RE: [ANNOUNCE] Git v2.5.0-rc0

From: steve.norman@thomsonreuters.com <steve.norman@thomsonreuters.com>
Date: Jun 26, 2015, 09:36 UTC
Message-ID: <7FAE15F0A93C0144AD8B5FBD584E1C55197CF80F@C111KJZHMBX55.ERF.thomson.com>
In-Reply-To: <xmqqr3ozy1zt.fsf@gitster.dls.corp.google.com>

Jeff / Duy,

Show 10 quoted lines

> Fixes since v2.4
>  * Access to objects in repositories that borrow from another one on a
>    slow NFS server unnecessarily got more expensive due to recent code
>    becoming more cautious in a naive way not to lose objects to pruning.
>    (merge ee1c6c3 jk/prune-mtime later to maint).
> 
>  * "Have we lost a race with competing repack?" check was too
>    expensive, especially while receiving a huge object transfer
>    that runs index-pack (e.g. "clone" or "fetch").
>    (merge 0eeb077 jk/index-pack-reduce-recheck later to maint).

I was reading through the 2.5 release notes and spotted the above two entries and I think they are probably fixes related to the NFS slowness I reported last month.

Did some tests this morning and things are much improved:

Version 2.4.5
  - Local clone of https://github.com/git/git - 8s
  - Clone to NFS - 1m 3s

Version 2.5.0.rc0
  - Local - 7s
  - NFS - 13s

Thanks for the effort in addressing this and sorry I missed the patch to check it out earlier.

Steve