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List:       postfix-users
Subject:    Re: Seperate maps for virtual domains?
From:       wietse () porcupine ! org (Wietse Venema)
Date:       2017-06-14 10:59:56
Message-ID: 3wnkDX0b8czJrP5 () spike ! porcupine ! org
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Julian Kippels:
> > You are doing N/2 table lookups to find the table that contains the
> > data. That is, you're doing linear search on top of hashing.
> > 
> @Wietse: N/2 is a little pessimistic, but thats only because I know the
> makeup of my mailboxes? 90% of it is in one virtual domain and that

The point is that you're slower than one table, whether it's N/2
or N/somethingelse.

> Anyway, I am going for a single big file now. I assume its not a problem
> that this map is 40MB big?

With a competent key-value store implementation, reading from a
40MB table should be no problem.

	Wietse
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