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A comment on Intel's make-or-break 18A process node debuts for data center with 288-core Xeon. Parent comment

Re:Intel's make-or-break 18A process node debuts for data ce... by amelius on Tuesday March 03, 2026 @03:03PM (#47238113)
Without the hyperthreading (E-cores) you get more consistent performance between running tasks, and cloud providers like this because they sell "vCPUs" that should not fluctuate when someone else starts a heavy workload.
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Re:Intel's make-or-break 18A process node debuts for data ce... by hedora on Tuesday March 03, 2026 @03:15PM (#47238297)
Sort of. They can just sell even numbers of vCPUs, and dedicate each hyper-thread pair to the same tenant. That prevents another tenant from creating hyper-threading contention for you.
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Re:Intel's make-or-break 18A process node debuts for data ce... by harias on Tuesday March 03, 2026 @03:18PM (#47238347)
OP is probably talking about shared vCPUs, not dedicated
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Re:Intel's make-or-break 18A process node debuts for data ce... by hedora on Tuesday March 03, 2026 @03:54PM (#47238834)
For those, wouldn't hyperthreading be a win? Some fraction of the time, you'd get evicted to the hyperthread that shares your L1 cache (and the hypervisor could strongly favor that).
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