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Why use a database?
I preselect 20-30K ticks, that fits nicely into 256K L2 cache. All integer arithmetics (no floats), hand optimized.- billgates
- Post #60
- Forum: Data Sets and Feeds
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Why use a database?
Duh good it is... What's your hardware, OS, Oracle version?- billgates
- Post #58
- Forum: Data Sets and Feeds
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B
Why use a database?
I'm doing 250M ticks * combinations with a $60 Celeron. Are you using c++ or python?- billgates
- Post #51
- Forum: Data Sets and Feeds
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Why use a database?
From my journal: " ------------------------------------------------------------------------ 11 Nov 03 ------------------------------------------------------------------------ Testing MySQL. Populated with 101M intraday records. Time 5.3 hours, disk space 4.3G, index 2.4G. Query to...- billgates
- Post #39
- Forum: Data Sets and Feeds
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Why use a database?
250K * 252 days * 10 years ~= 1B arithmetical operations. My $60 Celeron will do it in few seconds. Any institutional interested in leasing processing power from me, please PM.- billgates
- Post #23
- Forum: Data Sets and Feeds
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My next motherboard
My $60 Celeron does 2.4 BILLION operations a second (actually more, because it can do some operations in parallel)