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Re: Domain-0 CPU pinning - is it still a best practice?

cpus = "all,^0,^1"

I rather share all CPUs and let the scheduler prioritize dom0 as such (default weight is 256):

xl sched-credit2 --domain=0 --weight=512

The only drawback is that I need to be careful on what I do on the host, to let some juice available for the guests. The good thing about it is that the dom0 also shares all cores, I guess)

Sorry it's not a definitive answer, as I did not compare and stress-bench this against an old-school pinning setup.

Pierre-Philipp Braun
SMTP Health Campaign: enforce STARTTLS and verify MX certificates



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