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Avoid HyperThreading like the plague !!!


Without starting a major debate or religious war - my advice is to disable HT on Intel Petium and Xeon chips on database servers. There is no performance gain under this type of load - and often the results can be worse, or simply unpredictable. If you need 4 CPU’s - then buy a quad core, two dual cores, or a quad motherboard. HT does not scale for database server usage. Read about the HT pipeline stalls to see why :slight_smile: