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RE: cygwin performance
- From: "Hannu E K Nevalainen" <garbage_collector at telia dot com>
- To: <cygwin at cygwin dot com>
- Date: Wed, 22 Oct 2003 21:40:10 +0200
- Subject: RE: cygwin performance
> From: Linda W.
> Sent: Wednesday, October 22, 2003 12:49 AM
> >>Perhaps it is unavoidable, but I see things like find doing 2
> >>'opens' /file when it is searching for files...can't it just do a
> >>'stat' of some nature? does it need to do an open, let alone 2?
I believe that the major culprit is looking for executable files. If I have
understood things correctly.
$ mount -h | grep exe
-x, --executable treat all files under mount point as executables
-E, --no-executable treat all files under mount point as
non-executables
-X, --cygwin-executable treat all files under mount point as
cygwin executables
I've not tried this, but anyway: I wonder what happens if one uses the
sequence;
umount /blaha
mount -E / -X / -x "MS-PATH" /blaha
find /blaha ...
umount /blaha
mount -bs "MS-PATH" /blaha
I'd suspect there could be a "slight" time reduction. Of course this cannot
be done on subdirectories, just mount points.
OTOH it might enlighten users about the benefit of using the -E/X/x mount
flags. Also; having done "mount -E" could well be considered a security
issue... maybe ;-P
/Hannu E K Nevalainen, B.Sc. EE - 59?16.37'N, 17?12.60'E
-- printf("Timezone: %s\n", (DST)?"UTC+02":"UTC+01"); --
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