3 ms·
Inaccurate; the very point of columnar stores is that if I'm only interested in a column I only expend the memory bandwidth required for that very column and no
by throwawayish 10y ago
Inaccurate; the very point of columnar stores is that if I'm only interested in a column I only expend the memory bandwidth required for that very column and nothing else. Hence typical queries to a columnar store would never stream the whole 500 GB for processing.
- lorenzhs 10y agoRight, a columnar store would touch only a couple (1.1bn * three numerical columns) of those 500 GB. But the question was about Redis :) The author has an overview of the benchmarks with various systems at http://tech.marksblogg.com/benchmarks.html http://tech.marksblogg.com/benchmarks.html – but one can't just compare rows as many factors vary (esp. hardware).