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From:Adam Nelson Date:March 26 2003 11:10pm
Subject:innodb_thread_concurrency and hyperthreading
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So I'm setting up a fancy new machine with Xeons doing hyperthreading.
What this means is that there are 2 physical processors, but as far as
linux is concerned, there are 4.  Does anybody know whether
thread_concurrency should be 2*(Number of Physical Processors) or
2*(Number of Virtual Processors).

I'm leaning towards the virtual (which comes out to 8) but I am open to
suggestions.

mysql



Thread
innodb_thread_concurrency and hyperthreadingAdam Nelson27 Mar