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[20050209] Article: Comparing MySQL performance (Part II, the results, Update 1)
In the second part of the comparison of MySQL performance on various operating systems, NetBSD performs quite well on a number of benchmarks with 1 CPU (even beating Linux in one case), but loses badly in SMP environment. I wonder if this is impacted by the fact that threaded applications use only 1 CPU on NetBSD, even in SMP environments - one has to set the "PTHREAD_CONCURRENCY" environment variable to something between 1 and the number of CPUs to improve concurrency.

Update: Check this out for a comparison of different DB engines (on Windows, but still; too bad it doesn't include Postgres!).

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