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I've been backtesting ideas, and would like to get some feedback about backtest performance.
I'm using a 3GHz P4 machine with 2GB RAM under WinXP, and when I work on a collection of about 3,700 symbols, the execution time is 20 minutes on the first run, and 16 minutes thereafter. I have configured the database as follows, to ensure that the database is kept in RAM after the first run:
On Tools->Data:
- In-memory cache size (max symbols): 10,000
- Max megabytes: 1000
On File->Database Settings:
- Data source: TC200x/TCNet Plug-in
- Local data storage: <enable>
When executing, I notice at the bottom on the screen that each ticker retrieval takes 12-16 ms. Is this a normal response time for data that is supposedly being accessed from RAM? Using TuneUp 2009, I confirmed that the memory was not full during the test (42% free).
I'm using AB professional v5.2.
Can anyone help, or have I misconfigured something?
Many thanks,
Paul
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