Hi, I am working on profiling the XEN guest VMs. I have installed XEN Hypervisor on AMD-64 machine and then I created a VM which is running debian Lenny operating system. I am interested in looking at the CPU time and the # of instructions executed by any module. I don''t know exactly which events should cover these. I tried to run XenOprofile as follows dom0> opcontrol --reset dom0> opcontrol --start-daemon --event=CPU_IO_REQUESTS_TO_MEMORY_IO:1000000 --xen=/boot/xen-syms-3.4.1 –vmlinux=/boot/vmlinux --passive-domains=1 --passive-images=/boot/vmlinux dom0> opcontrol --start Benchmark start/finish dom0> opcontrol --stop Opreport -l gives the following warning ah@hactar-03:~$ opreport -l opreport error: No sample file found: try running opcontrol --dump or specify a session containing sample files where as cat /var/lib/oprofile/samples/oprofiled.log returns this: ---- Statistics for cpu : 1 Nr. samples lost cpu buffer overflow: 0 Nr. samples received: 0 Nr. backtrace aborted: 0 Nr. samples lost invalid pc: 0 ---- Statistics for cpu : 0 Nr. samples lost cpu buffer overflow: 0 Nr. samples received: 0 Nr. backtrace aborted: 0 Nr. samples lost invalid pc: 0 .......repeated Please help if some one used xenoprof for profiling. Thanks. Best Regards, Hassan _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users