3 ms·
Many clouds don’t guarantee that small instances won’t span NUMA nodes. Here on HN I saw a comment by someone running VM scale sets with hundreds or even thous
by jiggawatts 1y ago
Many clouds don’t guarantee that small instances won’t span NUMA nodes.
Here on HN I saw a comment by someone running VM scale sets with hundreds or even thousands of nodes and their trick was to overprovision and then delete the instances that span NUMA nodes.
- bboreham 1y agoYou’re right, it’s not guaranteed. Also the hypervisor might lie to you - claiming a single NUMA node but actually crossing two on the VM host.
- jiggawatts 1y agoYou can directly measure the core-to-core latency.