Changes between Version 67 and Version 68 of DatabaseBasedAnalysis


Ignore:
Timestamp:
08/06/18 15:44:36 (6 years ago)
Author:
tbretz
Comment:

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  • DatabaseBasedAnalysis

    v67 v68  
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    757 Note that this is the result of the analysis of a dataset which, as a whole, is more than 100GB and even reduced to Crab after quality cuts still is of the order of GB! Why is this so much faster? I guess it has two reasons:
     757Note that this is the result of the analysis of a dataset which, as a whole, is more than 100GB and even reduced to Crab after quality cuts still is of the order of GB! As a comparison. The source code which does all the calculations in compiled C++ code takes about 4.5s on the same machine.
     758
     759Why is this query so much faster? I guess it has two reasons:
    758760
    7597611) Only variables which are really needed in the next step are kept (reduces memory consumption)