3 ms·
Right, these are presumably running on boxes with many CPUs each. Whether instances migrate, I don't know; due to NUMA concerns they might be pinning instances
by cperciva 11y ago
Right, these are presumably running on boxes with many CPUs each. Whether instances migrate, I don't know; due to NUMA concerns they might be pinning instances to cores.
The other issue to consider is correlated spikes: When you aggregate 800 instances, you're probably going to see a pretty clear diurnal cycle. (And quite possibly middle-of-the-night spikes as synchronized cron jobs all kick off, too.)