On Tue, Apr 27, 2010 at 1:59 PM, erik quanstrom <quans...@quanstro.net> wrote: > On Tue Apr 27 13:58:39 EDT 2010, slawmas...@gmail.com wrote: >> On Tue, Apr 27, 2010 at 1:54 PM, <j...@9srv.net> wrote: >> > Nice work, but couldn't you just bind /n/sources/plan9/sys/src >> > to the hg repo and push from there? >> > >> >> That would almost certainly be slower than grabbing the ISO via HTTP >> and getting the file tree locally. > > it would be interesting to try. if hg can push in parallel, it > could be competitive. fetching the iso, decompressing the iso, > etc are not free. and you can't push anything until after step > 2. talk about killer latency. > > - erik > >
My experiments have shown that copying a large file via HTTP is significantly faster than copying the same file via 9P. I haven't tested it, but I would wager that opening, reading, and closing hundreds of small files via 9P would also be much slower than grabbing the same files in a compressed archive via HTTP and uncompressing. Also, I'm not sure of the exact mechanics of hg, but I'm guessing that a commit + push would involve at least two traversals of the tree, which is not fun when you're hitting sources for every file op. John
