Re: Best way to merge two repos with same content, differenthistory

On Fri, Jun 05, 2009 at 02:06:25PM -0500, Kelly F. Hickel wrote:

Thanks for your data.

For comparison, our conversion box is also 8-way, but only 16GiB RAM.

I'm surprised at how long pass1 is for you, especially since you've got a lot less CVS Files and CVS Revisions than the Gentoo repo (I do deduce that your individual revisions are larger, averaging at 15KiB vs. our 711 bytes).

I think there's something odd in the total CVS branches/tags count however, as the counts there imply an average of 67 branches and 173 tags per CVS revision. You might want to dig into that part manually and see about it (not sure of your Python skills). That would probably cut down both your pass1 and pass4 times significantly.

Hopefully mhagger will get the external blob stuff committed soon, I was working on validating it's results.

In doing so discovered a testcase where RCSRevisionReader and CVSRevisionReader gave different output themselves, the latter (which is documented as more accurate otherwise) missing the contents of an entire file. It's on the cvs2svn-dev mailing list now. Tracing that first, thereafter comparing it to the new Git side.

Did those extreme depth/window values actually help size much? The Gentoo ones actually didn't improve significantly over depth=window=50.