On 3/19/19 7:13 PM, Pavel Tatashin wrote: > Thank you Qian, do you happen to have qemu arguments that you used? No, the KVM guest was running in openstack. # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 24 On-line CPU(s) list: 0-23 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 24 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 79 Model name: Intel(R) Xeon(R) CPU E5-2690 v4 @ 2.60GHz Stepping: 1 CPU MHz: 2599.996 BogoMIPS: 5199.99 Virtualization: VT-x Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 4096K L3 cache: 16384K NUMA node0 CPU(s): 0-23 # free -mt total used free shared buff/cache available Mem: 41214 36331 4745 0 137 4499 Swap: 0 0 0 Total: 41214 36331 4745