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Same testing time lenght on two differnet computers?
 Post subject: Same testing time lenght on two differnet computers? Post rating: 0   Post Posted: Wed 10 Aug, 2011, 11:12 

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Joined: Fri 05 Aug, 2011, 13:02
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Location: PL
Hi,

I have been testing one of my strategies using Historical Tester. It is quite simple strategy with parameters: Optimization (6 currencies), Tick, Last year.

I did the same testing on two different PC computers:
1. Core 2 Quad, 2.5 GHz, Q8300, 5 GB RAM, Win XP Re 3 32-bit
2. Intel Core i7 920 2.66 GHz, 6 GB RAM, Win 7 Pro 64-bit

Testing last 24 hours on both computers (no difference).

My questions are:
- why such processing last 24 hours on both computers which have quite different specification. Why there is no difference? Is it because of Java language specification, your platform specification, other reasons?
- What computer or set of computers or software do I need in order to make testing faster - 10-times, 100-times?
- What is the right procedure (recommended by you) to make testing faster?


 
 Post subject: Re: Same testing time lenght on two differnet computers? Post rating: 0   Post Posted: Thu 11 Aug, 2011, 11:35 
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Joined: Fri 31 Aug, 2007, 09:17
Posts: 6139
kucharek wrote:
- why such processing last 24 hours on both computers which have quite different specification. Why there is no difference? Is it because of Java language specification, your platform specification, other reasons?
Without an insight in processor architecture, a credible reason for this is that both of the processors have about the same calculating power. RAM is big enough for both of the computers, not to cause differences in computation.
kucharek wrote:
- What is the right procedure (recommended by you) to make testing faster?
You can speed-up the testing by using some of interpolation methods that can be found in Historical Data subpanel. Mind that testing speed-up comes with a precision trade-off - the bigger the interpolation period and the bigger the testing speed-up the more the testing results might differ from the results with No interpolation option.
Also straightforwardly you can consider testing over smaller periods.


 

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