On Fri, Feb 07, 2014 at 09:48:52PM +0400, Kirill Smelkov wrote:
> instead of allocating it all the time for every subtree in
> __diff_tree_sha1, let's allocate it once in diff_tree_sha1, and then all
> callee just use it in stacking style, without memory allocations.
>
> This should be faster, and for me this change gives the following
> slight speedups for `git log --raw --no-abbrev --no-renames`
>
> navy.git linux.git v3.10..v3.11
>
> before 0.547s 1.791s
> after 0.541s 1.777s
> speedup 1.1% 0.8%
The timings above was done with
`git log --raw --no-abbrev --no-renames --format='%H'`
^^^^^^^^^^^^^
Please change them to correct timings:
navy.git linux.git v3.10..v3.11
before 0.618s 1.903s
after 0.611s 1.889s
speedup 1.1% 0.7%
Thanks,
Kirill
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