On 2010-02-09, Gabriel Genellina <gagsl-...@yahoo.com.ar> wrote: > In code, using SetProcessAffinityMask and related functions: > http://msdn.microsoft.com/en-us/library/ms686223(VS.85).aspx
That solves the problem. If I don't set the process affinity mask, I regularly get measurements that are off by 6ms. I presume 6ms is the skew between the two cores' performance counter values. I don't know if that difference is stable or how it varies, but now it doesn't matter. :) -- Grant Edwards grante Yow! If our behavior is at strict, we do not need fun! visi.com -- http://mail.python.org/mailman/listinfo/python-list