[PATCH 0/2] Speedup fetch with large numbers of refs

These two commits make fetch quite a bit faster when dealing with
large numbers of refs.  Unfortunately I've lost the exact figures, but
my silly test respository (50000 tags, 1 branch) went from something
like 30s for a "fetch --tags" that did nothing, to about 5.

Julian Phillips (2):
  remote: Make ref_remove_duplicates faster for large numbers of refs
  fetch: Speed up fetch of large numbers of refs

 builtin-fetch.c |   17 ++++++++++++++---
 remote.c        |   39 +++++++++++++++++++++------------------
 2 files changed, 35 insertions(+), 21 deletions(-)