Category Archives: performance

Solr vs elasticsearch Deathmatch!

Solr vs elasticsearch If you need good full-text search or faceted search, Apache Solr has been the standard.  I’ve used it myself for three projects in the past, and it is indeed a very powerful and stable product. But there’s … Continue reading

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XORShift vs Random performance in Java

Java’s Random class uses a linear congruential generator, which has mediocre quality at best,  and then to add insult to injury, wrapped more crap around it (configurable number of bits per call, useless thread safety) to make it slow to boot! I had … Continue reading

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