1st improving suggested by mateussouzaweb
<features>
<acpi/>
<apic/>
<pae/>
<hyperv>
<relaxed state='on'/>
<vapic state='on'/>
<spinlocks state='on' retries='8191'/>
<vpindex state='on'/>
<synic state='on'/>
<stimer state='on'/>
<reset state='on'/>
</hyperv>
</features>
<clock offset='localtime'>
<timer name='rtc' tickpolicy='catchup'/>
<timer name='pit' tickpolicy='delay'/>
<timer name='hpet' present='no'/>
<timer name='hypervclock' present='yes'/>
</clock>Result : No improvement
CPU Benchmarks
2nd improvement suggested by jiva_maya
<features>
...
...
<hyperv>
<relaxed state='on'/>
<vapic state='on'/>
<spinlocks state='on' retries='8191'/>
<vpindex state='on'/>
<runtime state='on'/>
<synic state='on'/>
<stimer state="on"/>
<reset state='off'/>
<frequencies state='on'/>
<reenlightenment state='off'/>
<tlbflush state='on'/>
<ipi state='on'/>
<evmcs state='off'/>
</hyperv>
...
<ioapic driver='kvm'/>
</features>
^Some of the above enlightenments will need kernel 4.20+, if you need vendor_id/kvm hidden state, nested virt hyperv flags, etc. enabled please refer to the libvirt.org documentation below
<clock offset="localtime">
<timer name="rtc" tickpolicy="catchup"/>
<timer name="pit" tickpolicy="delay"/>
<timer name="hpet" present="no"/>
<timer name="hypervclock" present="yes"/>
<timer name="tsc" present="yes" mode="native"/>
</clock>Benchmark
result : no improvement
CPU Benchmarks :
