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Re: [amibroker] Speed issues with Premium Data



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Thank you, Tomasz, I'll try that.  Do I also need to change the "in memory cache size (max. symbols)"?

The PremiumData database with all the backlisted symbols is huge, so maybe I just haven't sized the data preferences big enough.

ges


On Thu, Apr 10, 2008 at 12:59 PM, Tomasz Janeczko <groups@xxxxxxxxxxxxx> wrote:

If you want caching and faster use of MS databases, go to File->Database Settings
and change "Local database storage" to "Enabled", also you may go to
Tools->Preferences->Data and increase 'in-memory cache'.

Best regards,
Tomasz Janeczko
amibroker.com


----- Original Message -----
From: "ges" <ges8ges@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, April 10, 2008 8:36 PM
Subject: [amibroker] Speed issues with Premium Data

> I've used QuotesPlus with AB for quite a while and just got
> PremiumData's historical data and delisted data and am having speed
> problems with PremiumData.
>
> With QuotesPlus, after the first run of an exploration or backtest, AB
> keeps the data in memory and subsequent runs are very fast and there
> is not the constant disk access to bog the computer down when doing
> other tasks.
>
> With PremiumData I can't get the same behavior. Is this because the
> PremiumData data is in Metastock format? Or is it my database settings?
>
> I have tried changing the database settings every way I can think of,
> but I can't get AB to handle the PremiumData the same speedy way that
> id does QP data.
>
> Is there some change to database prefs/settings that will allow AB to
> keep the PremiumData in memory or is this just a limitation of the
> Metastock data format?
>
> Thanks for any suggestions.
>
> ges
>
>
> ------------------------------------

>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
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> Yahoo! Groups Links
>
>
>

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Please note that this group is for discussion between users only.

To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com

For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/

For other support material please check also:
http://www.amibroker.com/support.html




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