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From:	Cary Lewis <cary DOT lewis AT gmail DOT com>
Date:	Sat, 30 Apr 2022 10:06:48 -0400
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Subject:	Slow cygwin executable start up
To:	cygwin AT cygwin DOT com
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I am experiencing a problem with Cygwin on my Dell 7590.

There is a multi-second delay when starting a cygwin program from a mintty
window, but only the first time that a program is run.

E.g. if  run openssl version, then sometimes there is a delay before
anything is outputted.

If I run the command again, there is no delay.

I ran a test with strace, and I believe the delay occurs during the initial
loading of the cygwin dlls:

--- Process 6232 created
--- Process 6232 loaded C:\Windows\System32\ntdll.dll at 00007ffe3b4c0000
--- Process 6232 loaded C:\Windows\System32\kernel32.dll at 00007ffe3a660000
--- Process 6232 loaded C:\Windows\System32\KernelBase.dll at
00007ffe38c60000
--- Process 6232 thread 24052 created
--- Process 6232 thread 28400 created
--- Process 6232 thread 2788 created
--- Process 6232 loaded C:\cygwin64\bin\cygssl-1.1.dll at 00000003f7a60000
--- Process 6232 loaded C:\cygwin64\bin\cygcrypto-1.1.dll at
00000003fa540000
--- Process 6232 loaded C:\cygwin64\bin\cygwin1.dll at 0000000180040000
--- Process 6232 loaded C:\cygwin64\bin\cygz.dll at 00000003f7320000
--- Process 6232 loaded C:\cygwin64\bin\cygwin1.dll at 0000000000da0000

Can anyone suggest why this is happening?

The version of cygwin is:

$ uname -r
3.2.0(0.340/5/3)

By the way, I don't see this on my older PC, it's version of cygwin is:
3.1.7(0.340/5/3)

I don't really want to upgrade my older PC to the latest cygwin to test if
the 3.2 version is the culprit or not.

I also upgraded from windows 10 to windows 11 on the PC experiencing the
slow start issue, and that didn't have any effect on the problem.

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