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Message-ID: <e01112b1-a8c9-4aa9-a5a2-5827187106dd@maxrnd.com>
Date: Sun, 28 Jan 2024 23:56:03 -0800
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Subject: Re: /usr/bin/fallocate -v -d -l 2 myfile takes forever
To: cygwin@cygwin.com
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From: Mark Geisert via Cygwin <cygwin@cygwin.com>
Reply-To: Mark Geisert <mark@maxrnd.com>
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On 1/28/2024 10:44 PM, Cedric Blancher via Cygwin wrote:
> Good morning!
> 
> rm -f myfile
> touch myfile
> /usr/bin/fallocate -v -d -l myfile takes forever with latest Cygwin 3.5
                              ^ length goes here, before filename

I believe you need to
     chattr +S myfile
after the 'touch' to make the file sparsifiable.

Also, I'm unsure if '-d' makes sense when initially allocating a sparse 
file.  If I leave it off, fallocate does the right thing.

I'm separately investigating the 'takes forever' report.

..mark


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