There are currently two options how to "request" the number of initial tables for a table
1. specify it explicitly when creating a keyspace
2. let scylla calculate it on its own
Both are not very nice. The former doesn't take cluster layout into consideration. The latter does, but starts with one tablet per shard, which can be too low if the amount of data grows rapidly.
Here's a (maybe temporary) proposal to facilitate at least perf tests -- the --tablets-initial-scale-factor option that enhances the option number two above by multiplying the calculated number of tablets by the configured number. This is what we currently do to run perf tests by patching scylla, with the option it going to be more convenient.
Closesscylladb/scylladb#16919
* github.com:scylladb/scylladb:
config: Add --tablets-initial-scale-factor
tablet_allocator: Add initial tablets scale to config
tablet_allocator: Add config
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