https://live.paloaltonetworks.com/t5/vm-series-in-the-public-cloud/vm-series-on-azure-with-hyperthreading-disabled/m-p/1231646#M2374 <P>By default VMs on Azure will run with hyperthreading enabled. It seems <A href="https://learn.microsoft.com/en-us/answers/questions/2277006/would-you-help-disabling-hyperthreding-in-linux-vm" target="_self">possible</A> to run with hyperthreading disabled on Azure, and running vm-series with hyperthreading disabled is in fact <A href="https://docs.paloaltonetworks.com/vm-series/10-1/vm-series-deployment/set-up-a-vm-series-firewall-on-an-esxi-server/performance-tuning-of-the-vm-series-for-esxi/vnf-tuning-for-performance" target="_self">recommended</A> on other virtualization platforms.</P> <P>&nbsp;</P> <P>Is anyone running vm-series on Azure with hyperthreading disabled? It seems to me that the way vm-series is designed, assigning different CPU to either dataplane or management plane, would work better with hyperthreading disabled no matter the virtualization platform, and would prevent one process to steal CPU from another (that could lead to occasional latency on the dataplane).</P> <P>&nbsp;</P> <P>Thanks</P> Thu, 12 Jun 2025 18:48:53 GMT frigault 2025-06-12T18:48:53Z https://live.paloaltonetworks.com/t5/vm-series-in-the-public-cloud/vm-series-on-azure-with-hyperthreading-disabled/m-p/1231646#M2374 <P>By default VMs on Azure will run with hyperthreading enabled. It seems <A href="https://learn.microsoft.com/en-us/answers/questions/2277006/would-you-help-disabling-hyperthreding-in-linux-vm" target="_self">possible</A> to run with hyperthreading disabled on Azure, and running vm-series with hyperthreading disabled is in fact <A href="https://docs.paloaltonetworks.com/vm-series/10-1/vm-series-deployment/set-up-a-vm-series-firewall-on-an-esxi-server/performance-tuning-of-the-vm-series-for-esxi/vnf-tuning-for-performance" target="_self">recommended</A> on other virtualization platforms.</P> <P>&nbsp;</P> <P>Is anyone running vm-series on Azure with hyperthreading disabled? It seems to me that the way vm-series is designed, assigning different CPU to either dataplane or management plane, would work better with hyperthreading disabled no matter the virtualization platform, and would prevent one process to steal CPU from another (that could lead to occasional latency on the dataplane).</P> <P>&nbsp;</P> <P>Thanks</P> Thu, 12 Jun 2025 18:48:53 GMT https://live.paloaltonetworks.com/t5/vm-series-in-the-public-cloud/vm-series-on-azure-with-hyperthreading-disabled/m-p/1231646#M2374 frigault 2025-06-12T18:48:53Z