Thanks, I did some more tests:
scp also shows no improvement with topic/pipe. I tried running
cygsshd with CYGWIN=pipe_byte as well as empty (in the registry
HKLM/SYSTEM/CurrentControlSet/Services/cygsshd/Parameters/Environment/), using
net stop cygsshd + net start cygsshd to restart it. Not sure if that CYGWIN
only applies to cygsshd or to all cygwin tasks.
I get the procps error just running 'procps' command with no args from mintty
(/usr/bin/procps). Looking at the procps-ng source (procps-ng 3.3.17-1 is
what setup_x86_64 reports as my installed package), it appears to be a mmap()
failure.
I'm wondering if I built/installed cygwin1.dll correctly because I don't get
the procps error using the latest stock cygwin1.dll as installed by
setup_x86_64.
-- Chris
On Tue Aug 31 2021, at 12:05 PM, Ken Brown via Cygwin <cygwin@cygwin.com> wrote:
> On 8/30/2021 7:58 PM, Chris Roehrig wrote:
>> I got it to build and tried out the topic/pipe branch (checked out on Monday
>> around 4:30pm PDT):
>> 1. I didn't see any improvement in my sshd+rsync time, still 3-4 MB/sec.
>> 2. I get the following error from procps: procps:ps/output.c:2195: please
>> report this bug
>> (I also get this using the main branch build).
>> I first updated my cygwin normally using setup-x86_64.exe, then built and
>> copied only the cygwin1.dll into /bin from the install/bin directory
>> (quitting all cygwin tasks first).
>
> Thanks for testing.
>
> We're still working on this. (The discussion has moved to the
> cygwin-developers mailing list.) I'll let you know when it's stable, and
> maybe you can try again.
>
> As to the procps error, can you give details so that someone can try to
> reproduce it and debug it?
>
> Ken
>
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