The Git server is on the local area network. I cloned it several times before, and the speed was 1.*MiB/s. I thought it was quite fast. Today, I heard from my colleagues that it should be around 10MiB/s, and I was not reconciled.
Google, find this
http://darrell.mozingo.net/2011/09/29/painfully-slow-clone-speeds-with-msysgit-gitextensions/
So I went to Cygwin/bin to find it and found it
- cygcrypto-0.9.8.dll
- cyggcc_s-1.dll
- cygssp-0.dll
- cygwin1.dll
- cygz.dll
But the later ssh series can't be found, even if the ssh module is reinstalled.
Continue to google openssh and find the real master
http://www.mls-software.com/opensshd.html
Download the latest 6.4 exe, install it, go to the directory to find ssh*.exe, copy it to Git/bin to cover it, rerun Git Bash, and the speed soars to 10.21MiB/s.