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Date: Mon, 18 Dec 2023 08:16:41 +0100
Message-ID: <CAAvCNcDQa76Dp2p1xuT82NTZ9+U4i3+hVSvo7uez8EKOLa0=vA@mail.gmail.com>
Subject: Re: Catastrophic Cygwin find . -ls, grep performance on samba share
 compared to WSL&Linux
To: cygwin@cygwin.com
From: Dan Shelton via Cygwin <cygwin@cygwin.com>
Reply-To: Dan Shelton <dan.f.shelton@gmail.com>
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On Mon, 18 Dec 2023 at 08:05, Marco Atzeri via Cygwin <cygwin@cygwin.com> wrote:
>
> On 18/12/2023 07:53, Dan Shelton via Cygwin wrote:
> > On Mon, 18 Dec 2023 at 07:49, Marco Atzeri via Cygwin <cygwin@cygwin.com> wrote:
> >>
>
> >>
> >> Is your cygserver running ?
> >
> > Yes, Cygserver is running
> >
> > Dan
>
> Hi Dan,
>
> the fact that you have only a factor 2 to 4 compared to WSL and Debian
> tell me that Cygwin is very effective as User space enviroment.
>
>
> 1. time find . >/dev/null
> Cygwin 86 seconds
> WSL 23 seconds
> Debian 19 seconds
>
> 2. time find . -ls >/dev/null
> Cygwin 129 seconds
> WSL 38 seconds
> Debian 32 seconds
>
> 3. time grep -r -E NOMATCH 2>/dev/null
> Cygwin 390 seconds
> WSL 144 seconds
> Debian 141 seconds
>
> Cygwin can not go faster than the engine below and there are
> several cubersome tricks to handle the POSIX compliance
>
> I have seen worst timing trying to emulate  Unix Layer on top of
> a not supporting Microsoft environment.

Sorry, but I disagree. I think that Cygwin could compete with WSL in
terms of performance.
I think the issue is just bad symlink emulation for filesystems which
do not need symlink emulation.

Dan
-- 
Dan Shelton - Cluster Specialist Win/Lin/Bsd

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