Overview
Provides information on how to improve the performance of Cisco Catalyst 8000V running in an ESXi environment by adjusting the settings on the host and the virtual machine.
Improve the performance of Cisco Catalyst 8000V running in an ESXi environment by adjusting these settings on the host and the virtual machine.
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Enable the hypervisor performance settings on the hypervisor.
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Limit the overhead of vSwitch by enabling SR-IOV for supported physical NICs.
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Ensure that the vCPUs of the VM run on the same NUMA node as the physical NICs.
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Set the VM Latency Sensitivity setting to High.
Host configuration settings
To improve VMware ESXi performance, use the host configuration settings described here.
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Choose High Performance from the Power Management field.
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Disable Hyperthreading.
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Enable SR-IOV for supported physical adapters.
Virtual machine configuration settings
To improve the performance of the VMware ESXi configuration, configure these settings on the host:
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Ensure that the ESXi version is compatible with your Cisco Catalyst 8000V version.
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Set the Virtual Hardware: CPU reservation setting to Maximum.
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Reserve all the guest memory in Virtual Hardware: Memory.
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Choose the VMware Paravirtual option from Virtual Hardware: SCSI Controller.
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From the Virtual Hardware: Network Adapter: Adapter Type option, choose SR-IOV for supported NICs.
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Configure the option to Other 3.x or later Linux (64-bit).
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Configure the VM Options option under Advanced Latency Sensitivity to High.
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In , add numa.nodeAffinity to the same NUMA node as the SRIOV NIC.