in a > good place 😊 ) Enjoy, > -g- > > > % time echo hi | grep h > hi > > real 0m7.442s > user 0m0.030s > sys 0m6.576s > > % /usr/bin/grep --version > grep (GNU grep) 3.7 > Packaged by Cygwin (3.7-2) > Copyright (C) 2021 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgnu.org%2Flicenses%2Fgpl.html&data=05%7C01%7CGordon.Grimes%40nortonlifelock.com%7C640f66e158104f7486ea08da47b8e328%7C94986b1d466f4fc0ab4b5c725603deab%7C0%7C0%7C637901156666044572%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=FujGNPbnS6TMO8I1RT%2FuczWHhImX6KnEUnLWC5EYYTE%3D&reserved=0. > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. > > Written by Mike Haertel and others; see > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.sv.gnu.org%2Fcgit%2Fgrep.git%2Ftree%2FAUTHORS&data=05%7C01%7CGordon.Grimes%40nortonlifelock.com%7C640f66e158104f7486ea08da47b8e328%7C94986b1d466f4fc0ab4b5c725603deab%7C0%7C0%7C637901156666044572%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=yXCYAppkPpbDwkD1h2BPA%2B5PPE6QYLRvmVHxvUwxP34%3D&reserved=0. > > After the downgrade… > > % time echo hi | grep h > hi > > real 0m0.292s > user 0m0.015s > sys 0m0.124s I'm running 3.7-2 and get timing similar to what you give for 3.6: real 0m0.167s user 0m0.015s sys 0m0.061s Not sure what to say unless, if I downgraded, it would be an order of magnitude faster ... I wonder if maybe the new version triggers some anti-virus activity or something like that. Eliot Moss -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
