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PureBytes Links
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That depends on how many arrays you use in your afl.
for example, if each field on a record is loaded, it uses up 40 bytes
but each array is only 4 bytes * nSize. 1 M of L2 cache will keep 250 bars of a single array, ie 25000 bars will need 10 M of cache. There are roughly 400 bars of 1 min per day session or 2000 bar per week.
--- In amibroker@xxxxxxxxxxxxxxx, "sidhartha70" <sidhartha70@xxx> wrote:
>
> Brilliant TJ. Thanks.
>
> Question... I want to start looking at some n-sec timeframes.
>
> Mainly 15 sec, and 30 sec.
> I currently use a 25,000 bar 1 min DB which runs super quick because it keeps all the data within the CPU cache, and also gives me about a weeks work of data on the e-mini's which is all I need for day trading.
>
> To get 15 sec & 30 sec intervals, I assume I am best to set my DB base interval to 15 sec, and then set a 30 sec interval up via preferences>intraday....??
>
> Any ideas how far I can push the number of bars to in my DB and keep all the data in CPU cache still to keep the speed high...??
>
> I'm running an Intel Xeon X5365 CPU.
>
> TIA
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@> wrote:
> >
> > Hello,
> > AmiBroker 5.28.0 BETA released:
> >
> > http://www.amibroker.com/devlog/2009/08/22/amibroker-5-28-0-beta-released/
> >
> >
> > Best regards,
> > Tomasz Janeczko
> > amibroker.com
> >
>
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