cygwin:

I have a computer:

2022-05-17 18:46:12 dpchrist@dht4s3r1 ~/src/perl/Dpchrist-Perl
$ systeminfo | egrep '^OS (Name|Version)' ; uname -a ; cygcheck -c cygwin
OS Name:                   Microsoft Windows 7 Professional
OS Version:                6.1.7601 Service Pack 1 Build 7601
CYGWIN_NT-6.1 dht4s3r1 3.3.5(0.341/5/3) 2022-05-13 12:27 x86_64 Cygwin
Cygwin Package Information
Package              Version        Status
cygwin               3.3.5-1        OK


I am working on a Perl module that runs on various Unix-like platforms. When I 'make test' on similar computers:

FreeBSD 12.3-RELEASE             28 wallclock secs
Debian GNU/Linux 11.3            31 wallclock secs
macOS 11.6.2                     36 wallclock secs
Windows 7 / Cygwin 3.3.5-1      509 wallclock secs


A few months ago, I seem to recall that Cygwin was about 4 times slower. Now it is over 14 times slower.


Is this expected?  If not, how do I find the bottleneck?


TIA,

David

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