Hi All,
Our host PC is Dell with 2x4Cores AMD CPUs, 16GB RAM and 2 SATA-in-RAID 750GB hard disks.
We need to run up to 7 VMs on this host PC. Each VM with is W2K3 or WXP with 1 QEMU CPU on board, having 2GB of virtual RAM.
Due to our special requirements, we have to have as strong as it possible time settings in installed VMs.
We tried all possible qemu "clock" options : unix, rtc, dynticks, hpet.
Just one of these - rtc - is working fine, but, we are not able to launch 2 VMs with the same (rtc) clock option.
Other clock options are not so fine - local time on VM is drifting too much for us, so, our tests have broken almost each time.
What we've tried:
1. set local ntp server onto each VM to keep local time synchronization
2. tried to use additional tool - automachron - to do additional time synchronization
3. tried to use /usepmtimer kernel option passed to windows kernel at boot time
4. tried to switch on AoE to avoid possible issues with disk performance
...tried some other things to reduce time drifting, but all with no sufficient result

Is anybody can help with this, probably somebody solved local time problem?
Need your help, guys.