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From: | "Dennis Hagarty (dehagart)" <dehagart AT cisco DOT com> |
To: | "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com> |
Subject: | RE: Very slow Cygwin startup on Windows 7 |
Date: | Tue, 24 Feb 2015 14:46:47 +0000 |
Message-ID: | <3FEEC3A37A0B0A48AA326075128C32EE4EE2B31C@xmb-rcd-x01.cisco.com> |
References: | <3FEEC3A37A0B0A48AA326075128C32EE4DC9F137 AT xmb-rcd-x01 DOT cisco DOT com> <869208266 DOT 20150210030528 AT yandex DOT ru> <3FEEC3A37A0B0A48AA326075128C32EE4EE263B8 AT xmb-rcd-x01 DOT cisco DOT com> <20150218111515 DOT GL8493 AT calimero DOT vinschen DOT de> <3FEEC3A37A0B0A48AA326075128C32EE4EE26DE4 AT xmb-rcd-x01 DOT cisco DOT com> <20150218125429 DOT GN8493 AT calimero DOT vinschen DOT de> <3FEEC3A37A0B0A48AA326075128C32EE4EE275A7 AT xmb-rcd-x01 DOT cisco DOT com> <20150219103235 DOT GD26084 AT calimero DOT vinschen DOT de> <3FEEC3A37A0B0A48AA326075128C32EE4EE27AEC AT xmb-rcd-x01 DOT cisco DOT com> <20150220162024 DOT GZ26084 AT calimero DOT vinschen DOT de> <20150223211530 DOT GA23639 AT calimero DOT vinschen DOT de> |
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Hi, With Roger's very patient help, I was able to get ADInsight capturing information. I did a run with the original dll under 32 bit Cygwin running a 32 bit program (echo). Output and all possible reports (in html) from the tool are here: https://dl.dropboxusercontent.com/u/33069639/ADInsight.tar.gz This 32 bit version is the original slower version (takes a few mins to open a window): CYGWIN_NT-6.1-WOW DEHAGART-WS02 1.7.34(0.285/5/3) 2015-02-04 12:12 i686 Cygwin So I downloaded the snapshot DLL for 32 bits and did it again: CYGWIN_NT-6.1-WOW DEHAGART-WS02 1.7.35s(0.286/5/3) 20150223 21:02:38 i686 Cygwin But this time I wasn't able to get any output on the ADInsight (scratches head) But the task runs within a second rather than the many minutes from the original version. Thanks and Regards Dennis -----Original Message----- Hi Corinna, Using x86_64/cygwin1-20150223.dll.xz?? ~ uname -a CYGWIN_NT-6.1 DEHAGART-WS02 1.7.35s(0.286/5/3) 20150223 21:02:38 x86_64 Cygwin ~ cat /etc/nsswitch.conf passwd: db group: db First manual start of bash shell *seemed* to take slightly longer than before and slightly longer than files db setting. But anyway, the timed results show this: cmd /v:on /c "echo !TIME! & C:\cygwin64\bin\mintty.exe /bin/echo "test" & echo !TIME!" C:\Users\dehagart>cmd /v:on /c "echo !TIME! & C:\cygwin64\bin\mintty.exe /bin/echo "test" & echo !TIME!" 14:22:01.74 14:22:02.56 00:00.82 C:\Users\dehagart>cmd /v:on /c "echo !TIME! & C:\cygwin64\bin\mintty.exe /bin/echo "test" & echo !TIME!" 14:22:07.10 14:22:07.27 00:00.17 C:\Users\dehagart>cmd /v:on /c "echo !TIME! & C:\cygwin64\bin\mintty.exe /bin/echo "test" & echo !TIME!" 14:22:08.99 14:22:09.16 00:00.17 C:\Users\dehagart>cmd /v:on /c "echo !TIME! & C:\cygwin64\bin\mintty.exe /bin/echo "test" & echo !TIME!" 14:22:10.72 14:22:10.89 00:00.17 I.e. significantly better. Regards Dennis -----Original Message----- Hi Dennis, On Feb 20 17:20, Corinna Vinschen wrote: > On Feb 19 19:04, Dennis Hagarty (dehagart) wrote: > > >It would be pretty helpful to get an idea what's so slow in your case. > > >Either you get ADInsight working, or... is it ok if I send you a link > > >to a debug-augmented DLL via PM? > > > > Sure. > > Thanks for helping debugging, Dennis. I have another one for testing. I rewrote the function fetching all the group information for the groups in your user token, the one which is mainly responsible for the 1.4 secs startup time. In theory the performance improvement should be pretty noticable, even with /etc/nsswitch.conf only using the "db" setting for groups. In a bigger environment with a user token of 150 groups, the time this function took was reduced from ~300ms to ~50ms so I have high hopes. Can you test this again with the Cygwin DLL from the latest developer snaphshot at https://cygwin.com/snapshots/ please? Thanks, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat
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