[Tile-serving] [osm2pgsql-dev/osm2pgsql] osm2pgsql --append to existing imported slim database takes ages (Issue #2266)

[mboeringa]

@a14stoner 

One other thing I noticed is that you are still using HDD. The osm2pgsql manual clearly recommends (NVMe) SSDs due to the need for fast random access during some stages of the processing:

https://osm2pgsql.org/doc/manual.html#disk

Even if you can swap out the disks for only a single SATA SSD drive, it might help the processing speed. However, NVMe PCIe adaptors and a relatively small 1TB NVMe drive should cost you little, and be easy to install in older hardware.

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