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You: > If it’s a timesliced core, then it’s not what they say they’re selling (a hyperthread). vs. _msw_: > A core can be sequentially time sliced between
by cthalupa 8y ago
You:
> If it’s a timesliced core, then it’s not what they say they’re selling (a hyperthread).
vs.
_msw_:
> A core can be sequentially time sliced between customer instances when you use a fractional (m3.medium) or burst (T2 instances) CPU instance type.
AWS instance types page ( https://aws.amazon.com/ec2/instance-types/ https://aws.amazon.com/ec2/instance-types/ ):
> Each vCPU is a hyperthread of an Intel Xeon core except for T2 and m3.medium.
- h4b4n3r0 8y agoNot in Google’s case. There vCPU == hyperthread. To quote https://cloud.google.com/compute/docs/machine-types https://cloud.google.com/compute/docs/machine-types: "For the n1 series of machine types, a vCPU is implemented as a single hardware hyper-thread". One more area where Google is more explicit. Only their partial vCPU instances are timesliced: "Shared-core machine types provide one vCPU that is allowed to run for a portion of the time on a single hardware hyper-thread on the host CPU running your instance".