Hi, we are developing an x86 application that we are testing using qemu and are having some issues with the PIT clock count. We are using PIT clock count as a reference to measure cpu frequency:
wait_wrap() a=read_current_cycles() wait_wrap() b=read_current_cycles() calculate_freq(a,b)... The problem is that when running in qemu it sometimes "loops twice" in the wrap wait, thus reporting twice the cycles. The same problem occurs whether I am running 100Hz or 1000Hz. Is this a known bug? And is there any solution? I recall I have seen similar problems with VMWare and Linux. _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
