On 2023-06-26 00:15, Cristi Anichitei via Cygwin wrote:
This has been initially reported as a Git for Windows issue:
https://github.com/git-for-windows/git/issues/4459
But it has been tracked down to originate in the Cygwin project (see
https://github.com/git-for-windows/git/issues/4459#issuecomment-1580526636
and maybe
https://github.com/git-for-windows/git/issues/4459#issuecomment-1602566700).
Using 3.4.6.1 (from
http://mirrors.kernel.org/sourceware/cygwin/x86_64/release/cygwin/cygwin-3.4.6-1-src.tar.xz),
running any program from /usr/bin takes at least 20 seconds, for example
$ .\ldd.exe --version
ldd (cygwin) 3.4.6
Print shared library dependencies
Copyright (C) 2009 - 2023 Chris Faylor
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ Measure-Command { .\ldd.exe --help }
Days : 0
Hours : 0
Minutes : 0
Seconds : 22
Milliseconds : 552
Ticks : 225529747
TotalDays : 0.000261029799768519
TotalHours : 0.00626471519444444
TotalMinutes : 0.375882911666667
TotalSeconds : 22.5529747
TotalMilliseconds : 22552.9747
I have also tried this with 3.4.7 - same issue.
Using 3.1.7 there is no slow down. I haven't tried any versions between
3.1.7 and 3.4.7 yet, but I can do that.
I'm running Windows 10 21H2 (19044.3086).
https://cygwin.com/faq.html#faq.using.startup-slow
Probably slow AD server or network connection, or long group membership lists,
that can be ameliorated by running cygserver service at system startup, so only
the first Cygwin process takes SAM/AD access hits, which are cached thereafter,
and shared with all Cygwin processes on the system.
Otherwise the first Cygwin process in each Cygwin process tree takes the hits,
so if you are not running under Cygwin mintty terminal and/or Cygwin shell,
every Cygwin process run from a Windows shell has to load all the SAM/AD info
required to run the Cygwin process.
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
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