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Re: Indexed search with grep-like output

From: Lennart Borgman
Subject: Re: Indexed search with grep-like output
Date: Sun, 2 Jan 2011 15:15:39 +0100

On Sun, Jan 2, 2011 at 2:53 PM, Eli Zaretskii <address@hidden> wrote:
>> From: Lennart Borgman <address@hidden>
>> Date: Sun, 2 Jan 2011 14:46:45 +0100
>> Cc: address@hidden
>> > Yes, I use one of the tools that builds on Lucene (see
>> > http://www.methods.co.nz/docindexer/) to index MS Office documents
>> > (some 17,000 of them) I have on my office machine.  It is also very
>> > fast: just a few seconds to return a query.
>> Is that from within Emacs or?
> It doesn't matter.  Most of the time is to output a long list of
> documents, i.e. I/O.

Does that mean you actually see the same time inside of Emacs as
outside of Emacs? Or is it just what you expect?

>> The subprocess must be the current process when it sends the output to
>> Emacs and Emacs must be the current process when it receives the
>> output. So the operating system has to switch between them and as I
>> understands it that operation is rather costly on w32 especially.
> "Rather costly" compared to what?  I see no such issues on Windows (on
> a 6-year old machine).  If they exist, they must be negligible
> relative to other factors.

That is not how I remember it, but I do not have time to look it up now.

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