VMWare Install Notes:
{Early notes} I was having clock problem and one of these solved it.
Gordon Rayburn reported that:
“I was getting “calcru: runtime went backwards” errors until sysctl.conf was updated with “kern.timecounter.hardware=TSC”. Timecounter was using two clocks, the VPC clock and the host system clock. I chose the TSC clock as it was reported as slower than the ACPI-safe clock. I figured (guessed) that it was better to use the slower clock as I have my VPC setup to use less cpu when off-focus of the guest o/s”
Matthew Swinbourne writes that, if you notice the clock running very quickly, then
“..if you set kern.timecounter.hardware=i8254 in /etc/sysctl.conf and reboot or set it via the cmd line “sysctl kern.timecounter.hardware=i8254″ it slows down to normal time”