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

[Takashi Yano]

On Tue, 14 Sep 2021 18:56:23 +0900
Takashi Yano wrote:
> On Tue, 14 Sep 2021 11:03:39 +0200
> Corinna Vinschen wrote:
> > I don't quite follow the argument.  Blocking pipes are using
> > asynchronous IO, so they are in fact not blocking calls on the
> > OS level.  After calling NtWriteFile, the blocking variation
> > will go into the subsequent
> > 
> >   waitret = cygwait (evt, INFINITE, cw_cancel | cw_sig);
> > 
> > So, wouldn't you get the same effect by keeping the pipe in
> > FILE_PIPE_QUEUE_OPERATION mode and just add a timeout to the above
> > cygwait call and handle select_sem in a not yet existing WAIT_TIMEOUT
> > conditional?
> 
> Sounds reasonable. I revised the patches. Do you mean something like
> patch attached?

Revised a bit.

-- 
Takashi Yano <takashi.yano@nifty.ne.jp>
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