Re: irc usage..

Martin Langhoff wrote:

On 6/5/06, Alec Warner [off-list ref] wrote:

quoted

Ok the box this was running on had issues, so I switched to using
pearl.amd64.dev.gentoo.org, a dual core amd64 X2 4600+ with 4 gigs of
ram and plenty of disk.  The "problem" now is just converstion time...30
hours and I'm into 2004-09-17...but it's been in 2004 all day, seems
like most of the commits are in the last three years.  Are there
architectural issues with doing this in parallel?

I don't think you can do this in parallel. What I would do is remove
the -a from the git-repack invocation. It does hurt import times quite
a bit -- just do a git-repack -a -d when it's done.

Only repack at the end then? disk space isn't an issue here so I'll give 
that a shot.

And... having said that, there is still a memory leak somehow,
somewhere. It's been evading me for 2 weeks now, so I feel an idiot
now. Not too bad in general, but it shows clearly in the gentoo and
mozilla imports.

30565 antarus   17   0  470m 456m 1640 S   14 11.6 234:23.38
git-cvsimport
30566 antarus   16   0 6753m 147m  752 S    7  3.7 120:27.06 cvs

I'm on cvs-1.11.12 and the git version of git

You are forced to do it in a sequence because cvsps only tells you
about the files added/removed/changed in a commit -- you need the
ancestor to have a view of what the whole tree looked like. The only
room for parallelism I see is to fork off new processes to work on
branches in parallel.

Not helpful in the Gentoo case, since we only have one branch; minus an 
accident when a dev branched gentoo-x86 a while back ;)

I'll keep chugging on this one; it won't be the final import as I 
haven't used the complete Authors file, so I will try the repacking 
optimization next time I do an import.

-Alec Warner