On Wednesday 15 November 2006 09:31, Jim Meyering wrote: > Jesse Keating <jkeating@xxxxxxxxxx> wrote: > > I've finally been able to convert all extras package modules/branches > > (from FC3 and up) to git, much in the same layout as dist-hg (each > > release "branch" being its own standalone repo (complete with inherited > > history from devel/ branch at split time)) > > > > I haven't yet started modifying Makefiles and plague to handle getting a > > checkout of a package from a tag and building it. That will probably > > come next week. > > > > Some interesting comparisons: > > > > Time to convert from CVS to GIT: > > Did you use git-cvsimport? > One invocation to convert an entire tree containing lots of > individual package trees into a single git repository? > > > real 556m51.452s > > user 32m36.370s > > sys 68m29.753s > > > > Time to convert from CVS to HG: > > What tool did you use here? > The only tool I've used is tailor, and back when I last used it, > it was about 15x slower than git-cvsimport. > > > real 155m0.948s > > user 84m18.080s > > sys 41m5.246s > > > > Size of dist-git (with full repack -a -d): > > 3.9G /srv/git/extras > > > > Size of dist-hg (no extra processing): > > 1.8G /srv/hg/extras > > > > None of the above are really deciding factors in what to use, just some > > interesting anecdotal observations. > > What version of git tools are you using? I ask because newer versions > typically produce smaller repositories. And with newer versions of > git-cvsimport, there is no need for a manual repack. In conversions I've > done, the need for a manual repack went away months ago. It may well be > that the incremental repacking now done by git-cvsimport ends up producing > a much smaller repo than the old "repack-everything-at-the-end" technique. > FYI, rawhide has git-1.4.2.4, with is only a few weeks old. > > Also, I can attest that the run times using the newer git-cvsimport can be > far faster, with the incremental repack. Otherwise, git would create so > many files that you'd run into terrible file system performance problems. > This depends on file system type. > > However, I agree that the initial conversion speed isn't a big deal, > since you do it only once (or at least a relatively small number of > times :-) after all. > See http://fedoraproject.org/wiki/Infrastructure/VersionControl/dist-hg and http://fedoraproject.org/wiki/Infrastructure/VersionControl/dist-git for info. git-core-1.4.2.4-1.fc6 -- Jesse Keating Release Engineer: Fedora
Attachment:
pgpSMnT2dUf8I.pgp
Description: PGP signature
-- Fedora-maintainers mailing list Fedora-maintainers@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-maintainers
-- Fedora-maintainers-readonly mailing list Fedora-maintainers-readonly@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-maintainers-readonly
