[Tile-serving] [osm2pgsql-dev/osm2pgsql] Any reasons why osm2pgsql doesn't leverage parallelization during huge maps import (eg: whole world)? (Discussion #2090)

[Paul Norman]

You want all the memory to be used. Most of it is used as cache by the OS.

The relevant numbers for disk performance are iops, queue depth, and %util. MB/s is not a useful measurement for a random workload.

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