On Wed, 12 Jan 2011 10:45:20 -0600, Tom Lane <t...@sss.pgh.pa.us> wrote:

The short of it is that cheap motherboards tend to provide cheap clock hardware that takes about a microsecond to read.

I'm not sure how gettimeofday() works, but is there a slight chance this could be alleviated by choosing a different kern.timecounter.hardware option?

kern.timecounter.choice: TSC(800) HPET(900) ACPI-fast(1000) i8254(0) dummy(-1000000)
kern.timecounter.hardware: ACPI-fast

Or does the kernel timer stuff have nothing to do with gettimeofday()?


Regards,


Mark

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