[amibroker] Re: AmiBroker 5.28.0 BETA released

["sidhartha70" <sidhartha70@xxxxxxxxx>]

So it's AFL specific...?? And given that code is always changing/evolving it's a moving target...?

Ummm. That makes things trickier.

I guess I'll just have to experiment.

--- In amibroker@xxxxxxxxxxxxxxx, "paultsho" <paul.tsho@xxx> wrote:
>
> 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@> 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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