Re: [ jEdit-users ] Fast Open not so fast

[Jiger P. <jig...@ho...>]

Though, I would recommend the new 2.1 and have always found it suitable even 
on 10000+ files project, if you want to go back to the old query per 
keystroke behaviour then read FO's docs and set the required properties.

Jiger


>From: "Alan Ezust" <ala...@gm...>
>To: "Jiger Patel" <jig...@ho...>
>CC: jed...@li...
>Subject: Re: [ jEdit-users ] Fast Open not so fast
>Date: Wed, 22 Nov 2006 08:28:17 -0800
>
>I have to say, I find 0.5 seconds a little too slow for my tastes. I'd
>like it to be 0.3 or even 0.1 seconds.
>
>And I also have the same problem of sometimes, it not refreshing the
>match list  if I type while there is a reindex happening and then stop
>typing before it is finished reindexing.
>
>On 11/22/06, Zoltán Kócsi <zo...@be...> wrote:
> > On Tue, 21 Nov 2006 13:57:58 +0530
> > "Jiger Patel" <jig...@ho...> wrote:
> >
> > > FO 2.1 introduces "wait before search" to "improve" performance. In
> > > the sense that typically you type faster than your computer can
> > > process(in relative sense!) and you generally know the file you want
> > > to open so you quickly type 3-4 characters of the filename. What used
> > > to happen previously is that for EACH character, FO used to go for
> > > search which as you might have guessed was unneccesary.
> >
> > Hm. A typical computer today executes about 1 billion instructions
> > a second. I'm a very messy person and thus my homedir is full of
> > junk files. It's about 5G, however, the top level directory contains
> > only about 2000 filenames, averaging around 15 characters each.
> >
> > Even if the search has to check every single filename in its entire
> > length that would be around 30,000 characters' worth (and that is a
> > mindless brute-force algorithm).
> > If I can outtype a machine with a 1 GHz CPU when between keypresses it
> > has to do about 30K character compares and refresh a list in a window
> > then there's something fundamentally wrong there.
> > In any half-decent 3D game they render a scene composed of many
> > thousands of triangles in about 1/20 - 1/100s, and even though the
> > rendering itself is done by the GPU the mesh as such is calculated and
> > delivered to the GPU by the CPU.
> >
> > I don't know what is not right, but something must be. The roughly 1/10
> > of a second between keypresses should be an ethernity to an algorithm
> > which selects the matching entries from a list of a few thousand
> > strings on any reasonably recent computer today.
> >
> > > time it batches the now 3-4 characters and does a single search.
> > > thereby improving performance and overall experience. This is not new
> > > but you can see the same done by your IDEs before providing you code
> >
> > Not new for sure - WordStar on CP/M did it back in the late 1970s.
> > Mind you, that ran on a 2MHz 8080 CPU with 64K RAM and 360K
> > floppies and the timeout was only around 0.5~1 sec or so :-)
> >
> > Zoltan
> >
> > 
>-------------------------------------------------------------------------
> > Take Surveys. Earn Cash. Influence the Future of IT
> > Join SourceForge.net's Techsay panel and you'll get the chance to share 
>your
> > opinions on IT & business topics through brief surveys - and earn cash
> > 
>http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > --
> > -----------------------------------------------
> > jEdit Users' List
> > jEd...@li...
> > https://lists.sourceforge.net/lists/listinfo/jedit-users
> >
>
>-------------------------------------------------------------------------
>Take Surveys. Earn Cash. Influence the Future of IT
>Join SourceForge.net's Techsay panel and you'll get the chance to share 
>your
>opinions on IT & business topics through brief surveys - and earn cash
>http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
>--
>-----------------------------------------------
>jEdit Users' List
>jEd...@li...
>https://lists.sourceforge.net/lists/listinfo/jedit-users

_________________________________________________________________
Headache during sex? Ask Dr. Prakash & Rachna  
http://content.msn.co.in/Lifestyle/AskExpert/Default03.htm