Re: Git is not scalable with too many refs/*

On 09/25/2011 10:43 PM, Martin Fick wrote:

A coworker of mine pointed out to me that a simple

  git checkout 

can also take rather long periods of time > 3 mins when run 
on a repo with ~100K refs.  

While this is not massive like the other problem I reported, 
it still seems like it is more than one would expect.  So, I 
tried an older version of git, and to my surprise/delight, 
it was much faster (.2s).  So, I bisected this issue also, 
and it seems that the "offending" commit is 
680955702990c1d4bfb3c6feed6ae9c6cb5c3c07:

I'm still working on changes to store references hierarchically in the
cache and read them lazily.  I hope that it will help some scaling
problems with large number of refs.

Unfortunately I keep getting tangled up in side issues, so it is taking
a lot longer than expected.  But there's still hope.

Michael

-- 
Michael Haggerty
mhagger@alum.mit.edu
http://softwareswirl.blogspot.com/