From: Shawn O. Pearce Date: Fri, 05 Jan 2007 02:59:21 GMT Subject: Re: What's cooking in git.git (topics) Message-ID: <20070105025921.GA14042@spearce.org> In-Reply-To: <81b0412b0701041022h30cd4fcxd62dbf3ecb504ea9@mail.gmail.com> Alex Riesen wrote: > On 1/2/07, Junio C Hamano wrote: > >Here are the topics that have been cooking. Commits prefixed > >with '-' are only in 'pu' while commits prefixed with '+' are > >in 'next'. The topics list the commits in reverse chronological > >order. > > > >* sp/mmap (Sat Dec 30 22:13:43 2006 -0500) 25 commits > > Running this and the merge-recursive speedup I sent today locally. > sp/mmap needs relatively recent cygwin library (otherwise pread > is broken). No other ill effects noticed. Perfomance is bearable. The default on Cygwin is now NO_MMAP. I've disabled that default in my own Cygwin environment and continue to use mmap() rather than pread(), but I'm also running my sp/mmap change there. I haven't noticed a performance difference, but I also haven't tested for one. IOW if there is a difference its close enough to noise to not be visible to me as a user. -- Shawn.