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Comment by Animats

14 hours ago

If, of course, you have the CPU and its caches all to yourself.

This is something i have been thinking about lately. How well do these performance optimizations work in the cloud on a shared system?

  • It’s fair to assume that on a vm in the cloud the cores you get are dedicated to you - otherwise the CSP is risking exposure to headline making security problems.. (In the unpleasant event that someone exploits an unmitigated cpu bug.)

    And of course the headline of getting a cpu you can’t fully use.