Just a note - this won't help casual users, but for the download is fast if you use "bzr init-repo" on a parent directory and have populated the shared object pool already:
sec ~/src/fenics/src 0$ bzr info .. Shared repository with trees (format: 2a) Location: shared repository: /home/jobh/src/fenics sec ~/src/fenics/src 0$ time bzr branch lp:dolfin Branched 7015 revisions. real 0m9.045s user 0m2.300s sys 0m0.328s -j. On 22 October 2012 18:30, Anders Logg <[email protected]> wrote: > On Mon, Oct 22, 2012 at 12:52:42PM +0200, Joachim Berdal Haga wrote: >> Perhaps include .bzr in the tarball? > > I think the advantage will disappear then it would increase the size > of the tarball by a factor 10. > >> On 22 October 2012 12:49, Harish Narayanan <[email protected]> wrote: >> > I see, and agree >> > >> > Then, apart from timing, I am only hesitant for one more reason: I >> > occasionally maintain local changes to the different source trees for >> > sillyness that is specific to my machine. Using bzr allows me to not >> > blow them away on upgrade, but refetching tarballs will do so. > > Perhaps we could add another keyword in addition to "skip" which would > only skip the download, not the build? > > -- > Anders > > >> > On 10/22/12 9:47 AM, Anders Logg wrote: >> >> It's just the general feeling I get when experimenting with a new >> >> setup for my system (and therefore running Dorsal repeatedly for >> >> testing). External packages are built fast, but simple stuff like FFC >> >> takes a really long time just becase the bzr download is so slow. >> >> >> >> Here are some numbers for DOLFIN: >> >> >> >> $ time wget >> >> http://fenicsproject.org/pub/software/dolfin/dolfin-snapshot.tar.gz >> >> real 0m23.555s >> >> >> >> $ time bzr branch lp:dolfin >> >> real 5m7.337s >> >> >> >> $ cd dolfin; time bzr pull >> >> real 0m7.107s >> >> >> >> So when doing a fresh install, the difference is 23s for tarball vs >> >> 5min for bzr. >> >> >> >> And for updated install, the difference is 23s for tarball vs 7s for >> >> bzr, in the best case (longer for bzr if something actually changed). >> >> >> >> The extra 16s for tarball update is not very noticeable, but the extra >> >> 5 min for fresh install with bzr is very noticeable. >> >> >> >> >> >> >> >> On Mon, Oct 22, 2012 at 09:21:57AM +0200, Harish Narayanan wrote: >> >>> Hmm. I am not sure. I guess that depends on how often one updates their >> >>> sources for unstable builds on dorsal. >> >>> >> >>> Harish >> >>> >> >>> On 10/22/12 9:20 AM, Anders Logg wrote: >> >>>> Yes, but my assertion is that cost is smaller than needing to branch >> >>>> the entire source tree. >> >>>> >> >>>>> I mean the user pulling it via dorsal from fpo. They then have to get >> >>>>> the entire tarball each time, right? (As opposed to tiny deltas via >> >>>>> bzr). >> >>>>> >> >>>>> Harish >> >>>>> >> >>>>> >> >>>>> On 10/22/12 9:14 AM, Anders Logg wrote: >> >>>>>> How do you mean? The snapshot would be updated every 5 min by a >> >>>>>> cronjob on fenicsproject.org. >> >>>>>> >> >>>>>>> And how would one update the snapshot, which I am assuming is a >> >>>>>>> tarball >> >>>>>>> created by bzr archive (or whatever the export command is)? >> >>>>>>> >> >>>>>>> Harish >> >>>>>>> >> >>>>>>> On 10/22/12 9:09 AM, Anders Logg wrote: >> >>>>>>>> Would it be a good idea to store snapshots of the FEniCS packages on >> >>>>>>>> the server for faster installation with Dorsal? The bzr cloning >> >>>>>>>> takes >> >>>>>>>> forever. We could have a cronjob running on the server for pulling >> >>>>>>>> and >> >>>>>>>> updating the snapshots every say 5 min. We are already pulling for >> >>>>>>>> the >> >>>>>>>> buildbots. >> >>>>>>>> >> >>>>>>> >> >>>>> >> >>> >> > >> > >> > _______________________________________________ >> > Mailing list: https://launchpad.net/~dorsal >> > Post to : [email protected] >> > Unsubscribe : https://launchpad.net/~dorsal >> > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~dorsal Post to : [email protected] Unsubscribe : https://launchpad.net/~dorsal More help : https://help.launchpad.net/ListHelp
