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Schmidt2008experimental +
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| Author
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Tim Lebo +
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| Modification dateThis property is a special property in this wiki.
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27 November 2008 14:33:03 +
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| Question asked
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The only place the ratios of usr, sys, and … The only place the ratios of usr, sys, and total response times are mentioned is in the discussion for Q1 ("Return the year of publication of 'Journal 1 (1940)'", where the authors state, "The gap between total and usr+sys for 25M indicates that much time is spent in waiting for data being read from or written to disk". The choice to use different vertical scales in Figures 1-3 leads to an investigation of these ratios while obscuring a natural consideration of the more important issue: the relative response times between triple store approaches. Regardless, the ratio usr/sys falls within one of three categories: minority/majority, all/none, and none/none -- and the ratio's category transitions from none/none, to all/none, to minority/majority as the data size increases within a condition.
# What does the ratio of usr and sys times indicate with respect to the performance of the query execution? to the performance of the query execution?
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| Question asked by
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Tim Lebo +
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| Question for the Presentation
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Jesse Weaver RDF Management Approaches +
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| Text
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The only place the ratios of usr, sys, and … The only place the ratios of usr, sys, and total response times are mentioned is in the discussion for Q1 ("Return the year of publication of 'Journal 1 (1940)'", where the authors state, "The gap between total and usr+sys for 25M indicates that much time is spent in waiting for data being read from or written to disk". The choice to use different vertical scales in Figures 1-3 leads to an investigation of these ratios while obscuring a natural consideration of the more important issue: the relative response times between triple store approaches. Regardless, the ratio usr/sys falls within one of three categories: minority/majority, all/none, and none/none -- and the ratio's category transitions from none/none, to all/none, to minority/majority as the data size increases within a condition.
# What does the ratio of usr and sys times indicate with respect to the performance of the query execution? to the performance of the query execution?
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