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* Where available (not in SLES9 SP4), kvm-clock is to be used. * When using kvm-clock, running NTP inside the guest is not recommended * kvm-clock -> On SLE 11 and SLE 10 SP3 verify via “dmesg | grep kvm-clock” * You can verify kvm-clock is enable by checking /sys/devices/system/clocksource/clocksource0/current_clocksource Output should say "kvm-clock" * Disabling kvm-clock: add "no-kvmclock" as kernel parameter to guest On SLES 9 SP4 specify the following boot parameters in order to have proper time keeping: for 32 bit kernel: clock=pmtmr for 64 bit kernel: ignore_lost_ticks