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>>Regular defrags are not such a big deal.
To be clear, I think regular defrags are
important, just that they didn't have the
dramatic impact on performance that the
first first one did (in my case).
Thanks to Bob for a great tool,
BW
>From: Bob Scott <rlscott_4888@xxxxxxxxx>
>To: Bill Wynne <tradewynne@xxxxxxxxxxx>, jack_2231@xxxxxxxxx,
>fritz@xxxxxxxx, snptrader@xxxxxxxxx
>CC: omega-list@xxxxxxxxxx
>Subject: Re: Regular maintenance Defrag
>Date: Mon, 10 Dec 2001 06:53:04 -0800 (PST)
>
>How much improvement you get from regularly running my
>Unfrag routine is dependent on how you use your tick
>file. I'm an equities trader and save all ticks on
>all stocks and indexes for 6 weeks. This results in
>about 30 Mb being deleted and added per day and the
>tick file gets *very* fragmented. So for me, it is
>importantant to run Unfrag weekly.
>
>~Bob
>
>--- Bill Wynne <tradewynne@xxxxxxxxxxx> wrote:
> >
> > >Did you notice any improvement after you defragged?
> > >If so, what % increase? Anyone actually notice a
> > real
> > >difference?
> >
> > After running Bob Scott's TS Defrag, TS loaded in
> > 1/2
> > the time (tick data files collected back to 1990).
> > File size reduced 30%+. Regular defrags are not such
> > a big deal.
> >
> > BW
> >
> >
> >
> >
> > >From: Jack Griffin <jack_2231@xxxxxxxxx>
> > >To: fritz@xxxxxxxx, snptrader <snptrader@xxxxxxxxx>
> > >CC: omega-list@xxxxxxxxxx
> > >Subject: Re: Regular maintenance Defrag
> > >Date: Mon, 10 Dec 2001 04:17:06 -0800 (PST)
> > >
> > >...
> > > > them more efficiently. In the case of my
> > fragmented
> > > > TS database, the
> > > > database file was splattered in 75000 pieces all
> > > > around the disk.
> > > > Obviously it's a lot less efficient to find
> > things
> > > > in that kind of a
> > > > mess than if the file is in one piece. No
> > wonder TS
> > > > was slow
> > > > accessing its database!
> > >
> > >Did you notice any improvement after you defragged?
> > >If so, what % increase? Anyone actually notice a
> > real
> > >difference? Or is this defragging just one of
> > those
> > >things us geeks harp on for the sake of being
> > geeky?
> > >
> > >Jack
> > >
> > >
> > >
> >
> >
>
>
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