Re: [PATCH v2 0/1] Accept unaccepted kexec segments' destination addresses

quoted

It sounds like you're advocating for the "slow guest boot" option.
Kirill, can you remind us how fast a guest boots to the shell for
modestly-sized (say 256GB) memory with "accept_memory=eager" versus
"accept_memory=lazy"? IIRC, it was a pretty remarkable difference.

I only have 128GB machine readily available and posted some number on
other thread[1]:

  On single vCPU it takes about a minute to accept 90GiB of memory.

  It improves a bit with number of vCPUs. It is 40 seconds with 4 vCPU, but
  it doesn't scale past that in my setup.

We have seen similar boot performance improvements on our larger shapes
of VMs. Both lazy accept and kexec with TDX are important features for us.


--
Jianxiong Gao