NUMA-You can improve performance of the ASA See Performance Tuning for more information. Virtual, you can make adjustments to the both the VM and the host. To achieve the best performance out of the ASA We recommend you upgrade this vNIC version to other versions as a workaround to fix this issue. Virtual instance running on KVM system might encounter data connectivity issues with the SR-IOV interface using the vNIC driver i40e Virtio-This is a para-virtualized network driver that supports 10Gbps operation but also requires CPU cycles. SR-IOV is generally preferred because it has more deployment flexibility. I40evf/ixgbe-vf-Effectively the same as above (DMAs packets between the NIC and the VM) but allows the NIC to be shared across No CPU cycles are required for moving packets. I40e in PCI passthrough-Dedicates the server's physical NIC to the VM and transfers packet data between the NIC and the VM The following vNICs are recommended in order of optimum performance. The Intel® Xeon® CPU E5-2690v4 processors running at 2.6GHz. Virtual performance test labs use as minimum the following: Cisco Unified Computing System™ (Cisco UCS®) C series M4 server with The host CPU must be a server class x86-based Intel or AMD CPU with virtualization extension. Make sure to conform to the specifications below to ensure optimal performance. Review the following guidelines and limitations before you deploy the ASA It is not possible to change the resource allocation of the disk space. Virtual deploys with a disk storage size of 8GB. Requires a minimum resource allocation-memory, number of CPUs, and disk space-on the host machine. Virtual deployments can vary, depending on the number of instances deployed and usage requirements. Virtual runs with less than 2GB of memory, you cannot upgrade to 9.13(1)+ from an earlier version without increasing the memory of The minimum memory requirement for the ASA Virtual on any server class x86 CPU device that is capable of running the Kernel-based Virtual Machine (KVM).
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