Thanks Gleb. Here we go: This time results appear more closer to what Ren mentioned in his previous email - i.e. enabling VMCS Shadowing didn't "degrade", the Kernel compile time in L2. 1] VMCS Shadowing *enabled* on L0; Kernel build on L2, 3.10.0-0.rc0.git26.1.fc20.x86_64 Kernel build time on L2 ------------------------------ $ time make [...] real 31m0.386s user 16m43.655s sys 14m6.451s kvm_stat intervals on L1 ------------------------------- - http://kashyapc.fedorapeople.org/virt/kvm_stat-VMCS-Shadowing/kvm_stat-L0-VMCS-Shadowing-enabled.txt - NOTE: The below statistics are from intervals ranging from 30 seconds to 6,10,13.. minutes. 2] VMCS Shadowing *disabled* on L0; Kernel build on L2, 3.10.0-0.rc0.git26.1.fc20.x86_64 Kernel build time on L2 ------------------------------ $ time make [...] real 40m56.010s user 20m19.061s sys 19m57.723s kvm_stat intervals on L1 ------------------------------- - http://kashyapc.fedorapeople.org/virt/kvm_stat-VMCS-Shadowing/kvm_stat-L0-VMCS-Shadowing-disabled.txt - NOTE: The below statistics are from intervals ranging from 30 seconds to 6,10,13.. minutes. Looks better ? (Note to self: Maybe I should run these more number of times to monitor consistency) Thanks, Kashyap. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html