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From: Chris Roehrig <croehrig@house.org>
To: Ken Brown via Cygwin <cygwin@cygwin.com>
Subject: Re: cygrunsrv + sshd + rsync = 20 times too slow -- throttled?
Date: Tue, 31 Aug 2021 12:53:02 -0700	[thread overview]
Message-ID: <3DB951FB-FC3F-4EE8-B5E0-6137B305B873@house.org> (raw)
In-Reply-To: <58bdc0c3-d843-343f-d88e-c8a44ec33a15@cornell.edu>

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
> 
> -- 
> Problem reports:      https://cygwin.com/problems.html
> FAQ:                  https://cygwin.com/faq/
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  reply	other threads:[~2021-08-31 19:53 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-24 19:49 Chris Roehrig
2021-08-24 23:43 ` Mark Geisert
2021-08-25  0:35   ` Chris Roehrig
2021-08-25  2:12     ` Chris Roehrig
2021-08-25  2:02 ` NightStrike
2021-08-25  3:20   ` Mark Geisert
2021-08-25 17:24     ` Chris Roehrig
2021-08-25 11:18 ` Takashi Yano
2021-08-25 17:31   ` Chris Roehrig
2021-08-25 17:52   ` Ken Brown
2021-08-25 18:18     ` Chris Roehrig
2021-08-25 18:51       ` Chris Roehrig
2021-08-26 15:44       ` Ken Brown
2021-08-25 20:33     ` Mario Emmenlauer
2021-08-26 15:47       ` Ken Brown
2021-08-25 21:29     ` Takashi Yano
2021-08-26 15:56       ` Ken Brown
2021-08-26 22:18         ` Ken Brown
2021-08-27 11:24           ` Takashi Yano
2021-08-27 16:00             ` Ken Brown
2021-08-27 17:21               ` Takashi Yano
2021-08-28  2:00                 ` Takashi Yano
2021-08-28  3:03                   ` Takashi Yano
2021-08-28  8:43                 ` Corinna Vinschen
2021-08-28  9:41                   ` Takashi Yano
2021-08-28 11:58                     ` Corinna Vinschen
2021-08-28 15:43                       ` Takashi Yano
2021-08-28 20:55                         ` Ken Brown
2021-08-29  8:41                           ` Takashi Yano
2021-08-29 22:42                             ` Ken Brown
2021-08-29 10:27                         ` Corinna Vinschen
2021-08-29  9:07                     ` Takashi Yano
2021-08-29 15:57                       ` Ken Brown
2021-08-29 19:24                         ` Chris Roehrig
2021-08-29 22:24                           ` Ken Brown
2021-08-30 23:58                             ` Chris Roehrig
2021-08-31 19:05                               ` Ken Brown
2021-08-31 19:53                                 ` Chris Roehrig [this message]
2021-08-31 20:23                                   ` Chris Roehrig
2021-08-31 21:29                                     ` Brian Inglis
2021-09-01 21:11                                     ` Chris Roehrig
2021-09-02 15:25                                       ` Ken Brown
2021-09-02 19:03                                         ` Chris Roehrig
2021-09-03 17:26                                           ` Ken Brown
2021-09-03 19:55                                           ` Corinna Vinschen
2021-09-03 20:59                                             ` Chris Roehrig
2021-09-04  8:32                                               ` Achim Gratz
2021-09-04 16:45                                               ` Brian Inglis
2021-09-05  8:18                                                 ` Achim Gratz
2021-09-05 15:11                                                   ` Brian Inglis
2021-09-06 10:42                                                     ` Achim Gratz
2021-09-04 22:37                                             ` mmap failure [was: cygrunsrv + sshd + rsync = 20 times too slow -- throttled?] Ken Brown
2021-09-04 22:54                                               ` Ken Brown
2021-09-04 22:58                                                 ` Ken Brown
2021-09-05  0:04                                                   ` Ken Brown
2021-09-05 13:24                                                     ` Ken Brown
2021-09-06 15:32                                                       ` Corinna Vinschen
2021-09-06 17:12                                                         ` Ken Brown
2021-09-06 17:38                                                           ` Ken Brown
2021-09-06 17:43                                                             ` Eliot Moss
2021-09-06 17:59                                                             ` Corinna Vinschen
2021-09-06 18:07                                                               ` Corinna Vinschen
2021-09-06 18:40                                                                 ` Ken Brown
2021-09-06 20:52                                                                   ` Peter Dons Tychsen
2021-09-06 20:54                                                                   ` Peter Dons Tychsen
2021-09-06 21:24                                                                     ` Ken Brown
2021-09-06 21:31                                                                       ` Ken Brown
2021-09-07  3:34                                                                       ` Brian Inglis
2021-09-07 16:28                                                                         ` Ken Brown
2021-09-07 21:52                                                                           ` Lavrentiev, Anton (NIH/NLM/NCBI) [C]
2021-09-07 22:44                                                                             ` Ken Brown
2021-09-08  6:14                                                                               ` Sam Edge
2021-09-08  8:18                                                                         ` Corinna Vinschen
2021-09-07 21:41                                                                       ` Peter Dons Tychsen
2021-09-04 23:18                                               ` Brian Inglis
2021-08-29 19:37                         ` cygrunsrv + sshd + rsync = 20 times too slow -- throttled? Takashi Yano
2021-08-29 21:09                           ` Ken Brown
2021-08-29 21:04                       ` Ken Brown
2021-08-30  0:13                         ` Takashi Yano
2021-08-30  0:22                           ` Takashi Yano
2021-08-30  2:15                             ` Ken Brown
2021-08-30  8:02                               ` Takashi Yano
2021-08-28 15:17                   ` Ken Brown
2021-09-16 22:00 ` Keith Christian
2021-09-16 22:48   ` Ken Brown
2021-09-16 22:58     ` Keith Christian

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