Re: What's cooking in git.git (Apr 2016, #07; Mon, 25)

Hi Junio,

On Mon, 25 Apr 2016, Junio C Hamano wrote:

* js/win32-mmap (2016-04-22) 3 commits
  (merged to 'next' on 2016-04-22 at cd39c60)
 + mmap(win32): avoid expensive fstat() call
 + mmap(win32): avoid copy-on-write when it is unnecessary
 + win32mmap: set errno appropriately

 mmap emulation on Windows has been optimized.

Please note that it is not purely an optimization. It is also a bug fix in
case of a pretty full disk: on Windows, mmap() is backed by the page file
if it is in copy-on-write mode, and that can fail when the free space on
the drive that has the page file drops below a certain threshold.

Thanks,
Dscho