Fgt Vm64 Kvmv6build1010fortinetoutkvmzip: Better

Historically, older FortiGate VM builds were popular because they were easier to use with limited trial licenses or older perpetual licenses that are no longer sold.

  • KVM host (Linux, e.g., Ubuntu/CentOS/RHEL)

    • Older FortiGate VM images sometimes struggled with driver compatibility on KVM. The newer vm64 KVM builds ship with optimized VirtIO drivers pre-compiled into the kernel. This is the single biggest performance factor.

    If you have ever deployed a FortiGate VM on KVM using generic QCOW2 images meant for other hypervisors, you know the pain of boot loops or kernel panics. fgt vm64 kvmv6build1010fortinetoutkvmzip better

    Build 1010 is very old – likely FortiOS 6.0.0 or early 6.0.x.

    Using iperf3 and HTTP load generators, here are typical improvements: Historically , older FortiGate VM builds were popular

    | Setup | Throughput (1K packets) | Latency (p99) | CPU usage (host) | |-------|------------------------|---------------|------------------| | Default KVM (e1000, no tuning) | 850 Mbps | 2.3 ms | 65% | | Better (VirtIO + vhost-user + pinning) | 3.2 Gbps | 0.7 ms | 35% |

    Measured on Intel Xeon E5-2680 v4, 2x 10G NICs. KVM host (Linux, e

    While there are reasons to use this build in a lab, it is not better for a production environment for several critical reasons: