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Message-ID: | <455BD867.8090702@cwilson.fastmail.fm> |
Date: | Wed, 15 Nov 2006 22:17:59 -0500 |
From: | Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm> |
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To: | cygwin AT cygwin DOT com |
Subject: | Re: Excessive thrashing when popen()ing after a large malloc() |
References: | <Pine DOT LNX DOT 4 DOT 58 DOT 0611141146430 DOT 9574 AT u53026a DOT matapp DOT unimib DOT it> <4559D376 DOT 9030707 AT byu DOT net> <loom DOT 20061115T171109-921 AT post DOT gmane DOT org> <20061115165133 DOT GA21115 AT trixie DOT casa DOT cgf DOT cx> |
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Christopher Faylor wrote: > Fully implementing posix_spawn is quite a bit of work although I did > tell Linus Torvalds that I'd look into implementing it in Cygwin > eventually (it would make git-on-cygwin faster). > > I have a patch in my sandbox which implements a more lightweight > approach for popen using cygwin internals. Don't you go thru this exercise about every two years? 1) fork/exec implementation in cygwin sux 2) attempt to rewrite cygwin internals to use symantics of spawn|vfork|some-other-clever-idea 3) it breaks a bunch of stuff 4) try to patch around the problems, repeat #3 4) revert back to original fork/exec implementation What's different this time? (Really, I'm not being snarky, and maybe I'm misremembering, but I'd hate to see precious developer time spent in #2 thru #4 if #5 will happen anyway -- if the past is any guide.) -- Chuck -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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