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From:	Achim Gratz <Stromeko AT nexgo DOT de>
To:	cygwin AT cygwin DOT com
Subject:	Re: Performance of "ls -F"
References:	<loom DOT 20160121T163405-489 AT post DOT gmane DOT org> <CAH5rLZVWiGz2n-3Ru-C0_5KU-Cc4NipJPn1NQVphN2UetUK4iA AT mail DOT gmail DOT com> <3a9ff6ec2d5e4e64a96a8f8e31d12f22 AT ntmaexbe04 DOT bedford DOT progress DOT com> <loom DOT 20160122T082744-501 AT post DOT gmane DOT org> <20160122201418 DOT GC3268 AT calimero DOT vinschen DOT de>
Date:	Fri, 22 Jan 2016 22:04:13 +0100
In-Reply-To:	<20160122201418.GC3268@calimero.vinschen.de> (Corinna Vinschen's message of "Fri, 22 Jan 2016 21:14:18 +0100")
Message-ID:	<8737tpqqb6.fsf@Rainer.invalid>
User-Agent:	Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)
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Corinna Vinschen writes:
> Just a hint:  ls -F requires to stat every single file.  stat in turn
> requires to load not only the usual metadata but also to fetch the ACL
> and convert it to POSIX permissions.

The timings are from shares mounted with the noacl option, so that bit
of code shouldn't be involved.  I will try the same operations on an ACL
enabled mount of the same share later and I also need to find a share
that is exported from a true NTFS server for comparison.

> Assuming this slow access only occurs under 2.4.0,

No, the behaviour is quite a bit older, although I didn't time it since
I didn't recognize the connection to the aliased ls.  In any case, it
really is just the determination of whether or not the file is
executable that takes up all that time.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Waldorf MIDI Implementation & additional documentation:
http://Synth.Stromeko.net/Downloads.html#WaldorfDocs

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