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b,
Generally speaking all Microsoft file systems (FAT, FAT32, NTFS) slow down
when there is more than 1000 files in single folder. Exact results depend
on hard disk, disk cache, RAM size, disk fragmentation, etc.
Loading database however does not require reading all files as AmiBroker
maintains broker.master file that contains all info that need to be loaded
at startup. Individual files are accessed only when needed (when quotes
must be read, for example during scan).
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "b519b" <b519b@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Sunday, June 08, 2003 3:37 PM
Subject: [amibroker] AB data base structure and speed (perhaps only Thomasz can answer)
> Does it matter if one puts several thousand tickers into a single AB
> data folder. For example, if one makes all inactive stocks with a
> prefix like _IBM? That will put about 5,000 stocks into the "_"
> folder in the AB database.
>
> Does having 5,000 or more tickers in the same folder slow AB down
> when retriving data?
>
> b
>
>
>
>
> Send BUG REPORTS to bugs@xxxxxxxxxxxxx
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>
>
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Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
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