cygrunsrv + sshd + rsync = 20 times too slow -- throttled?

Mario Emmenlauer mario@emmenlauer.de
Wed Aug 25 20:33:26 GMT 2021


On 25.08.21 19:52, Ken Brown via Cygwin wrote:
> A couple years ago I had an idea for changing the pipe implementation to avoid overlapped I/O:
> 
>    https://cygwin.com/pipermail/cygwin-patches/2019q2/009393.html
>    https://cygwin.com/pipermail/cygwin-patches/2019q2/009423.html
> 
> I never followed up on it.  But if you think it might help with this problem, I could dust it off and try to finish it.

This sounds quite interesting! Do I assume correctly that these
changes may likely lead to a general improvement also in other
situations if the impact of the pipe is so big for this specific
case? Pipes are most likely used in quite a lot of scenarios?!

All the best,

     Mario Emmenlauer


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