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a magnitude smaller than itc_freq. A minimum period of 10*hz is sufficient precision. As a side-effect, the number of clocks per second, when the machine is idle, dropped by more than 50%. Be anal and define the maximum period to be at least 4G seconds. With a 64-bit counter and an ITC frequency that's expected to be always less than 4Ghz, it takes longer than that to wrap around. |
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disasm | ||
ia32 | ||
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include | ||
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pci |