Quick and simple question about big imports

[whateverer]

Hello.

I want to import 1,5M+ hands.

If i convert PT3 DB do i need to run housekeeping, and if yes, which ones (i have a bit of customs stats there)?
Or if i import them directly do i need to rebuild cache etc?

I can see fall in performance after big imports, but searched through forum with no clear answer.


Ninja edit:

If there is no housekeeping done ini PT3 database, do any of the answers change?

[WhiteRider]

Housekeeping is done automatically in PT4 and there is no need to run anything manually (although doing Cluster and Vacuum/Analyze once in a while may help optimize things).

[whateverer]

Yeah, i know, but after big imports i can see hud slowing down and populating graphs stats also takes longer.

Vacuuming and clusteing improves that A LOT (at least for me).

i3 core normal hdd 4GB RAM

[kraada]

Vacuum/Analyze should be covered regularly under the default configuration but you can always do it more; it shouldn't take all that long. CLUSTERing obviously takes longer, and it can't hurt, but you won't see big differences if you do it often.