Counterintuitively, write performance in modern databases is primarily constrained by disk read performance. That said, it is increasingly rare for disk I/O to

Counterintuitively, write performance in modern databases is primarily constrained by disk read performance. That said, it is increasingly rare for disk I/O to be a bottleneck for inserts. When your storage will happily sustain 10+ GB/s of write throughput, you tend to run out of things like network and memory bandwidth first.