Had a recent conversation with someone about something similar…
In our case the primary index on a table was a something like a sequential ID but the table stored data from multiple tenants so each page had data from multiple tenants
Took a while to convince people that the DB was always going to read 16KB chunks so we could reduce IO by changing the primary index so it was based around an ID that was unique to the tenant
In our case the primary index on a table was a something like a sequential ID but the table stored data from multiple tenants so each page had data from multiple tenants
Took a while to convince people that the DB was always going to read 16KB chunks so we could reduce IO by changing the primary index so it was based around an ID that was unique to the tenant