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This article describes which performance numbers you can achieve with Ceph and how. But I warn you: you won’t catch up with local SSDs. Local SSDs (especially NVMe) are REALLY fast right now, their latency is about 0.05ms. It’s very hard for an SDS to achieve the same result, and beating it is almost impossible. The network alone eats those 0.05ms...
'''UPDATE: It's possible to achieve good latency with an SDS. I did it in my own project - Vitastor: https://vitastor.io :-) this is a block SDS architecturally similar to Ceph, but it's FAST. It achieved 0.14 ms latency (both read and write) on in a cluster with SATA SSDs. Ceph only achieved 1 ms for writes and 0.57 ms for reads on the same hardware. See [https://yourcmc.ru/git/vitalif/vitastor/src/branch/master/README.md README] for details.'''
== General benchmarking principles ==
