[PATCH] improve performance of stat() operations (e.g. ls -lR )

Conrad Scott Conrad.Scott@dsl.pipex.com
Sun May 26 18:27:00 GMT 2002

"Christopher Faylor" <cgf@redhat.com> wrote:
> Hmm.  Interesting.  It seems like -E and -X should just be defaulting
> to doing query_open.  I think that the only reason that query_open
> is not the default is that the file has to be opened for reading if
> the executable state is not known.
> Or, maybe it's actually possible not to do an open at all in those
> cases.
> Hmm, again.
> cgf

A (possibly related) note, it occurred to me the other day (as I looked at
some strace output) that opening the file during stat() --- so that you can
call GetFileInformationByHandle() --- will be slow if you've got an
anti-virus program running since they tend to intercept file opens. Then
again, I don't understand enough about cygwin *or* win32 to understand
whether you can get the same information without opening the file. Thus it
might be a win to avoid opening the file if possible on ntsf too (w/ ntsec).

// Conrad

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