On Aug 19, 2013, at 12:59, Junio C Hamano wrote:
Performance, Internal Implementation, etc.
* On Cygwin, we used to use our own lstat(2) emulation that is
allegedly faster than the platform one in codepaths where some of
the information it returns did not matter, but it started to bite
us in a few codepaths where the trick it uses to cheat does show
breakages. This emulation has been removed and we use the native
lstat(2) emulation supplied by Cygwin now.
* The function attributes extensions are used to catch mistakes in
use of our own variadic functions that use NULL sentinel at the end
(i.e. like execl(3)) and format strings (i.e. like printf(3)).
* The code to allow configuration data to be read from in-tree blob
objects is in. This may help working in a bare repository and
submodule updates.
* Fetching between repositories with many refs employed O(n^2)
algorithm to match up the common objects, which has been corrected.
* The original way to specify remote repository using .git/branches/
used to have a nifty feature. The code to support the feature was
still in a function but the caller was changed not to call it 5
years ago, breaking that feature and leaving the supporting code
unreachable. The dead code has been removed.
* "git pack-refs" that races with new ref creation or deletion have
been susceptible to lossage of refs under right conditions, which
has been tightened up.
* We read loose and packed rerferences in two steps, but after
^^^^^^^^^^
deciding to read a loose ref but before actually opening it to read
s/rerferences/references/
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