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Subject: Re: So what does Indexing Date: Sat Jun 13 2015 09:56 am
From: Ky Moffet To: Barry Martin

BARRY MARTIN wrote:

> I know some people say to retain the Swap File because some functions
> will fail to work properly (like havign multiple windows open while
> others say to kill off the Swap File (and I also read even if killed off
> Windows [XP?] will still retain soemthing like 64 MB of Swap, but what

Yeah, XP insists on at least a tiny swapfile, I think it's 24mb or some 
such silly amount. Win9x didn't, and I generally turned it off, or made 
it very small if I was using some app that was stupid about it (like 
some older Photoshop filters). I have yet to find anything in Windows 
itself that complains about its lack.

But preventing it from using swap any more than absolutely necessary 
will always speed things up; indeed, there used to be (may still be) a 
tweak to make Windows keep all the OS stuff in RAM all the time to avoid
swap-slowdowns.

Indeed, I've noticed that having no swap and not enough RAM, so it has 
to reload from disk a lot, performs slightly better than the same 
situation with a swapfile. Either way it still has to reread from disk, 
but pawing through the swapfile is apparently slower than pawing through 
the rest of the HD.

> does Indexing do?  I agree it puts a horrendous drag on the system: when
> I reboot it automatically re-indexes, and the system is definately
> sluggish.  Pause indexing and sluggishness is gone.  I'm just not sure
> what indexing does, so reluctant to turn off and find out the hard way!

Supposedly Indexing makes Search faster. But my observation is that it 
makes for drag on the system every time there's a disk access, and 
turning it off can more than double performance. I have a suspicion that 
it scans the entire index database every time any file is accessed.
(Actually, one system I benchmarked, an AMD64 so not too seriously 
antique, ran FIVE TIMES faster with indexing disabled. Search was 
actually faster without it.)

I imagine Indexing could be useful on a network, but for individual 
desktops? Not that I can see.
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